Pub Date : 2025-04-02DOI: 10.1021/acs.inorgchem.4c05344
Yan Zhang, Ye Zhu, Jianhui Jiang, Yong Chen, Zheng Li
We report a novel approach for synthesizing cadmium sulfoselenide nanoplatelets from alloyed quantum dots. The resulting nanoplatelets, with a zinc-blende crystal structure, display uniform morphology, sharp photoluminescence, and spatially homogeneous elemental distributions. Correlated analyses corroborate the evolution of cadmium sulfoselenide nanoplatelets derived from alloyed quantum dots prepared with selenium sulfide.
{"title":"Preparation of Colloidal Cadmium Sulfoselenide Nanoplatelets from Alloyed Quantum Dots","authors":"Yan Zhang, Ye Zhu, Jianhui Jiang, Yong Chen, Zheng Li","doi":"10.1021/acs.inorgchem.4c05344","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05344","url":null,"abstract":"We report a novel approach for synthesizing cadmium sulfoselenide nanoplatelets from alloyed quantum dots. The resulting nanoplatelets, with a zinc-blende crystal structure, display uniform morphology, sharp photoluminescence, and spatially homogeneous elemental distributions. Correlated analyses corroborate the evolution of cadmium sulfoselenide nanoplatelets derived from alloyed quantum dots prepared with selenium sulfide.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"189 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758343","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 : 2025-04-02DOI: 10.1021/acs.inorgchem.5c00082
Sakshi Bajaj, Saumi Ray
Cobalt(II)-exchanged X and Y zeolites with varying metal loadings were employed to convert CO2 to cyclic carbonates starting from alkenes. The transformation was carried out using O2 as an oxidant in a mixture of O2 and CO2 under atmospheric pressure, and a maximum yield of 35.7% cyclic carbonate was achieved. Studies revealed a stark difference among both the zeolites, primarily arising from a difference in their ion exchange behaviors. Their catalytic and recyclability properties differed as a result of this variation.
{"title":"Unveiling the Dichotomy Between Cobalt(II)-Exchanged X and Y Faujasite Zeolites via Oxidative Carboxylation of Alkene to Cyclic Carbonate","authors":"Sakshi Bajaj, Saumi Ray","doi":"10.1021/acs.inorgchem.5c00082","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00082","url":null,"abstract":"Cobalt(II)-exchanged X and Y zeolites with varying metal loadings were employed to convert CO<sub>2</sub> to cyclic carbonates starting from alkenes. The transformation was carried out using O<sub>2</sub> as an oxidant in a mixture of O<sub>2</sub> and CO<sub>2</sub> under atmospheric pressure, and a maximum yield of 35.7% cyclic carbonate was achieved. Studies revealed a stark difference among both the zeolites, primarily arising from a difference in their ion exchange behaviors. Their catalytic and recyclability properties differed as a result of this variation.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"107 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758744","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 : 2025-04-02DOI: 10.1021/acs.inorgchem.4c05502
Gui-Xin Yan, Er-Xia Chen, Jin-Xia Yang, Jian Zhang, Qipu Lin
The sustainable development of nuclear energy raises significant challenges in handling radioactive iodine (I2). Tin-oxo clusters are multimetal aggregates composed of Sn-oxide motifs and surface ligands. Sn2/4+ ions have a strong affinity for iodine, making tin-oxo clusters promising candidates for trapping I2. In this work, we constructed two BINOL (=1,1′-binaphthol)-based organotin-oxo clusters with bowl-shaped structures and used them in iodine absorption study. The BINOL-based organotin-oxo clusters demonstrated remarkable performance in an I2 vapor adsorption experiment, with Sn6L4 achieving an adsorption capacity of 1.36 g·g–1 at 80 °C. Combining experimental characterizations and theoretical calculations, we found that the BINOL-based organotin-oxo clusters interact with iodine through charge transfer interactions and Sn–I bondings. Additionally, the introduction of a butyl group enhances the adsorption capacity by facilitating C–H–I interactions. The research paves the way for the development of tin-oxo cluster-based iodine adsorbents.
