Pub Date : 2025-04-07DOI: 10.1021/acs.inorgchem.5c00732
Chenhui Yan, Bowen Zhang, Yansong Liu, Zhibing He
There are strong radiological hazards and the risk of direct cell damage in living organisms for radioactive iodate (131IO3–/129IO3–). Thus, it is essential to capture and remove them. In the contribution, the micro flower-like Bi2S3 (MF-Bi2S3) was prepared via a hydrothermal method to investigate its adsorption behavior toward IO3–. MF-Bi2S3 exhibits the maximum adsorption capacity of 875.6 mg/g for IO3– at pH ≈ 3, and the adsorbent achieves a removal efficiency of 98.98% within 2 h. Furthermore, the removal efficiency of MF-Bi2S3 can still reach 96.37% at high concentrations of coexisting anions such as Cl–, SO42–, NO3–, and CO32–, demonstrating excellent anti-interference performance. In simulated artificial groundwater, the adsorbent achieves a removal rate of 88.8% for IO3–, suggesting its potential to solve the problem of IO3– in actual wastewater. Notably, the adsorbed products change depending on iodine content, with BiI3O9 and BiOI as the intermediate products, and the final product is BiOIO3. X-ray photoelectron spectroscopy detects the presence of I2 and I3– in the product, which is attributed to the reduction and fixed to iodine by S2–. Meanwhile, the corresponding S2– becomes SO42– and remains in the liquid after the reaction. This work provides a breakthrough solution for effectively removing IO3–.
{"title":"Introducing Micro Flowerlike Bismuth Sulfide for Iodate Anion Removal","authors":"Chenhui Yan, Bowen Zhang, Yansong Liu, Zhibing He","doi":"10.1021/acs.inorgchem.5c00732","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00732","url":null,"abstract":"There are strong radiological hazards and the risk of direct cell damage in living organisms for radioactive iodate (<sup>131</sup>IO<sub>3</sub><sup>–</sup>/<sup>129</sup>IO<sub>3</sub><sup>–</sup>). Thus, it is essential to capture and remove them. In the contribution, the micro flower-like Bi<sub>2</sub>S<sub>3</sub> (MF-Bi<sub>2</sub>S<sub>3</sub>) was prepared via a hydrothermal method to investigate its adsorption behavior toward IO<sub>3</sub><sup>–</sup>. MF-Bi<sub>2</sub>S<sub>3</sub> exhibits the maximum adsorption capacity of 875.6 mg/g for IO<sub>3</sub><sup>–</sup> at pH ≈ 3, and the adsorbent achieves a removal efficiency of 98.98% within 2 h. Furthermore, the removal efficiency of MF-Bi<sub>2</sub>S<sub>3</sub> can still reach 96.37% at high concentrations of coexisting anions such as Cl<sup>–</sup>, SO<sub>4</sub><sup>2–</sup>, NO<sub>3</sub><sup>–</sup>, and CO<sub>3</sub><sup>2–</sup>, demonstrating excellent anti-interference performance. In simulated artificial groundwater, the adsorbent achieves a removal rate of 88.8% for IO<sub>3</sub><sup>–</sup>, suggesting its potential to solve the problem of IO<sub>3</sub><sup>–</sup> in actual wastewater. Notably, the adsorbed products change depending on iodine content, with BiI<sub>3</sub>O<sub>9</sub> and BiOI as the intermediate products, and the final product is BiOIO<sub>3</sub>. X-ray photoelectron spectroscopy detects the presence of I<sub>2</sub> and I<sub>3</sub><sup>–</sup> in the product, which is attributed to the reduction and fixed to iodine by S<sup>2–</sup>. Meanwhile, the corresponding S<sup>2–</sup> becomes SO<sub>4</sub><sup>2–</sup> and remains in the liquid after the reaction. This work provides a breakthrough solution for effectively removing IO<sub>3</sub><sup>–</sup>.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"74 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-07DOI: 10.1021/acs.inorgchem.4c04907
Villads R. M. Nielsen, Olivia Aalling-Frederiksen, Kirsten M. Ø. Jensen, Thomas Just Sørensen
Understanding the mechanics of crystallization from solution is crucial for advancing material discovery and design. Studying these complex processes requires a combination of experimental techniques. Here, the crystallization of lanthanum(III)- and neodymium(III) hydroxides was studied with in situ and ex situ X-ray techniques in combination with pair distribution function analysis, scanning electron microscopy, light scattering, pH titrations, simulations, and optical spectroscopy. Starting from the Ln(III) aqua ions in nitric acid, the pH is increased to start the precipitation of hydroxides. In situ optical spectroscopy and potentiometry revealed that at pH = 6, an initial gel phase