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Atsumi M, Pyykkö P. 10-Valence-Electron C≡O and the 14-VE C≡Pt: Two Triple-Bonded Isoelectronic Families Differing by a dδ 4 Ring. Inorg Chem 2023; 62:21083-21090. [PMID: 38050990 PMCID: PMC10751794 DOI: 10.1021/acs.inorgchem.3c02889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 12/07/2023]
Abstract
10-VE A≡A' Diatomics, such as N≡N, C≡O, etc., have a strong σ2π4 triple bond plus a lone pair at each end. In our studies on 14-VE A≡B systems, such as C≡Pt, we find a similar bonding system plus a (5dδ)4 ring. Here, the A atom belongs to groups 13-17 and the B atom to groups 7-11. Also the BB' combinations, triatomics, such as PtCO or DsCO or uranyl, and longer chains, such as AuCN and [NC-Au-CN]-, are discussed. The δ ring directly contributes to nuclear quadrupole coupling constants, and DFT calculations using the BH and H or mPW1K functionals reproduce the experimental trends of the NQCC.
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Affiliation(s)
- Michiko Atsumi
- Hylleraas
Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, Norway. Postboks 1033, Oslo 0315, Norway
| | - Pekka Pyykkö
- Department
of Chemistry, Faculty of Science, University
of Helsinki, P.O.Box 55 (A. I. Virtasen aukio 1), Helsinki 00014, Finland
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2
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Wei Y, Liang Y, Luo R, Ouyang L. Recent advances of Cp*Ir complexes for transfer hydrogenation: focus on formic acid/formate as hydrogen donors. Org Biomol Chem 2023; 21:7484-7497. [PMID: 37661697 DOI: 10.1039/d3ob01034a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Transfer hydrogenation reactions offer synthetically powerful strategies to deliver various hydrogenated compounds with the advantages of efficiency, atom economy, and practicability. On one hand, formic acid/formate function as promising hydrogen sources owing to their readily obtainable, inexpensive, and easy to handle nature. On the other hand, Cp*Ir complexes show high activities in transfer hydrogenation. This review highlights progress achieved for transfer hydrogenation of CO, CC, and CN bonds of a variety of unsaturated substrates, as well as amides focusing on Cp*Ir complexes as catalysts and formic acid/formate as hydrogen sources.
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Affiliation(s)
- YiFei Wei
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China.
| | - Yuqiu Liang
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China.
| | - Renshi Luo
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China.
- College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, P. R. China.
| | - Lu Ouyang
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China.
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3
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Fielicke A. Probing the binding and activation of small molecules by gas-phase transition metal clusters via IR spectroscopy. Chem Soc Rev 2023. [PMID: 37162518 DOI: 10.1039/d2cs00104g] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Isolated transition metal clusters have been established as useful models for extended metal surfaces or deposited metal particles, to improve the understanding of their surface chemistry and of catalytic reactions. For this objective, an important milestone has been the development of experimental methods for the size-specific structural characterization of clusters and cluster complexes in the gas phase. This review focusses on the characterization of molecular ligands, their binding and activation by small transition metal clusters, using cluster-size specific infrared action spectroscopy. A comprehensive overview and a critical discussion of the experimental data available to date is provided, reaching from the initial results obtained using line-tuneable CO2 lasers to present-day studies applying infrared free electron lasers as well as other intense and broadly tuneable IR laser sources.
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Affiliation(s)
- André Fielicke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany.
- Institut für Optik und Atomare Physik, Technische Universität Berlin, 10623 Berlin, Germany
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4
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Cui ML, Zhang GS, Kang ZW, Zhang XY, Xie QF, Huang ML, Wang BQ, Yang DP. Iridium nanoclusters for highly efficient p-nitroaniline fluorescence sensor. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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5
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Ouyang L, Xia Y, Liao J, Miao R, Yang X, Luo R. Iridium Complex-Catalyzed Transfer Hydrogenation of N-Heteroarenes and Tentative Asymmetric Synthesis. ACS OMEGA 2021; 6:10415-10427. [PMID: 34056194 PMCID: PMC8153796 DOI: 10.1021/acsomega.1c00868] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 03/25/2021] [Indexed: 05/03/2023]
Abstract
An iridium-catalyzed transfer hydrogenation of N-heteroarenes to access a series of substituted 1,2,3,4-tetrahydroquinoline derivatives in excellent yields is disclosed. This transformation is distinguished with water-soluble and air-stable iridium complexes as the catalyst, formic acid as the hydrogen source, mild reaction conditions, and broad functional group compatibility. Most importantly, a tentative chiral N,N-chelated Cp*Ir(III) complex-catalyzed enantioselective transfer hydrogenation is also presented, affording chiral products in excellent yields and good enantioselectivities.