{"title":"Organotin-Oxo Clusters with Enhanced π-Conjugation for Iodine Capture","authors":"Gui-Xin Yan, Er-Xia Chen, Jin-Xia Yang, Jian Zhang, Qipu Lin","doi":"10.1021/acs.inorgchem.4c05502","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05502","url":null,"abstract":"The sustainable development of nuclear energy raises significant challenges in handling radioactive iodine (I<sub>2</sub>). Tin-oxo clusters are multimetal aggregates composed of Sn-oxide motifs and surface ligands. Sn<sup>2/4+</sup> ions have a strong affinity for iodine, making tin-oxo clusters promising candidates for trapping I<sub>2</sub>. In this work, we constructed two BINOL (=1,1′-binaphthol)-based organotin-oxo clusters with bowl-shaped structures and used them in iodine absorption study. The BINOL-based organotin-oxo clusters demonstrated remarkable performance in an I<sub>2</sub> vapor adsorption experiment, with Sn<sub>6</sub>L<sub>4</sub> achieving an adsorption capacity of 1.36 g·g<sup>–1</sup> at 80 °C. Combining experimental characterizations and theoretical calculations, we found that the BINOL-based organotin-oxo clusters interact with iodine through charge transfer interactions and Sn–I bondings. Additionally, the introduction of a butyl group enhances the adsorption capacity by facilitating C–H–I interactions. The research paves the way for the development of tin-oxo cluster-based iodine adsorbents.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"3 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758349","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 : 2025-04-02DOI: 10.1021/acs.inorgchem.4c05231
Gui-Yuan Wu, Ling Hu, Ling Zhu, Zi-Yi Xu, Wei-Liang Hu, Lianrui Hu, Yi Qin, Xiao He, Ben Zhong Tang, Zhou Lu
Photoswitchable catalysts provide a versatile strategy for controlling catalytic activities through light stimuli, presenting significant potential for the precise regulation of synthetic transformations. Herein, we successfully synthesized a novel photoswitchable catalytic metallacage MC from meso-tetra-(2-pyridyl)-porphines (TPP) and Pt(II)-bisthienylethene (DTE-1) via coordination-driven self-assembly. The Pt(II)-bisthienylethene ligand within the metallacage exhibits a reversible conversion between its ring-opened and ring-closed isomers upon alternating UV and visible radiation, facilitating photoswitchable Förster resonance energy transfer (FRET) in MC systems. Notably, the two forms of the metallacage exhibit switchable performance between highly and poorly catalytical activity for the degradation of Rhodamine B. This work not only develops a novel metallacage-based photoswitchable FRET system but also provides a new avenue for constructing artificial photoregulated enzymes.
{"title":"FRET-Mediated Photoswitchable Catalytic Metallacage with Tunable Activity for Organic Dye Degradation","authors":"Gui-Yuan Wu, Ling Hu, Ling Zhu, Zi-Yi Xu, Wei-Liang Hu, Lianrui Hu, Yi Qin, Xiao He, Ben Zhong Tang, Zhou Lu","doi":"10.1021/acs.inorgchem.4c05231","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05231","url":null,"abstract":"Photoswitchable catalysts provide a versatile strategy for controlling catalytic activities through light stimuli, presenting significant potential for the precise regulation of synthetic transformations. Herein, we successfully synthesized a novel photoswitchable catalytic metallacage <b>MC</b> from meso-tetra-(2-pyridyl)-porphines (<b>TPP</b>) and Pt(II)-bisthienylethene (<b>DTE-1</b>) via coordination-driven self-assembly. The Pt(II)-bisthienylethene ligand within the metallacage exhibits a reversible conversion between its ring-opened and ring-closed isomers upon alternating UV and visible radiation, facilitating photoswitchable Förster resonance energy transfer (FRET) in <b>MC</b> systems. Notably, the two forms of the metallacage exhibit switchable performance between highly and poorly catalytical activity for the degradation of Rhodamine B. This work not only develops a novel metallacage-based photoswitchable FRET system but also provides a new avenue for constructing artificial photoregulated enzymes.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"32 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758338","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}
A structural design strategy was employed to develop NaGd2Ga2InGe2O12:Sm3+ (NGGIG:Sm3+) garnet phosphors, optimizing the local coordination environment to enhance luminescence performance. By tailoring site occupation, Sm3+ ions were incorporated into an asymmetric crystal field, where a statistical probability model confirmed that ∼97% of Sm3+ ions reside in distorted coordination environments, promoting electric dipole(ED) transitions. The phosphors exhibit a high red-to-orange (R/O) intensity ratio of 2.97, contributing to enhanced red emission. CIE chromaticity coordinates of (0.61, 0.39) indicate a significant shift toward the red region, and the phosphors retain over 70% of their luminescence intensity at 400 K, demonstrating good thermal stability. These characteristics make NGGIG:Sm3+ a promising candidate for high-performance red phosphors in solid-state lighting applications, highlighting the effectiveness of site engineering in garnet structures for optimizing luminescence efficiency and stability.
