1
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Govindarajan R, Vardhanapu PK, Fayzullin RR, Khaskin E, Khusnutdinova JR. Facile methyl group transfer from Pt II to gallium and indium. Chem Commun (Camb) 2024; 60:7216-7219. [PMID: 38910581 DOI: 10.1039/d4cc02112f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Facile transmetalation is observed from a d8 metal, platinum(II), to indium and gallium leading to the extrusion of methylated gallate and indate anions representing a rare case of the "reverse" transmetalation from a d8 metal to a main group metal. The Pt-Ga and Pt-In bonding in the bimetallic complexes was analyzed through bosonic and fermionic potentials, QTAIM, and NBO.
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Affiliation(s)
- R Govindarajan
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, 904-0495, Okinawa, Japan.
| | - Pavan K Vardhanapu
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, 904-0495, Okinawa, Japan.
| | - Robert R Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan 420088, Russian Federation
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, 904-0495, Okinawa, Japan.
| | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, 904-0495, Okinawa, Japan.
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2
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Green KA, Honeycutt AP, Ciccone SR, Grice KA, Baur A, Petersen JL, Hoover JM. A Redox Transmetalation Step in Nickel-Catalyzed C-C Coupling Reactions. ACS Catal 2023; 13:6375-6381. [PMID: 37180967 PMCID: PMC10167653 DOI: 10.1021/acscatal.2c06015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/11/2023] [Indexed: 05/16/2023]
Abstract
Ni-catalyzed C-H functionalization reactions are becoming efficient routes to access a variety of functionalized arenes, yet the mechanisms of these catalytic C-C coupling reactions are not well understood. Here, we report the catalytic and stoichiometric arylation reactions of a nickel(II) metallacycle. Treatment of this species with silver(I)-aryl complexes results in facile arylation, consistent with a redox transmetalation step. Additionally, treatment with electrophilic coupling partners generates C-C and C-S bonds. We anticipate that this redox transmetalation step may be relevant to other coupling reactions that employ silver salts as additives.
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Affiliation(s)
- Kerry-Ann Green
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Aaron P. Honeycutt
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Sierra R. Ciccone
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Kyle A. Grice
- Department
of Chemistry and Biochemistry, DePaul University, Chicago, Illinois 60614, United States
| | - Andreas Baur
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Jeffrey L. Petersen
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Jessica M. Hoover
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
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3
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Govindarajan R, Deolka S, Khusnutdinova JR. Heterometallic bond activation enabled by unsymmetrical ligand scaffolds: bridging the opposites. Chem Sci 2022; 13:14008-14031. [PMID: 36540828 PMCID: PMC9728565 DOI: 10.1039/d2sc04263k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/27/2022] [Indexed: 08/19/2023] Open
Abstract
Heterobi- and multimetallic complexes providing close proximity between several metal centers serve as active species in artificial and enzymatic catalysis, and in model systems, showing unique modes of metal-metal cooperative bond activation. Through the rational design of well-defined, unsymmetrical ligand scaffolds, we create a convenient approach to support the assembly of heterometallic species in a well-defined and site-specific manner, preventing them from scrambling and dissociation. In this perspective, we will outline general strategies for the design of unsymmetrical ligands to support heterobi- and multimetallic complexes that show reactivity in various types of heterometallic cooperative bond activation.