with a composition of [Ln(NO3)(OH)(H2O)z]OH was formed. At pH > 10, the nitrate ligands were replaced by hydroxides, resulting in gels with a composition of [Ln(OH)2(H2O)7]OH. Upon washing and dehydration, X-ray scattering and Rietveld analysis showed that the gels crystallize into Ln(OH)2(NO3)(H2O)z at pH < 10 and Ln(OH)3 at pH > 10. Ln(OH)3 was obtained at all pH values if hydrothermal treatment was performed prior to the dehydration. In situ total X-ray scattering and pair distribution function analysis was used to show that no crystallization occurs in solution and that the hydrothermal treatment removes water from the gel. The size and morphology of the isolated lanthanide(III) hydroxides were found to be dependent on the pH value, but our results showed that the gel structure is found in all cases, suggesting that crystallization occurs within gel particles and not in solution.
{"title":"Exploring the Crystallization of Lanthanum(III) and Neodymium(III) Hydroxides from Solution","authors":"Villads R. M. Nielsen, Olivia Aalling-Frederiksen, Kirsten M. Ø. Jensen, Thomas Just Sørensen","doi":"10.1021/acs.inorgchem.4c04907","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c04907","url":null,"abstract":"Understanding the mechanics of crystallization from solution is crucial for advancing material discovery and design. Studying these complex processes requires a combination of experimental techniques. Here, the crystallization of lanthanum(III)- and neodymium(III) hydroxides was studied with in situ and ex situ X-ray techniques in combination with pair distribution function analysis, scanning electron microscopy, light scattering, pH titrations, simulations, and optical spectroscopy. Starting from the Ln(III) aqua ions in nitric acid, the pH is increased to start the precipitation of hydroxides. In situ optical spectroscopy and potentiometry revealed that at pH = 6, an initial gel phase with a composition of [Ln(NO<sub>3</sub>)(OH)(H<sub>2</sub>O)<sub><i>z</i></sub>]OH was formed. At pH > 10, the nitrate ligands were replaced by hydroxides, resulting in gels with a composition of [Ln(OH)<sub>2</sub>(H<sub>2</sub>O)<sub>7</sub>]OH. Upon washing and dehydration, X-ray scattering and Rietveld analysis showed that the gels crystallize into Ln(OH)<sub>2</sub>(NO<sub>3</sub>)(H<sub>2</sub>O)<sub><i>z</i></sub> at pH < 10 and Ln(OH)<sub>3</sub> at pH > 10. Ln(OH)<sub>3</sub> was obtained at all pH values if hydrothermal treatment was performed prior to the dehydration. In situ total X-ray scattering and pair distribution function analysis was used to show that no crystallization occurs in solution and that the hydrothermal treatment removes water from the gel. The size and morphology of the isolated lanthanide(III) hydroxides were found to be dependent on the pH value, but our results showed that the gel structure is found in all cases, suggesting that crystallization occurs within gel particles and not in solution.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"6 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-07DOI: 10.1021/acs.inorgchem.5c00745
Chenyi Yu, Keke Wang, Beiyu Zhao, Yiming Lin, Changjiang Zhou, Xianliang Huo, Bo Xie, Hui-Min Wen, Yuanbin She, Jun Hu
The separation of ethane (C2H6) from ethylene (C2H4) is critical for obtaining polymer-grade C2H4. Adsorptive separation with C2H6-selective MOFs offers a viable alternative to energy-intensive cryogenic distillation, enabling the direct production of high-purity C2H4. In this study, we developed an ultrastable ethane-selective metal–organic framework, UiO-67-(CH3)2, which demonstrates enhanced C2H6 adsorption (4.10 mmol g–1 at 1 bar and 298 K), higher C2H6/C2H4 selectivity of 1.70, and an increased C2H6/C2H4 adsorption ratio of 1.53 compared to unmodified UiO-67. GCMC simulations demonstrate that C2H6 forms more C–H···π interactions with the surrounding benzene rings and more C–H···C interactions with methyl groups compared to C2H4, highlighting the synergistic effects of supramolecular interactions. Furthermore, the hydrophobic pore environment also minimizes water interference, with exceptionally low water uptake (0.019 g g–1 at 60% RH), ensuring robust separation capacity under high humid conditions. The introduction of methyl groups not only significantly enhances C2H6 adsorption performance and C2H6/C2H4 separation selectivity but also improves material’s hydrophobicity.
