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Scott JS, Schneider JE, Tewelde EG, Gardner JG, Anferov SW, Filatov AS, Anderson JS. Combining Donor Strength and Oxidative Stability in Scorpionates: A Strongly Donating Fluorinated Mesoionic Tris(imidazol-5-ylidene)borate Ligand. Inorg Chem 2023; 62:21224-21232. [PMID: 38051936 DOI: 10.1021/acs.inorgchem.3c03251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Strongly donating scorpionate ligands support the study of high-valent transition metal chemistry; however, their use is frequently limited by oxidative degradation. To address this concern, we report the synthesis of a tris(imidazol-5-ylidene)borate ligand featuring trifluoromethyl groups surrounding its coordination pocket. This ligand represents the first example of a chelating poly(imidazol-5-ylidene) mesoionic carbene ligand, a scaffold that is expected to be extremely donating. The {NiNO}10 complex of this ligand, as well as that of a previously reported strongly donating tris(imidazol-2-ylidene)borate, has been synthesized and characterized. This new ligand's strong donor properties, as measured by the υNO of its {NiNO}10 complex and natural bonding orbital second-order perturbative energy analysis, are at par with those of the well-studied alkyl-substituted tris(imidazol-2-ylidene)borates, which are known to effectively stabilize high-valent intermediates. The good donor properties of this ligand, despite the electron-withdrawing trifluoromethyl substituents, arise from the strongly donating imidazol-5-ylidene mesoionic carbene arms. These donor properties, when combined with the robustness of trifluoromethyl groups toward oxidative decomposition, suggest this ligand scaffold will be a useful platform in the study of oxidizing high-valent transition-metal species.
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Affiliation(s)
- Joseph S Scott
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Joseph E Schneider
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Eyob G Tewelde
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Joel G Gardner
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Sophie W Anferov
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Alexander S Filatov
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - John S Anderson
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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Maiola ML, Buss JA. Accessing Ta/Cu Architectures via Metal-Metal Salt Metatheses: Heterobimetallic C-H Bond Activation Affords μ-Hydrides. Angew Chem Int Ed Engl 2023; 62:e202311721. [PMID: 37831544 DOI: 10.1002/anie.202311721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 10/15/2023]
Abstract
We employ a metal-metal salt metathesis strategy to access low-valent tantalum-copper heterometallic architectures (Ta-μ2 -H2 -Cu and Ta-μ3 -H2 -Cu3 ) that emulate structural elements proposed for surface alloyed nanomaterials. Whereas cluster assembly with carbonylmetalates is well precedented, the use of the corresponding polyarene transition metal anions is underexplored, despite recognition of these highly reactive fragments as storable sources of atomic Mn- . Our application of this strategy provides structurally unique early-late bimetallic species. These complexes incorporate bridging hydride ligands during their syntheses, the origin of which is elucidated via detailed isotopic labelling studies. Modification of ancillary ligand sterics and electronics alters the mechanism of bimetallic assembly; a trinuclear complex resulting from dinuclear C-H activation is demonstrated as an intermediate en route to formation of the bimetallic. Further validating the promise of this rational, bottom-up approach, a unique tetranuclear species was synthesized, featuring a Ta centre bearing three Ta-Cu interactions.
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Affiliation(s)
- Michela L Maiola
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109, USA
| | - Joshua A Buss
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109, USA
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Wang M, Li L, Li Y, Shi X, Ren H, Sun Y, Liu K, Song W, Li H, Wang H, Han M, Wang X, Momo CD, Chen S, Liu L, Liang H. Entropy engineering of La-based perovskite for simultaneous photocatalytic CO 2 reduction and biomass oxidation. Chem Commun (Camb) 2023. [PMID: 37994160 DOI: 10.1039/d3cc04393b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Herein, the high-entropy perovskite, i.e. La(FeCoNiCrMn)O3, was prepared for simultaneous CO2 reduction and biomass upgrading. Based on the synergistic effect between the elements in the high-entropy material, an excellent CO evolution rate of 131.8 μmol g-1 h-1 and a xylonic acid yield of 63.9% were gained.
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Affiliation(s)
- Mengchen Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Liming Li
- Purification equipment research institute of CSSC, Handan 056027, China
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Li
- CETC Deqing Huaying Electronics Co., Ltd., China
| | - Xuxia Shi
- CETC Deqing Huaying Electronics Co., Ltd., China
| | - Hangxing Ren
- Purification equipment research institute of CSSC, Handan 056027, China
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuetao Sun
- Purification equipment research institute of CSSC, Handan 056027, China
| | - Kangning Liu
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Wei Song
- CETC Deqing Huaying Electronics Co., Ltd., China
| | - Huamin Li
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Haibin Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Mei Han
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Xi Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Christopher Dorma Momo
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
| | - Songhua Chen
- College of Chemistry and Material Science, Longyan University, Longyan 364012, China.
| | - Lihua Liu
- College of Innovation & Entrepreneurship, Shanghai Jianqiao University, Shanghai, P. R. China.
| | - Hongyan Liang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
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Grasruck A, Parla G, Lou L, Langer J, Neiß C, Herrera A, Frieß S, Görling A, Schmid G, Dorta R. Trapping of soluble, KCl-stabilized Cu(I) hydrides with CO 2 gives crystalline formates. Chem Commun (Camb) 2023; 59:13879-13882. [PMID: 37933531 DOI: 10.1039/d3cc03033d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Cu(I)-Hydrido complexes supported by dibenzo[b,f]azepinyl P-alkene hybrid ligands and stabilized by electrostatic interactions in a Cu-H⋯KCl⋯BR3 arrangement can be trapped with CO2 at low temperature to afford Cu(I)-formates. The complexes are isolable with and without a pendant BEt3 group and show strong Cu-O and weak B-O interactions.
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Affiliation(s)
- Alexander Grasruck
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
| | - Giorgio Parla
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
| | - Lisha Lou
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
| | - Jens Langer
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
| | - Christian Neiß
- Department Chemie und Pharmazie, Theoretische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Alberto Herrera
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
| | - Sybille Frieß
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
| | - Andreas Görling
- Department Chemie und Pharmazie, Theoretische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Günter Schmid
- Siemens Energy Global GmbH & Co. KG, New Energy Business - Technology & Products, Freyeslebenstraße 1, 91058 Erlangen, Germany
| | - Romano Dorta
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
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Davey SG. Copper clusters emulate the elementary. Nat Rev Chem 2023:10.1038/s41570-023-00519-5. [PMID: 37365265 DOI: 10.1038/s41570-023-00519-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
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