{"title":"Enlarging Environmental Asymmetry by the Site Tailoring to Enhance Luminescence Properties of Sm3+ in the (Gd,Na)3(Ga,In)2(Ga,Ge)3O12 Garnet","authors":"Jiajun Feng, Yongxin Yu, Hongji Song, Zibo Chen, Yingxiang Zhu, Jiahui Liu, Jingtian Xie, Lianfen Chen, Junhao Li","doi":"10.1021/acs.inorgchem.5c00549","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00549","url":null,"abstract":"A structural design strategy was employed to develop NaGd<sub>2</sub>Ga<sub>2</sub>InGe<sub>2</sub>O<sub>12</sub>:Sm<sup>3+</sup> (NGGIG:Sm<sup>3+</sup>) garnet phosphors, optimizing the local coordination environment to enhance luminescence performance. By tailoring site occupation, Sm<sup>3+</sup> ions were incorporated into an asymmetric crystal field, where a statistical probability model confirmed that ∼97% of Sm<sup>3+</sup> ions reside in distorted coordination environments, promoting electric dipole(ED) transitions. The phosphors exhibit a high red-to-orange (<i>R</i>/<i>O</i>) intensity ratio of 2.97, contributing to enhanced red emission. CIE chromaticity coordinates of (0.61, 0.39) indicate a significant shift toward the red region, and the phosphors retain over 70% of their luminescence intensity at 400 K, demonstrating good thermal stability. These characteristics make NGGIG:Sm<sup>3+</sup> a promising candidate for high-performance red phosphors in solid-state lighting applications, highlighting the effectiveness of site engineering in garnet structures for optimizing luminescence efficiency and stability.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"23 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758344","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 : 2025-04-01DOI: 10.1021/acs.inorgchem.5c00272
Roman Kimmich, Ralf H. Kern, Markus Strienz, Hartmut Schubert, Claudio Schrenk, Klaus Eichele, Lars Wesemann, Andreas Schnepf
The planar, non-twisted distannene Sn2(TIPS)4 (1, TIPS = SiiPr3) reacts with CS2 to form a tetrathiaethylene derivative via the dimerization of two S-heterocyclic carbenes (SHCs). These intermediary-formed SHCs can be transferred to palladium as ligands or captured with B(C6F5)3 (BCF) and, furthermore, facilitate a new pathway for formation of the stannaethene SHC═Sn(TIPS)2 by the reaction of 1 with (PPh3)2Pd-CS2. In addition to the characterization of the new complexes, theoretical calculations of the frontier orbitals were performed, which indicate a high π-acceptor character of the SHC.