{"title":"Engineering Supramolecular Binding Sites in an Ultrastable and Hydrophobic Metal–Organic Framework for C2H6/C2H4 Separation","authors":"Chenyi Yu, Keke Wang, Beiyu Zhao, Yiming Lin, Changjiang Zhou, Xianliang Huo, Bo Xie, Hui-Min Wen, Yuanbin She, Jun Hu","doi":"10.1021/acs.inorgchem.5c00745","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00745","url":null,"abstract":"The separation of ethane (C<sub>2</sub>H<sub>6</sub>) from ethylene (C<sub>2</sub>H<sub>4</sub>) is critical for obtaining polymer-grade C<sub>2</sub>H<sub>4</sub>. Adsorptive separation with C<sub>2</sub>H<sub>6</sub>-selective MOFs offers a viable alternative to energy-intensive cryogenic distillation, enabling the direct production of high-purity C<sub>2</sub>H<sub>4</sub>. In this study, we developed an ultrastable ethane-selective metal–organic framework, UiO-67-(CH<sub>3</sub>)<sub>2</sub>, which demonstrates enhanced C<sub>2</sub>H<sub>6</sub> adsorption (4.10 mmol g<sup>–1</sup> at 1 bar and 298 K), higher C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> selectivity of 1.70, and an increased C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> adsorption ratio of 1.53 compared to unmodified UiO-67. GCMC simulations demonstrate that C<sub>2</sub>H<sub>6</sub> forms more C–H···π interactions with the surrounding benzene rings and more C–H···C interactions with methyl groups compared to C<sub>2</sub>H<sub>4</sub>, highlighting the synergistic effects of supramolecular interactions. Furthermore, the hydrophobic pore environment also minimizes water interference, with exceptionally low water uptake (0.019 g g<sup>–1</sup> at 60% RH), ensuring robust separation capacity under high humid conditions. The introduction of methyl groups not only significantly enhances C<sub>2</sub>H<sub>6</sub> adsorption performance and C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> separation selectivity but also improves material’s hydrophobicity.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"191 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-06DOI: 10.1021/acs.inorgchem.4c05576
Mateusz Reczyński, Maciej Pazera, Michał Magott
Two 3D bimetallic cyanido-bridged coordination polymers, [CuII(H4tetac)]2[MIV(CN)8]·4H2O (M = MoIV (1) and WIV (2)), based on copper(II) complex of tetracarboxylic-derivative of cyclam, H4tetac (=1,4,8,11-tetrazacyclotetradecane-6,6,13,13-tetracarboxylic acid), have been synthesized and characterized in terms of structure, proton conductivity, and the photomagnetic effect. The isostructural compounds crystallize in the polar Fdd2 space group and present a diamond-like topology. The carboxylic groups in the structure yield proton conductivities of 5.4(3) × 10–7 S cm–1 (1) and 8.6(3) × 10–7 S cm–1 (2) at 298 K and 98% relative humidity. A strong humidity dependence of conductivity and activation energy values of 0.34 eV (1) and 0.36 eV (2) indicate the Grotthuss mechanism of proton transport that is mediated by crystallization water molecules. In the ground state, 1 and 2 are paramagnets due to CuII (S = 1/2) centers separated by diamagnetic [MIV(CN)8]4– anions (S = 0). Upon 450 nm light irradiation at 10 K, both compounds show a photomagnetic response. The MoIV system shows higher photoconversion rates, while the WIV analogue exhibits full reversibility. Compounds 1 and 2 are the first examples of cyanido-bridged assemblies combining proton conductivity and the photomagnetic effect, advancing the reticular chemistry of cyanido-bridged frameworks.