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Affiliation(s)
- R Govindarajan
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Shubham Deolka
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
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4
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Navarro M, Moreno JJ, Pérez-Jiménez M, Campos J. Small molecule activation with bimetallic systems: a landscape of cooperative reactivity. Chem Commun (Camb) 2022; 58:11220-11235. [PMID: 36128973 PMCID: PMC9536487 DOI: 10.1039/d2cc04296g] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
Abstract
There is growing interest in the design of bimetallic cooperative complexes, which have emerged due to their potential for bond activation and catalysis, a feature widely exploited by nature in metalloenzymes, and also in the field of heterogeneous catalysis. Herein, we discuss the widespread opportunities derived from combining two metals in close proximity, ranging from systems containing multiple M-M bonds to others in which bimetallic cooperation occurs even in the absence of M⋯M interactions. The choice of metal pairs is crucial for the reactivity of the resulting complexes. In this context, we describe the prospects of combining not only transition metals but also those of the main group series, which offer additional avenues for cooperative pathways and reaction discovery. Emphasis is given to mechanisms by which bond activation occurs across bimetallic structures, which is ascribed to the precise synergy between the two metal atoms. The results discussed herein indicate a future landscape full of possibilities within our reach, where we anticipate that bimetallic synergism will have an important impact in the design of more efficient catalytic processes and the discovery of new catalytic transformations.
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Affiliation(s)
- Miquel Navarro
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Juan José Moreno
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
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5
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Govindarajan R, Deolka S, Khaskin E, Fayzullin RR, Pal S, Vasylevskyi S, Khusnutdinova JR. H 2 , B-H, and Si-H Bond Activation and Facile Protonolysis Driven by Pt-Base Metal Cooperation. Chemistry 2022; 28:e202201639. [PMID: 35676220 DOI: 10.1002/chem.202201639] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Indexed: 01/01/2023]
Abstract
We report a series of heterobimetallic Pt/Zn and Pt/Ca complexes to study the effect of proximity of a dicationic base metal on the organometallic Pt species. Varying degrees of Pt⋅⋅⋅Zn and Zn interaction with the bridging Me group are achieved, showcasing snapshots of a hypothetical process of retrotransmetalation from Pt to Zn. In contrast, only weak interactions were observed for Ca with a Pt-bound Me group. Activation of H2 , B-H and Si-H bonds leads to the formation of hydride-bridged Pt-H-Zn complexes, which is not observed in the absence of Zn, pointing out the importance of metal-metal cooperation. Reactivity of PtMe2 /M2+ with terminal acetylene, water and methanol is also studied, leading to facile protonation of one of the Me groups at the Pt center only when Zn is present. This study sheds light on various ways in which the presence of a 2+ metal cation significantly affects the reactivity of a common organoplatinum complex.
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Affiliation(s)
- Ramadoss Govindarajan
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Shubham Deolka
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Robert R Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan, 420088, Russian Federation
| | - Shrinwantu Pal
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Serhii Vasylevskyi
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
| | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan
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6
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Pérez-Jiménez M, Campos J, Jover J, Álvarez S, Carmona E. Coordination of E–C Bonds (E = Zn, Mg, Al) and the Zn–H Bonds of (C 5Me 5)ZnH and (C 5Me 5)ZnZnH across a Quadruply Bonded Dimolybdenum Dihydride Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Jesús Jover
- Department de Química Inorgànica i Orgànica, Secció de Química Inorgànica and Institut de Química Teòrica i Computacional Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Santiago Álvarez
- Department de Química Inorgànica i Orgànica, Secció de Química Inorgànica and Institut de Química Teòrica i Computacional Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
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7
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Oeschger RJ, Bissig R, Chen P. Model Compounds for Intermediates and Transition States in Sonogashira and Negishi Coupling: d8- d10 Bonds in Large Heterobimetallic Complexes Are Weaker than Computational Chemistry Predicts. J Am Chem Soc 2022; 144:10330-10343. [PMID: 35639626 DOI: 10.1021/jacs.2c01641] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an experimental study, with accompanying DFT calculations, on a series of heterobimetallic complexes with Pd(II) and Cu(I), Ag(I), or Au(I). The isolable pincer complexes are models for the intermediates and transition state for the transmetalation step in Sonogashira and Negishi coupling reactions, among which, according to the DFT calculations, only the transition state has the two metal centers within bonding distance. Furthermore, we report a substituted version of an analogous heterobimetallic complex in which a competing dissociation sets an upper-bound on the strength of the d8-d10 metal-metal bond. Analysis of the structures in the solid state and in solution, and the competitive dissociation experiment in the gas phase, indicate that the dispersion-corrected DFT method used in the study appears to overestimate the strength of the metal-metal interaction, thus distorting the shape of the computed potential energy surface systematically for transmetalation.