{"title":"Capture of an In Situ Formed Distanna-S-heterocyclic Carbene","authors":"Roman Kimmich, Ralf H. Kern, Markus Strienz, Hartmut Schubert, Claudio Schrenk, Klaus Eichele, Lars Wesemann, Andreas Schnepf","doi":"10.1021/acs.inorgchem.5c00272","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00272","url":null,"abstract":"The planar, non-twisted distannene Sn<sub>2</sub>(TIPS)<sub>4</sub> (<b>1</b>, TIPS = Si<sup><i>i</i></sup>Pr<sub>3</sub>) reacts with CS<sub>2</sub> to form a tetrathiaethylene derivative via the dimerization of two S-heterocyclic carbenes (SHCs). These intermediary-formed SHCs can be transferred to palladium as ligands or captured with B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub> (BCF) and, furthermore, facilitate a new pathway for formation of the stannaethene SHC═Sn(TIPS)<sub>2</sub> by the reaction of <b>1</b> with (PPh<sub>3</sub>)<sub>2</sub>Pd-CS<sub>2</sub>. In addition to the characterization of the new complexes, theoretical calculations of the frontier orbitals were performed, which indicate a high π-acceptor character of the SHC.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"12 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745296","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 : 2025-04-01DOI: 10.1021/acs.inorgchem.5c00523
Jordon S. Hilliard, Daniel J. Murray, Ankita Saha, Joshua E. Goldberger, Casey R. Wade
Postsynthetic methods have been used to immobilize a carboxylate-functionalized diphosphine ligand, N,N-bis[(diphenylphosphino)methyl]glycinate (dppmg), in different metal–organic framework (MOF) supports. H(dppmg) reacts quantitatively with Zn–OH groups in MFU-4l-OH (1) to provide solid-state ligands (1-H-x) with controllable diphosphine loadings. Postsynthetic metalation with [Ir(OMe)(cod)]2 (cod = 1,5-cyclooctadiene) generates heterogeneous precatalysts (1-Ir-x) that show excellent activity toward C–H borylation of arenes. This activity is dependent on both the catalyst site density and initial concentration of the borylating reagent. Homogeneous catalysts supported by analogous diphosphine ligands exhibit low catalytic activity, demonstrating the beneficial role of catalyst site isolation. Immobilization of dppmg-Ir catalysts at the Zr-based nodes of MOF-808 (2-P-Ir) and NU-1000 (3-P-Ir) results in materials with relatively poor catalytic activity toward C–H borylation of toluene, revealing the importance of the MOF support in catalyst design.
{"title":"MOF-Supported Diphosphine Ligands for Iridium-Catalyzed C–H Borylation of Arenes","authors":"Jordon S. Hilliard, Daniel J. Murray, Ankita Saha, Joshua E. Goldberger, Casey R. Wade","doi":"10.1021/acs.inorgchem.5c00523","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00523","url":null,"abstract":"Postsynthetic methods have been used to immobilize a carboxylate-functionalized diphosphine ligand, <i>N</i>,<i>N</i>-bis[(diphenylphosphino)methyl]glycinate (dppmg), in different metal–organic framework (MOF) supports. H(dppmg) reacts quantitatively with Zn–OH groups in MFU-4<i>l</i>-OH (<b>1</b>) to provide solid-state ligands (<b>1-H-</b><i><b>x</b></i>) with controllable diphosphine loadings. Postsynthetic metalation with [Ir(OMe)(cod)]<sub>2</sub> (cod = 1,5-cyclooctadiene) generates heterogeneous precatalysts (<b>1-Ir-</b><i><b>x</b></i>) that show excellent activity toward C–H borylation of arenes. This activity is dependent on both the catalyst site density and initial concentration of the borylating reagent. Homogeneous catalysts supported by analogous diphosphine ligands exhibit low catalytic activity, demonstrating the beneficial role of catalyst site isolation. Immobilization of dppmg-Ir catalysts at the Zr-based nodes of MOF-808 (<b>2-P-Ir</b>) and NU-1000 (<b>3-P-Ir</b>) results in materials with relatively poor catalytic activity toward C–H borylation of toluene, revealing the importance of the MOF support in catalyst design.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"58 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758745","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 : 2025-04-01DOI: 10.1021/acs.inorgchem.5c00062
Guilin Yin, Hui Shen, Xiu Gong
The photocatalytic reduction of carbon dioxide (CO2) into value-added chemical fuels is an effective strategy to address the fossil fuel crisis and global warming. Herein, a novel p–n junction composed of ZnTe nanoparticles and Cu-TCPP nanosheets was successfully constructed for efficient CO2-to-CO conversion. Structural and spectroscopic characterization confirmed the establishment of the p–n junction, which enhances charge separation and transfer. The ZnTe/Cu-TCPP composite exhibits enhanced photocatalytic CO2 reduction with CO as the primary product (120.53 μmol g–1), achieving 4.8- and 5.9-fold yield improvements over pristine ZnTe and Cu-TCPP, respectively. DFT calculations revealed a significantly enhanced CO2 adsorption energy (−0.549 eV) on the ZnTe/Cu-TCPP heterojunction, promoting the reaction. In situ DRIFTS analysis confirmed the presence of key intermediates (*COOH, *CH3, and *CO), validating their roles in the selective CO2-to-CO conversion pathways. A mechanistic study further elucidated the contribution of each component in the reaction process. Additionally, the ZnTe/Cu-TCPP photocatalyst exhibited excellent stability, demonstrating its potential for sustainable CO2 reduction.