{"title":"Proton Conductivity in Photomagnetic CuII2-[MIV(CN)8] Frameworks (M = MoIV and WIV) Facilitated by the Tetracarboxy-Derivative of Cyclam","authors":"Mateusz Reczyński, Maciej Pazera, Michał Magott","doi":"10.1021/acs.inorgchem.4c05576","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05576","url":null,"abstract":"Two 3D bimetallic cyanido-bridged coordination polymers, [Cu<sup>II</sup>(H<sub>4</sub>tetac)]<sub>2</sub>[M<sup>IV</sup>(CN)<sub>8</sub>]·4H<sub>2</sub>O (M = Mo<sup>IV</sup> (<b>1</b>) and W<sup>IV</sup> (<b>2</b>)), based on copper(II) complex of tetracarboxylic-derivative of cyclam, H<sub>4</sub>tetac (=1,4,8,11-tetrazacyclotetradecane-6,6,13,13-tetracarboxylic acid), have been synthesized and characterized in terms of structure, proton conductivity, and the photomagnetic effect. The isostructural compounds crystallize in the polar <i>Fdd</i>2 space group and present a diamond-like topology. The carboxylic groups in the structure yield proton conductivities of 5.4(3) × 10<sup>–7</sup> S cm<sup>–1</sup> (<b>1</b>) and 8.6(3) × 10<sup>–7</sup> S cm<sup>–1</sup> (<b>2</b>) at 298 K and 98% relative humidity. A strong humidity dependence of conductivity and activation energy values of 0.34 eV (<b>1</b>) and 0.36 eV (<b>2</b>) indicate the Grotthuss mechanism of proton transport that is mediated by crystallization water molecules. In the ground state, <b>1</b> and <b>2</b> are paramagnets due to Cu<sup>II</sup> (<i>S</i> = 1/2) centers separated by diamagnetic [M<sup>IV</sup>(CN)<sub>8</sub>]<sup>4–</sup> anions (<i>S</i> = 0). Upon 450 nm light irradiation at 10 K, both compounds show a photomagnetic response. The Mo<sup>IV</sup> system shows higher photoconversion rates, while the W<sup>IV</sup> analogue exhibits full reversibility. Compounds <b>1</b> and <b>2</b> are the first examples of cyanido-bridged assemblies combining proton conductivity and the photomagnetic effect, advancing the reticular chemistry of cyanido-bridged frameworks.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"20 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-05DOI: 10.1021/acs.inorgchem.5c00760
Hugo den Besten, Yanrong Zhang, Linda E. Eijsink, Andy S. Sardjan, Anouk Volker, Wesley R. Browne
Cobalt(II) carboxylates show broad reactivity with peroxides and O2 and are the industry standard catalyst for the activation of peroxide initiators for the radical polymerization of alkenes under ambient conditions. Curing alkene-based resins containing cross-linking units, i.e., monomers containing two or more alkene units, is important in forming hard protective coatings and materials. The activation of peroxide initiators produces the propagating chain end radicals needed for polymerization. Since polymerization progress depends on the rate of initiator activation and the concentration of propagating radicals, interception of radicals by O2 can inhibit curing. Cobalt(II) carboxylates are used due to their reactivity in the presence of oxygen, even in resin coatings. Alternative catalysts based on manganese and iron are desirable. Hence, the impact of O2 on their performance in resin curing is of interest. Here, we use NIR emission and time-resolved spectroscopy, employing the O2-sensitive probe [Ru(ph2phen)3]2+, to determine the concentration of dissolved [O2] in alkene resins during curing with three representative catalysts, Co(II)(2-ethylhexanoate)2, Fe(II)-bispidine, and Mn(II)(neodecanoate)2. The rate of depletion of O2 is highly dependent on the catalyst used, but in all cases, it is well before the onset of the autoacceleration of polymerization in cross-linking resins.