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Affiliation(s)
- Raphael J Oeschger
- Laboratorium für Organische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Raphael Bissig
- Laboratorium für Organische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Peter Chen
- Laboratorium für Organische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland
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8
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Cai Y, Jiang S, Dong L, Xu X. Synthesis and reactivity of heterometallic complexes containing Mg- or Zn-metalloligands. Dalton Trans 2022; 51:3817-3827. [PMID: 35107467 DOI: 10.1039/d1dt04117g] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Heteronuclear metal complexes comprising main group metals and transition metals have attracted widespread attention from researchers due to their applications in stoichiometric and catalytic activation of small molecules with possible cooperative effects. Herein, the advances of heterometallic complexes containing Mg- or Zn-metalloligands over the past ten years are reviewed. They consist of two parts: (i) synthetic approaches to heterometallic complexes. Only a brief discussion is made on the different Mg/Zn precursors since they have been summarized before. (ii) Stoichiometric and catalytic reactivities of heterometallic complexes containing Mg/Zn metalloligands. The exploration of the cooperative catalytic reaction of heterometallic complexes is still in its infancy, promising but challenging; thus, further investigations are required in the future.
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Affiliation(s)
- Yanping Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Shengjie Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Liqiu Dong
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - Xin Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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9
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Pawlȩdzio S, Malinska M, Kleemiss F, Grabowsky S, Woźniak K. Aurophilic Interactions Studied by Quantum Crystallography. Inorg Chem 2022; 61:4235-4239. [PMID: 35230099 PMCID: PMC8924918 DOI: 10.1021/acs.inorgchem.1c03333] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
This is the first
use of a wave-function-based crystallographic
method to characterize aurophilic interactions from X-ray diffraction
data. Theoretical calculations previously suggested the importance
of electron correlation and dispersion forces, but no influence of
relativistic corrections to the Au...Au interaction energy was found.
In this study, we confirm the importance of relativistic corrections
in the characterization of aurophilic interactions in addition to
electron correlation and dispersion. Hirshfeld
atom refinement was used to characterize aurophilic
interactions from X-ray diffraction data. An intermediate closed-shell
type of aurophilic interaction with some features of covalency was
identified when both electron correlation and relativistic corrections
were applied. Relativistic correction changes the electron density
distribution more than electron correlation. Relativistic effects
strongly dominate the metal core region also in the direction of the
noncovalent interactions and all of the valence and bonding regions
with regard to the Au···Au interaction.
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Affiliation(s)
- Sylwia Pawlȩdzio
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Maura Malinska
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Florian Kleemiss
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.,Faculty for Chemistry und Pharmacy, University of Regensburg, Universitätsstrasse 31, 93053 Regensburg, Germany
| | - Simon Grabowsky
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
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10
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Liu Y, Taylor LJ, Argent SP, McMaster J, Kays DL. Group 11 m-Terphenyl Complexes Featuring Metallophilic Interactions. Inorg Chem 2021; 60:10114-10123. [PMID: 34197113 DOI: 10.1021/acs.inorgchem.0c03623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of group 11 m-terphenyl complexes have been synthesized via a metathesis reaction from the iron(II) complexes (2,6-Mes2C6H3)2Fe and (2,6-Xyl2C6H3)2Fe (Mes = 2,4,6-Me3C6H2; Xyl = 2,6-Me2C6H3). [2,6-Mes2C6H3M]2 (1, M = Cu; 2, M = Ag; 6, M = Au) and [2,6-Xyl2C6H3M]2 (3, M = Cu; 4, M = Ag) are dimeric in the solid state, although different geometries are observed depending on the ligand. These complexes feature short metal-metal distances in the expected range for metallophilic interactions. While 1-4 are readily isolated using this metathetical route, the gold complex 6 is unstable in solution at ambient temperatures and has only been obtained in low yield from the decomposition of (2,6-Mes2C6H3)Au·SMe2 (5). NMR spectroscopic measurements, including diffusion-ordered spectroscopy, suggest that 1-4 remain dimeric in a benzene-d6 solution. The metal-metal interactions have been examined computationally using the Quantum Theory of Atoms in Molecules and by an energy decomposition analysis employing natural orbitals for chemical valence.