{"title":"Ultrathin Cu-Based Porphyrin Metal–Organic Framework Modified with ZnTe Promotes Highly Selective Photocatalytic CO2 Reduction to CO","authors":"Guilin Yin, Hui Shen, Xiu Gong","doi":"10.1021/acs.inorgchem.5c00062","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00062","url":null,"abstract":"The photocatalytic reduction of carbon dioxide (CO<sub>2</sub>) into value-added chemical fuels is an effective strategy to address the fossil fuel crisis and global warming. Herein, a novel p–n junction composed of ZnTe nanoparticles and Cu-TCPP nanosheets was successfully constructed for efficient CO<sub>2</sub>-to-CO conversion. Structural and spectroscopic characterization confirmed the establishment of the p–n junction, which enhances charge separation and transfer. The ZnTe/Cu-TCPP composite exhibits enhanced photocatalytic CO<sub>2</sub> reduction with CO as the primary product (120.53 μmol g<sup>–1</sup>), achieving 4.8- and 5.9-fold yield improvements over pristine ZnTe and Cu-TCPP, respectively. DFT calculations revealed a significantly enhanced CO<sub>2</sub> adsorption energy (−0.549 eV) on the ZnTe/Cu-TCPP heterojunction, promoting the reaction. In situ DRIFTS analysis confirmed the presence of key intermediates (*COOH, *CH<sub>3</sub>, and *CO), validating their roles in the selective CO<sub>2</sub>-to-CO conversion pathways. A mechanistic study further elucidated the contribution of each component in the reaction process. Additionally, the ZnTe/Cu-TCPP photocatalyst exhibited excellent stability, demonstrating its potential for sustainable CO<sub>2</sub> reduction.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"19 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745295","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 : 2025-04-01DOI: 10.1021/acs.inorgchem.5c00450
Tobias B. Wassermann, Malte Sachs, Martin Etter, Florian Kraus
Single crystals of uranium trifluoride, UF3, were obtained for the first time via gas-phase crystallization, enabling the resolution of its crystal structure using single-crystal X-ray diffraction (SCXRD). The study reveals that UF3 crystallizes isotypic to the tysonite structure type in the trigonal space group P3̅c1 (No. 165, hP24, gfda) with lattice parameters a = 7.1510(2), c = 7.3230(4) Å, and V = 324.30(3) Å3, Z = 6, at T = 100 K, resolving long-standing structure model ambiguities from prior studies based on powder diffraction. Merohedral twinning complicates the diffraction data by simulating the wrong Laue class 6/mmm. Complementary quantum chemical calculations support the findings from this experiment, confirming its local energetic minimum. The inversion center in the crystal structure of UF3 precludes the previously predicted ferroelectricity.