{"title":"Dependence of O2 Depletion on Transition Metal Catalyst in Radical Polymerization of Cross-Linking Alkene Resins","authors":"Hugo den Besten, Yanrong Zhang, Linda E. Eijsink, Andy S. Sardjan, Anouk Volker, Wesley R. Browne","doi":"10.1021/acs.inorgchem.5c00760","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00760","url":null,"abstract":"Cobalt(II) carboxylates show broad reactivity with peroxides and O<sub>2</sub> and are the industry standard catalyst for the activation of peroxide initiators for the radical polymerization of alkenes under ambient conditions. Curing alkene-based resins containing cross-linking units, i.e., monomers containing two or more alkene units, is important in forming hard protective coatings and materials. The activation of peroxide initiators produces the propagating chain end radicals needed for polymerization. Since polymerization progress depends on the rate of initiator activation and the concentration of propagating radicals, interception of radicals by O<sub>2</sub> can inhibit curing. Cobalt(II) carboxylates are used due to their reactivity in the presence of oxygen, even in resin coatings. Alternative catalysts based on manganese and iron are desirable. Hence, the impact of O<sub>2</sub> on their performance in resin curing is of interest. Here, we use NIR emission and time-resolved spectroscopy, employing the O<sub>2</sub>-sensitive probe [Ru(ph<sub>2</sub>phen)<sub>3</sub>]<sup>2+</sup>, to determine the concentration of dissolved [O<sub>2</sub>] in alkene resins during curing with three representative catalysts, Co(II)(2-ethylhexanoate)<sub>2</sub>, Fe(II)-bispidine, and Mn(II)(neodecanoate)<sub>2</sub>. The rate of depletion of O<sub>2</sub> is highly dependent on the catalyst used, but in all cases, it is well before the onset of the autoacceleration of polymerization in cross-linking resins.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"59 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nitrogen fixation catalyzed by transition metal complexes provides an attractive alternative to the Haber–Bosch process and has received widespread attention. In this work, the reaction pathways of N2 to NH3/N2H4 catalyzed by dinuclear and mononuclear Cr–N2 complexes bearing cyclopentadienyl-phosphine ligands and mediated by LutH+ (as proton donors) and CrCp*2 (as electron donors) were investigated systematically using density functional theory calculations. The key step of the reactions was clarified as the first hydrogenation. The effect of different combinations of six proton sources (three pyridine acids and three anilino acids) and three electron sources (CrCp*2, CoCp*2, and CoCp2) on the reduction of N2 to NH3/N2H4 was also explored by calculating the critical step of the reactions. Based on the calculations, the dinuclear Cr–N2 complex is expected to be an effective catalyst for the reduction of N2 to NH3/N2H4 when using the combinations of CrCp*2 with each of the six proton sources and of CoCp*2 with anilino acids. Our work provides insights into understanding and optimizing Cr catalytic systems for efficient dinitrogen fixations.
{"title":"Theoretical Studies on the Reduction of N2 to NH3/N2H4 Catalyzed by Chromium Complexes","authors":"Ming-Tian Hao, Beibei Zhang, Deqing Li, Baerlike Wujieti, Xiaoyu Li, Bo-Zhen Chen","doi":"10.1021/acs.inorgchem.4c05237","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05237","url":null,"abstract":"Nitrogen fixation catalyzed by transition metal complexes provides an attractive alternative to the Haber–Bosch process and has received widespread attention. In this work, the reaction pathways of N<sub>2</sub> to NH<sub>3</sub>/N<sub>2</sub>H<sub>4</sub> catalyzed by dinuclear and mononuclear Cr–N<sub>2</sub> complexes bearing cyclopentadienyl-phosphine ligands and mediated by LutH<sup>+</sup> (as proton donors) and CrCp*<sub>2</sub> (as electron donors) were investigated systematically using density functional theory calculations. The key step of the reactions was clarified as the first hydrogenation. The effect of different combinations of six proton sources (three pyridine acids and three anilino acids) and three electron sources (CrCp*<sub>2</sub>, CoCp*<sub>2</sub>, and CoCp<sub>2</sub>) on the reduction of N<sub>2</sub> to NH<sub>3</sub>/N<sub>2</sub>H<sub>4</sub> was also explored by calculating the critical step of the reactions. Based on the calculations, the dinuclear Cr–N<sub>2</sub> complex is expected to be an effective catalyst for the reduction of N<sub>2</sub> to NH<sub>3</sub>/N<sub>2</sub>H<sub>4</sub> when using the combinations of CrCp*<sub>2</sub> with each of the six proton sources and of CoCp*<sub>2</sub> with anilino acids. Our work provides insights into understanding and optimizing Cr catalytic systems for efficient dinitrogen fixations.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"54 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-05DOI: 10.1021/acs.inorgchem.4c05458