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Affiliation(s)
- Yu Liu
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Laurence J Taylor
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Stephen P Argent
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Jonathan McMaster
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Deborah L Kays
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K
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11
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Hidalgo N, Romero-Pérez C, Maya C, Fernández I, Campos J. Reactivity of [Pt(P t Bu 3) 2] with Zinc(I/II) Compounds: Bimetallic Adducts, Zn-Zn Bond Cleavage, and Cooperative Reactivity. Organometallics 2021; 40:1113-1119. [PMID: 34602699 PMCID: PMC8479860 DOI: 10.1021/acs.organomet.1c00088] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Indexed: 11/30/2022]
Abstract
Metal-only Lewis pairs (MOLPs) based on zinc electrophiles are particularly interesting due to their relevance to Negishi cross-coupling reactions. Zinc-based ligands in bimetallic complexes also render unique reactivity to the transition metals at which they are bound. Here we explore the use of sterically hindered [Pt(P t Bu3)2] (1) to access Pt/Zn bimetallic complexes. Compounds [(P t Bu3)2Pt → Zn(C6F5)2] (2) and [Pt(ZnCp*)6] (3) (Cp* = pentamethylcyclopentadienyl) were isolated by reactions with Zn(C6F5)2 and [Zn2Cp*2], respectively. We also disclose the cooperative reactivity of 1/ZnX2 pairs (X = Cl, Br, I, and OTf) toward water and dihydrogen, which can be understood in terms of bimetallic frustration.
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Affiliation(s)
- Nereida Hidalgo
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
| | - Carlos Romero-Pérez
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
| | - Celia Maya
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica I and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Facultad de Ciencias
Químicas, Universidad Complutense
de Madrid, Madrid 28040, Spain
| | - Jesús Campos
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
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12
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Garçon M, Mun NW, White AJP, Crimmin MR. Palladium-Catalysed C-H Bond Zincation of Arenes: Scope, Mechanism, and the Role of Heterometallic Intermediates. Angew Chem Int Ed Engl 2021; 60:6145-6153. [PMID: 33275830 DOI: 10.1002/anie.202014960] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Indexed: 11/06/2022]
Abstract
Catalytic methods that transform C-H bonds into C-X bonds are of paramount importance in synthesis. A particular focus has been the generation of organoboranes, organosilanes and organostannanes from simple hydrocarbons (X=B, Si, Sn). Despite the importance of organozinc compounds (X=Zn), their synthesis by the catalytic functionalisation of C-H bonds remains unknown. Herein, we show that a palladium catalyst and zinc hydride reagent can be used to transform C-H bonds into C-Zn bonds. The new catalytic C-H zincation protocol has been applied to a variety of arenes-including fluoroarenes, heteroarenes, and benzene-with high chemo- and regioselectivity. A mechanistic study shows that heterometallic Pd-Zn complexes play a key role in catalysis. The conclusions of this work are twofold; the first is that valuable organozinc compounds are finally accessible by catalytic C-H functionalisation, the second is that heterometallic complexes are intimately involved in bond-making and bond-breaking steps of C-H functionalisation.
