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Ding Z, Ji S, Zhao J, Zheng D. Combination of theoretical calculation and experiment to study the excited state proton transfer behavior of trifluoroacetamidoanthraquinone with different substitution positions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132084] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Geer AM, Julián A, López JA, Ciriano MA, Tejel C. Pseudo-tetrahedral Rhodium and Iridium Complexes: Catalytic Synthesis of E-Enynes. Chemistry 2018; 24:17545-17556. [PMID: 30207408 DOI: 10.1002/chem.201803878] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Indexed: 01/04/2023]
Abstract
The reactions of the rhodium(I) and iridium(I) complexes [M(PhBP3 )(C2 H4 )(NCMe)] (PhBP3 =PhB(CH2 PPh2 )3 - ) with alkynes have resulted in the synthesis of a new family of pseudo-tetrahedral complexes, [M(PhBP3 )(RC≡CR')] (M=Rh, Ir), which contain the alkyne as a four-electron donor. The reactions of these unusual compounds with two-electron donors (L=PMe3 , CNtBu) produced a change in the "donicity" of the alkyne from a 4e- to a 2e- donor to give five-coordinate complexes. These were the final products with the iridium complexes, whereas further reactions took place with the rhodium complexes. In particular, C(sp)-H bond activation of the alkyne occurred leading to hydrido alkynyl complexes. This process is essential for the further reactivity of the alkynes, and if the alkyne itself was used as reagent, E-enyne complexes were obtained. As a consequence of this chemistry, we show that the complex [Rh(PhBP3 )(C2 H4 )(NCMe)] is a very efficient pre-catalyst for the regioselective di- and trimerization of terminal alkynes to E-enynes and benzene derivatives, respectively. Interestingly, acetonitrile significantly enhanced the catalytic activity by facilitating the C(sp)-H bond activation step. A hydrometalation mechanism to account for these experimental observations is proposed.
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Affiliation(s)
- Ana M Geer
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Alejandro Julián
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - José A López
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Miguel A Ciriano
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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Troadec T, Wasano T, Lenk R, Baceiredo A, Saffon-Merceron N, Hashizume D, Saito Y, Nakata N, Branchadell V, Kato T. Donor-Stabilized Silylene/Phosphine-Supported Carbon(0) Center with High Electron Density. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702858] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Thibault Troadec
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | - Tatsuya Wasano
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | - Romaric Lenk
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | | | - Daisuke Hashizume
- Materials Characterization Support Unit; RIKEN Center for Emergent Matter Science (CEMS); Wako Saitama 351-0198 Japan
| | - Yosuke Saito
- Department of Chemistry, Graduate School of Science and Engineering Departament; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering Departament; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Vicenç Branchadell
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
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Troadec T, Wasano T, Lenk R, Baceiredo A, Saffon-Merceron N, Hashizume D, Saito Y, Nakata N, Branchadell V, Kato T. Donor-Stabilized Silylene/Phosphine-Supported Carbon(0) Center with High Electron Density. Angew Chem Int Ed Engl 2017; 56:6891-6895. [PMID: 28474846 DOI: 10.1002/anie.201702858] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 11/08/2022]
Abstract
An isolable donor-stabilized silavinylidene phosphorane was synthesized. This molecule, which can also be regarded as a new carbon(0) complex featuring a phosphine and a donor-stabilized silylene ligand, presents a central carbon atom with a remarkably high electron density (-1.82). Furthermore, the experimental electron-density study of this compound demonstrates the delocalization of the σ-lone pair at the central carbon atom toward the silicon center, a feature which is remarkably different from electronic situation of other bent-allene-type molecules. This result clearly demonstrates the powerful electron-donating ability of donor-stabilized silylene ligands, as well as their excellent electron-acceptor properties.
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Affiliation(s)
- Thibault Troadec
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Tatsuya Wasano
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Romaric Lenk
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Nathalie Saffon-Merceron
- Université de Toulouse, UPS, and CNRS, ICT FR2599, 118 route de Narbonne, 31062, Toulouse, France
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, 351-0198, Japan
| | - Yosuke Saito
- Department of Chemistry, Graduate School of Science and Engineering Departament, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering Departament, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
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A topological analysis of the bonding in [M2(CO)10] and [M3(μ-H)3(CO)12] complexes (M = Mn, Tc, Re). Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1821-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Parker KDJ, Fryzuk MD. Carbon–Carbon Bond Forming Reactions with Tantalum Diamidophosphine Complexes That Incorporate Alkyne Ligands. Organometallics 2014. [DOI: 10.1021/om500775c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kyle D. J. Parker
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
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Geer AM, Julián A, López JA, Ciriano MA, Tejel C. Pseudotetrahedral Rhodium(I) Complexes. Chemistry 2014; 20:2732-6. [DOI: 10.1002/chem.201304569] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Indexed: 11/06/2022]
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