Xiang Wang, Sandra D. Taylor, Michel Sassi, Sichuang Xue, Zhenzhong Yang, Jia Liu, Lili Liu, Xiaoxu Li, Yingge Du, Kevin M. Rosso, Xin Zhang
Herein, we examine the impact of Ga+ ion kinetic energy and the target material type on the extent of ion implantation and structural damage in atomic force microscopy probes made of Al2O3 and ZnO manufactured by focused ion beam using scanning transmission electron microscopy and energy-dispersive X-ray mapping. Penetration of Ga into the Al2O3 lattice induced structural distortions and amorphization. For the ZnO probes, Ga is uniformly dispersed across the surface, resulting in the formation of distinct clusters. Atom probe tomography further validates the Ga distributions in Al2O3 and ZnO nanoprobes. Complementary Monte Carlo simulations with the transport of ions in the matter program indicated that the introduction of Ga+ prompts the generation of cation and anion vacancies, an occurrence more pronounced in Al2O3 compared to ZnO. This study not only enriches the knowledge of ion–matter interactions but also serves as a practical guide for the fabrication of nanoscale functionalized atomic force microscopy probes.
{"title":"Impacts of Focused Ion Beam Processing on the Fabrication of Nanoscale Functionalized Probes","authors":"Xiang Wang, Sandra D. Taylor, Michel Sassi, Sichuang Xue, Zhenzhong Yang, Jia Liu, Lili Liu, Xiaoxu Li, Yingge Du, Kevin M. Rosso, Xin Zhang","doi":"10.1021/acs.inorgchem.4c05458","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05458","url":null,"abstract":"Herein, we examine the impact of Ga<sup>+</sup> ion kinetic energy and the target material type on the extent of ion implantation and structural damage in atomic force microscopy probes made of Al<sub>2</sub>O<sub>3</sub> and ZnO manufactured by focused ion beam using scanning transmission electron microscopy and energy-dispersive X-ray mapping. Penetration of Ga into the Al<sub>2</sub>O<sub>3</sub> lattice induced structural distortions and amorphization. For the ZnO probes, Ga is uniformly dispersed across the surface, resulting in the formation of distinct clusters. Atom probe tomography further validates the Ga distributions in Al<sub>2</sub>O<sub>3</sub> and ZnO nanoprobes. Complementary Monte Carlo simulations with the transport of ions in the matter program indicated that the introduction of Ga<sup>+</sup> prompts the generation of cation and anion vacancies, an occurrence more pronounced in Al<sub>2</sub>O<sub>3</sub> compared to ZnO. This study not only enriches the knowledge of ion–matter interactions but also serves as a practical guide for the fabrication of nanoscale functionalized atomic force microscopy probes.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"25 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Copper(I) halides are promising candidates for advanced optoelectronics, such as white-light-emitting diodes (WLEDs), scintillators, and photodetectors. Designing and synthesizing low-dimensional hybrid copper halides with blue-light excitation remains an enormous challenge. Herein, we have prepared two one-dimensional (1D) hybrid Cu(I)-based metal iodides, namely, (C6H7N)CuI and (C6H8N)CuI2 single crystals, by deliberately adjusting the ratio of the reactants 4-methylpyridine (4-MePy) and CuI. (C6H7N)CuI crystals are nonluminous, while (C6H8N)CuI2 crystals exhibit an unusual yellow emission with a broad excitation band in the range of 260–500 nm Furthermore, a prototypical WLED is fabricated by combining a commercial 430 nm blue chip and (C6H8N)CuI2 phosphor, which exhibits a correlated color temperature (CCT) of 5645 K and a CIE color coordinate of (0.329, 0.334), thus demonstrating potential application for white lighting. Remarkably, (C6H8N)CuI2 crystals emit red fluorescence upon adsorption of methanol but fail for all other alcohols. Notably, the initial yellow luminescence can be recovered upon volatilization of methanol from the crystals, thus achieving a reversible photoluminescence switching. This work not only presents an important reference of blue-light-excitable hybrid Cu(I)-based metal iodide phosphor for WLEDs but also provides an intriguing fluorescence sensor for the reversible detection of methanol.