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6
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Stüker T, Hohmann T, Beckers H, Riedel S. Fluoro Nitrenoid Complexes FN=MF
2
(M=Co, Rh, Ir): Electronic Structure Dichotomy and Formation of Nitrido Fluorides N≡MF
3. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tony Stüker
- Anorganische Chemie Institut für Chemie und Biochemie Freie Universität Berlin 14195 Berlin Germany
| | - Thomas Hohmann
- Anorganische Chemie Institut für Chemie und Biochemie Freie Universität Berlin 14195 Berlin Germany
| | - Helmut Beckers
- Anorganische Chemie Institut für Chemie und Biochemie Freie Universität Berlin 14195 Berlin Germany
| | - Sebastian Riedel
- Anorganische Chemie Institut für Chemie und Biochemie Freie Universität Berlin 14195 Berlin Germany
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7
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Stüker T, Hohmann T, Beckers H, Riedel S. Fluoro Nitrenoid Complexes FN=MF 2 (M=Co, Rh, Ir): Electronic Structure Dichotomy and Formation of Nitrido Fluorides N≡MF 3. Angew Chem Int Ed Engl 2020; 59:23174-23179. [PMID: 32886443 PMCID: PMC7756499 DOI: 10.1002/anie.202010950] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/30/2020] [Indexed: 11/10/2022]
Abstract
The fluoronitrenoid metal complexes FNCoF2 and FNRhF2 as well as the first ternary RhVI and IrVI complexes NIrF3 and NRhF3 are described. They were obtained by the reaction of excited Group-9 metal atoms with NF3 and their IR spectra, isolated in solid rare gases (neon and argon), were recorded. Aided by the observed 14/15 N isotope shifts and quantum-chemical predictions, all four stretching fundamentals of the novel complexes were safely assigned. The F-N stretching frequencies of the fluoronitrenoid complexes FNCoF2 (1056.8 cm-1 ) and FNRhF2 (872.6 cm-1 ) are very different and their N-M bonds vary greatly. In FNCoF2 , the FN ligand is singly bonded to Co and bears considerable iminyl/nitrene radical character, while the N-Rh bond in FNRhF2 is a strong double bond with comparatively strong σ- and π-bonds. The anticipated rearrangement of FNCoF2 to the nitrido CoVI complex is predicted to be endothermic and was not observed.
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Affiliation(s)
- Tony Stüker
- Anorganische ChemieInstitut für Chemie und BiochemieFreie Universität Berlin14195BerlinGermany
| | - Thomas Hohmann
- Anorganische ChemieInstitut für Chemie und BiochemieFreie Universität Berlin14195BerlinGermany
| | - Helmut Beckers
- Anorganische ChemieInstitut für Chemie und BiochemieFreie Universität Berlin14195BerlinGermany
| | - Sebastian Riedel
- Anorganische ChemieInstitut für Chemie und BiochemieFreie Universität Berlin14195BerlinGermany
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8
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Ouyang L, Xia Y, Liao J, Luo R. One‐Pot Transfer Hydrogenation Reductive Amination of Aldehydes and Ketones by Iridium Complexes “on Water”. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lu Ouyang
- School of Pharmacy Gannan Medical University 341000 Ganzhou Jiangxi Province P. R. China
| | - Yanping Xia
- School of Pharmacy Gannan Medical University 341000 Ganzhou Jiangxi Province P. R. China
| | - Jianhua Liao
- School of Pharmacy Gannan Medical University 341000 Ganzhou Jiangxi Province P. R. China
| | - Renshi Luo
- School of Pharmacy Gannan Medical University 341000 Ganzhou Jiangxi Province P. R. China
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Stüker T, Beckers H, Riedel S. A Cornucopia of Iridium Nitrogen Compounds Produced from Laser-Ablated Iridium Atoms and Dinitrogen. Chemistry 2020; 26:7384-7394. [PMID: 31951304 PMCID: PMC7317413 DOI: 10.1002/chem.201905514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Indexed: 11/12/2022]
Abstract
The reaction of laser-ablated iridium atoms with dinitrogen molecules and nitrogen atoms yield several neutral and ionic iridium dinitrogen complexes such as Ir(N2 ), Ir(N2 )+ , Ir(N2 )2 , Ir(N2 )2 - , IrNNIr, as well as the nitrido complexes IrN, Ir(N)2 and IrIrN. These reaction products were deposited in solid neon, argon and nitrogen matrices and characterized by their infrared spectra. Assignments of vibrational bands are supported by ab initio and first principle calculations as well as 14/15 N isotope substitution experiments. The structural and electronic properties of the new dinitrogen and nitrido iridium complexes are discussed. While the formation of the elusive dinitrido complex Ir(N)2 was observed in a subsequent reaction of IrN with N atoms within the cryogenic solid matrices, the threefold coordinated iridium trinitride Ir(N)3 could not be observed so far.
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Affiliation(s)
- Tony Stüker
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195, Berlin, Germany
| | - Helmut Beckers
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195, Berlin, Germany
| | - Sebastian Riedel
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195, Berlin, Germany
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Wolański Ł, Domański MA, Grochala W, Szarek P. Pt X as the limit of high oxidation states in oxide–nitride species. Chem Commun (Camb) 2020; 56:13137-13140. [DOI: 10.1039/d0cc05361a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neutral PtO2N2 and PtNO3+ and PtN3O− ions are theoretically predicted to be sufficiently metastable to be prepared by a skillful experimenter in cryogenic conditions. PtNO3+ has a longer lifetime than the previously claimed PtO42+.
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Affiliation(s)
- Łukasz Wolański
- Centre of New Technologies
- University of Warsaw
- Warsaw 02-097
- Poland
| | - Mateusz A. Domański
- Centre of New Technologies
- University of Warsaw
- Warsaw 02-097
- Poland
- Faculty of Chemistry
| | | | - Paweł Szarek
- Centre of New Technologies
- University of Warsaw
- Warsaw 02-097
- Poland
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