{"title":"Single Crystal Structure Precludes Predicted Ferroelectricity of Uranium Trifluoride, UF3","authors":"Tobias B. Wassermann, Malte Sachs, Martin Etter, Florian Kraus","doi":"10.1021/acs.inorgchem.5c00450","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00450","url":null,"abstract":"Single crystals of uranium trifluoride, UF<sub>3</sub>, were obtained for the first time via gas-phase crystallization, enabling the resolution of its crystal structure using single-crystal X-ray diffraction (SCXRD). The study reveals that UF<sub>3</sub> crystallizes isotypic to the tysonite structure type in the trigonal space group <i>P</i>3̅<i>c</i>1 (No. 165, <i>hP</i>24, <i>gfda</i>) with lattice parameters <i>a</i> = 7.1510(2), <i>c</i> = 7.3230(4) Å, and <i>V</i> = 324.30(<sup>3</sup>) Å<sup>3</sup>, <i>Z</i> = 6, at <i>T</i> = 100 K, resolving long-standing structure model ambiguities from prior studies based on powder diffraction. Merohedral twinning complicates the diffraction data by simulating the wrong Laue class 6/<i>mmm</i>. Complementary quantum chemical calculations support the findings from this experiment, confirming its local energetic minimum. The inversion center in the crystal structure of UF<sub>3</sub> precludes the previously predicted ferroelectricity.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"33 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745358","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 : 2025-04-01DOI: 10.1021/acs.inorgchem.5c00412
Heiner Schmidt, Ramadan C. Oglou, Hüseyin O. Tunçer, Turkan G. U. Ghobadi, Şafak Tekir, Kubra N. O. Sertcelik, Abdelrahman Ibrahim, Lotta Döhler, Salih Özçubukçu, Stephan Kupfer, Benjamin Dietzek-Ivanšić, Ferdi Karadaş
The main obstacle in replacing well-established precious ruthenium photosensitizers with earth-abundant iron analogs is the short excited state lifetimes of metal-to-ligand charge transfer (MLCT) states due to relatively weak octahedral field splitting and relaxation via metal-centered (MC) states. In this study, we address the issue of short lifetime by using pentacyanoferrate(II) complexes and combat facile photodissociation by utilizing positively charged pyrazinium or bipyridinium ligands. We utilize femtosecond transient absorption spectroscopy alongside quantum chemical calculations to probe the excited states of three 4,4′-bipyridinium- or pyrazinium-based pentacyanoferrate(II) complexes. The 4,4′-bipyridinium-based complexes exhibit 3MLCT lifetimes of about 20 ps, while the pyrazinium-based complex exhibits a lifetime of 61 ps in an aqueous solution, setting a benchmark for cyanoferrate complexes. These results mark the foundation for a new group of easy-to-prepare iron photosensitizers that can be used for harvesting visible light.
{"title":"A Heterodox Approach for Designing Iron Photosensitizers: Pentacyanoferrate(II) Complexes with Monodentate Bipyridinium/Pyrazinium-Based Acceptor Ligands","authors":"Heiner Schmidt, Ramadan C. Oglou, Hüseyin O. Tunçer, Turkan G. U. Ghobadi, Şafak Tekir, Kubra N. O. Sertcelik, Abdelrahman Ibrahim, Lotta Döhler, Salih Özçubukçu, Stephan Kupfer, Benjamin Dietzek-Ivanšić, Ferdi Karadaş","doi":"10.1021/acs.inorgchem.5c00412","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00412","url":null,"abstract":"The main obstacle in replacing well-established precious ruthenium photosensitizers with earth-abundant iron analogs is the short excited state lifetimes of metal-to-ligand charge transfer (MLCT) states due to relatively weak octahedral field splitting and relaxation via metal-centered (MC) states. In this study, we address the issue of short lifetime by using pentacyanoferrate(II) complexes and combat facile photodissociation by utilizing positively charged pyrazinium or bipyridinium ligands. We utilize femtosecond transient absorption spectroscopy alongside quantum chemical calculations to probe the excited states of three 4,4′-bipyridinium- or pyrazinium-based pentacyanoferrate(II) complexes. The 4,4′-bipyridinium-based complexes exhibit <sup>3</sup>MLCT lifetimes of about 20 ps, while the pyrazinium-based complex exhibits a lifetime of 61 ps in an aqueous solution, setting a benchmark for cyanoferrate complexes. These results mark the foundation for a new group of easy-to-prepare iron photosensitizers that can be used for harvesting visible light.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"38 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745297","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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