{"title":"Blue-Light-Excitable Yellow Emissive One-Dimensional Hybrid Copper(I) Iodide for White-Light-Emitting Diode and Methanol Sensing Application","authors":"Xinhui Li, Yanjiao Zhang, Pifu Gong, Zhigang Wang, Mingxing Chen, Shujuan Zhuang, Shengnan Zhang, Zhen Jia, Mingjun Xia","doi":"10.1021/acs.inorgchem.5c00698","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00698","url":null,"abstract":"Copper(I) halides are promising candidates for advanced optoelectronics, such as white-light-emitting diodes (WLEDs), scintillators, and photodetectors. Designing and synthesizing low-dimensional hybrid copper halides with blue-light excitation remains an enormous challenge. Herein, we have prepared two one-dimensional (1D) hybrid Cu(I)-based metal iodides, namely, (C<sub>6</sub>H<sub>7</sub>N)CuI and (C<sub>6</sub>H<sub>8</sub>N)CuI<sub>2</sub> single crystals, by deliberately adjusting the ratio of the reactants 4-methylpyridine (4-MePy) and CuI. (C<sub>6</sub>H<sub>7</sub>N)CuI crystals are nonluminous, while (C<sub>6</sub>H<sub>8</sub>N)CuI<sub>2</sub> crystals exhibit an unusual yellow emission with a broad excitation band in the range of 260–500 nm Furthermore, a prototypical WLED is fabricated by combining a commercial 430 nm blue chip and (C<sub>6</sub>H<sub>8</sub>N)CuI<sub>2</sub> phosphor, which exhibits a correlated color temperature (CCT) of 5645 K and a CIE color coordinate of (0.329, 0.334), thus demonstrating potential application for white lighting. Remarkably, (C<sub>6</sub>H<sub>8</sub>N)CuI<sub>2</sub> crystals emit red fluorescence upon adsorption of methanol but fail for all other alcohols. Notably, the initial yellow luminescence can be recovered upon volatilization of methanol from the crystals, thus achieving a reversible photoluminescence switching. This work not only presents an important reference of blue-light-excitable hybrid Cu(I)-based metal iodide phosphor for WLEDs but also provides an intriguing fluorescence sensor for the reversible detection of methanol.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"183 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-04DOI: 10.1021/acs.inorgchem.5c00477
Yu-Ying Li, Xia Niu, Wen-Yuan Pei, Jian-Fang Ma
Design of high-performance electrochemical sensors for detection of antibiotics is greatly desirable for human health and ecological safety. Herein, a new metal–organic framework (MOF), namely, [Zn2L(PDC)2(H2O)2]·3H2O (1), was synthesized with isophthalic acid (H2PDC), Zn(II) cation, and cyclotriveratrylene-based ligand (L). By mechanical milling, 1 was incorporated with mesoporous carbon (MC) to produce 1@MC. Subsequently, 1@MC was decorated on different bare electrodes (glass carbon (GC), Au, Pt, or W electrode). The introduction of MC significantly improved the conductivity and the current response intensity for determination of chloramphenicol (CAP). Among these sensors, the current responses of CAP on 1@MC(1:2)/GCE and 1@MC(1:2)/Au were more intense. Markedly, they exhibited relatively wide linear ranges (0.5–400 μM on 1@MC(1:2)/GCE and 1–400 μM on 1@MC(1:2)/Au) and low limits of detection (0.15 μM on 1@MC(1:2)/GCE and 0.48 μM on 1@MC(1:2)/Au). Particularly, they can be used for the measurement of CAP in eye drop and milk sample with fine recoveries.