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Affiliation(s)
- Martí Garçon
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
| | - Nicolette Wee Mun
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
| | - Andrew J P White
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
| | - Mark R Crimmin
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
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13
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Deciphering the dichotomy exerted by Zn(ii) in the catalytic sp2 C–O bond functionalization of aryl esters at the molecular level. Nat Catal 2021. [DOI: 10.1038/s41929-020-00560-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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14
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Garçon M, Mun NW, White AJP, Crimmin MR. Palladium‐Catalysed C−H Bond Zincation of Arenes: Scope, Mechanism, and the Role of Heterometallic Intermediates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Martí Garçon
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
| | - Nicolette Wee Mun
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
| | - Andrew J. P. White
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
| | - Mark R. Crimmin
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
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15
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Bajo S, Alférez MG, Alcaide MM, López‐Serrano J, Campos J. Metal-only Lewis Pairs of Rhodium with s, p and d-Block Metals. Chemistry 2020; 26:16833-16845. [PMID: 32722855 PMCID: PMC7756578 DOI: 10.1002/chem.202003167] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/27/2020] [Indexed: 12/22/2022]
Abstract
Metal-only Lewis pairs (MOLPs) in which the two metal fragments are solely connected by a dative M→M bond represent privileged architectures to acquire fundamental understanding of bimetallic bonding. This has important implications in many catalytic processes or supramolecular systems that rely on synergistic effects between two metals. However, a systematic experimental/computational approach on a well-defined class of compounds is lacking. Here we report a family of MOLPs constructed around the RhI precursor [(η5 -C5 Me5 )Rh(PMe3 )2 ] (1) with a series of s, p and d-block metals, mostly from the main group elements, and investigate their bonding by computational means. Among the new MOLPs, we have structurally characterized those formed by dative bonding between 1 and MgMeBr, AlMe3 , GeCl2 , SnCl2 , ZnMe2 and Zn(C6 F5 )2, as well as spectroscopically identified the ones resulting from coordination to MBArF (M=Na, Li; BArF - =[B(C6 H2 -3,5-(CF3 )2 )4 ]- ) and CuCl. Some of these compounds represent unique examples of bimetallic structures, such as the first unambiguous cases of Rh→Mg dative bonding or base-free rhodium bound germylene and stannylene species. Multinuclear NMR spectroscopy, including 103 Rh NMR, is used to probe the formation of Rh→M bonds. A comprehensive theoretical analysis of those provides clear trends. As anticipated, greater bond covalency is found for the more electronegative acids, whereas ionic character dominates for the least electronegative nuclei, though some degree of electron sharing is identified in all cases.
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Affiliation(s)
- Sonia Bajo
- Instituto de Investigaciones Químicas (IIQ)Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Consejo Superior de Investigaciones Científicas (CSIC)University of SevillaAvenida Américo Vespucio 4941092SevillaSpain
| | - Macarena G. Alférez
- Instituto de Investigaciones Químicas (IIQ)Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Consejo Superior de Investigaciones Científicas (CSIC)University of SevillaAvenida Américo Vespucio 4941092SevillaSpain
| | - María M. Alcaide
- Instituto de Investigaciones Químicas (IIQ)Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Consejo Superior de Investigaciones Científicas (CSIC)University of SevillaAvenida Américo Vespucio 4941092SevillaSpain
| | - Joaquín López‐Serrano
- Instituto de Investigaciones Químicas (IIQ)Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Consejo Superior de Investigaciones Científicas (CSIC)University of SevillaAvenida Américo Vespucio 4941092SevillaSpain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ)Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Consejo Superior de Investigaciones Científicas (CSIC)University of SevillaAvenida Américo Vespucio 4941092SevillaSpain
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16