{"title":"Electrochemical Detection of Chloramphenicol with Different Modified Electrodes Based on the Metal-Cyclotriveratrylene Framework and Mesoporous Carbon","authors":"Yu-Ying Li, Xia Niu, Wen-Yuan Pei, Jian-Fang Ma","doi":"10.1021/acs.inorgchem.5c00477","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00477","url":null,"abstract":"Design of high-performance electrochemical sensors for detection of antibiotics is greatly desirable for human health and ecological safety. Herein, a new metal–organic framework (MOF), namely, [Zn<sub>2</sub>L(PDC)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]·3H<sub>2</sub>O (<b>1</b>), was synthesized with isophthalic acid (H<sub>2</sub>PDC), Zn(II) cation, and cyclotriveratrylene-based ligand (L). By mechanical milling, <b>1</b> was incorporated with mesoporous carbon (MC) to produce <b>1</b>@MC. Subsequently, <b>1</b>@MC was decorated on different bare electrodes (glass carbon (GC), Au, Pt, or W electrode). The introduction of MC significantly improved the conductivity and the current response intensity for determination of chloramphenicol (CAP). Among these sensors, the current responses of CAP on <b>1</b>@MC(1:2)/GCE and <b>1</b>@MC(1:2)/Au were more intense. Markedly, they exhibited relatively wide linear ranges (0.5–400 μM on <b>1</b>@MC(1:2)/GCE and 1–400 μM on <b>1</b>@MC(1:2)/Au) and low limits of detection (0.15 μM on <b>1</b>@MC(1:2)/GCE and 0.48 μM on <b>1</b>@MC(1:2)/Au). Particularly, they can be used for the measurement of CAP in eye drop and milk sample with fine recoveries.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"183 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-04DOI: 10.1021/acs.inorgchem.5c00298
Edward Latham, Alice M. Bowen, Nicholas Cox, Nicholas F. Chilton
The development of molecular quantum bits (qubits) for quantum information processing is a lofty goal. While many contemporary works investigate their potential for error correction, fault-tolerance, memories, etc., there is still a lack of experimental examples of molecular multiqubit sequences. Herein, we perform a theoretical investigation of spin Hamiltonian parameter space to identify molecules that could be used to implement a 4-level superdense coding algorithm that has the least stringent requirements for experimental implementation. To do so, we analyze the zero-field splitting (ZFS) Hamiltonian of an S = 3/2 spin system to determine its effectiveness as a molecular qudit capable of performing the superdense coding circuit with X-band pulsed electron paramagnetic resonance (EPR), accounting for realistic constraints imposed by EPR spectrometers. For an S = 3/2 system, the optimal ZFS parameters are |D| ≈ 0.115 cm–1 and |E| ≈ −0.0383 cm–1 (|E/D| ≈ 0.33 approaching the rhombic limit of 1/3), with a field around 160 mT. Our findings highlight the need to maximize the rhombicity of the spin Hamiltonian for four-level molecular qudits.
{"title":"Inverse Design of Molecular Qudits for Quantum Circuitry","authors":"Edward Latham, Alice M. Bowen, Nicholas Cox, Nicholas F. Chilton","doi":"10.1021/acs.inorgchem.5c00298","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00298","url":null,"abstract":"The development of molecular quantum bits (qubits) for quantum information processing is a lofty goal. While many contemporary works investigate their potential for error correction, fault-tolerance, memories, etc., there is still a lack of experimental examples of molecular multiqubit sequences. Herein, we perform a theoretical investigation of spin Hamiltonian parameter space to identify molecules that could be used to implement a 4-level superdense coding algorithm that has the least stringent requirements for experimental implementation. To do so, we analyze the zero-field splitting (ZFS) Hamiltonian of an <i>S</i> = 3/2 spin system to determine its effectiveness as a molecular qudit capable of performing the superdense coding circuit with X-band pulsed electron paramagnetic resonance (EPR), accounting for realistic constraints imposed by EPR spectrometers. For an <i>S</i> = 3/2 system, the optimal ZFS parameters are |<i>D</i>| ≈ 0.115 cm<sup>–1</sup> and |<i>E</i>| ≈ −0.0383 cm<sup>–1</sup> (|<i>E</i>/<i>D</i>| ≈ 0.33 approaching the rhombic limit of 1/3), with a field around 160 mT. Our findings highlight the need to maximize the rhombicity of the spin Hamiltonian for four-level molecular qudits.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"34 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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