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Wang MY, Chen L, Li BW, Liu JY. DFT study on the mechanism of bimetallic Pd-Zn-catalyzed cycloaddition of alkynyl aryl ethers with internal alkynes. Dalton Trans 2020; 49:2914-2923. [PMID: 32068227 DOI: 10.1039/c9dt04362d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The reaction mechanism of bimetallic Pd-Zn-catalyzed cycloaddition of alkynyl aryl ethers with internal alkynes has been studied theoretically. Besides cycloaddition reaction, the dimerization of alkynyl aryl ethers was also considered. Both C6H5OC[triple bond, length as m-dash]CSiiPr3 and C6H5OC[triple bond, length as m-dash]CSiMe3 were chosen as the substrates. The reactions involve C-H activation of the substrate, acetic acid rotation, H transformation, MeC[triple bond, length as m-dash]CMe or substrate insertion into the Pd-phenyl bond and reductive elimination steps. It is found that cycloaddition is favored for C6H5OC[triple bond, length as m-dash]CSiiPr3, while dimerization is preferred for C6H5OC[triple bond, length as m-dash]CSiMe3, because the steric repulsion between two bulky SiiPr3 groups is relatively large and the steric repulsion between two small SiMe3 groups is relatively small. In addition, besides C6H5OC[triple bond, length as m-dash]CSiiPr3, four other substrates C6H5CH2C[triple bond, length as m-dash]CSiiPr3, C6H5C(O)C[triple bond, length as m-dash]CSiiPr3, C6H5SC[triple bond, length as m-dash]CSiiPr3 and C6H5N(H)C[triple bond, length as m-dash]CSiiPr3 have been calculated as the substrates for cycloaddition reaction with MeC[triple bond, length as m-dash]CMe. Among the five substrates, C6H5OC[triple bond, length as m-dash]CSiiPr3 has the lowest energy barrier (29.9 kcal mol-1), consistent with the experimental observation that C6H5OC[triple bond, length as m-dash]CSiiPr3 is the appropriate substrate for successful cycloaddition.
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Affiliation(s)
- Mei-Yan Wang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Li Chen
- Department of Oral Radiology, School and Hospital of Stomatology, Jilin University, Changchun 130021, People's Republic of China
| | - Bing-Wen Li
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Jing-Yao Liu
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.
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17
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Jurt P, Salnikov OG, Gianetti TL, Chukanov NV, Baker MG, Le Corre G, Borger JE, Verel R, Gauthier S, Fuhr O, Kovtunov KV, Fedorov A, Fenske D, Koptyug IV, Grützmacher H. Low-valent homobimetallic Rh complexes: influence of ligands on the structure and the intramolecular reactivity of Rh-H intermediates. Chem Sci 2019; 10:7937-7945. [PMID: 31673319 PMCID: PMC6788510 DOI: 10.1039/c9sc02683e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 07/05/2019] [Indexed: 01/02/2023] Open
Abstract
Supporting two metal binding sites by a tailored polydentate trop-based (trop = 5H-dibenzo[a,d]cyclohepten-5-yl) ligand yields highly unsymmetric homobimetallic rhodium(i) complexes. These were studied as models for Rh/C hydrogenation catalysts.
Supporting two metal binding sites by a tailored polydentate trop-based (trop = 5H-dibenzo[a,d]cyclohepten-5-yl) ligand yields highly unsymmetric homobimetallic rhodium(i) complexes. Their reaction with hydrogen rapidly forms Rh hydrides that undergo an intramolecular semihydrogenation of two C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C bonds of the trop ligand. This reaction is chemoselective and converts C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C bonds to a bridging carbene and an olefinic ligand in the first and the second semihydrogenation steps, respectively. Stabilization by a bridging diphosphine ligand allows characterization of a Rh hydride species by advanced NMR techniques and may provide insight into possible elementary steps of H2 activation by interfacial sites of heterogeneous Rh/C catalysts.
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Affiliation(s)
- Pascal Jurt
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland .
| | - Oleg G Salnikov
- International Tomography Center , SB RAS , Novosibirsk , Russia.,Novosibirsk State University , Novosibirsk , Russia
| | - Thomas L Gianetti
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland . .,Department of Chemistry and Biochemistry , University of Arizona , Tucson , USA .
| | - Nikita V Chukanov
- International Tomography Center , SB RAS , Novosibirsk , Russia.,Novosibirsk State University , Novosibirsk , Russia
| | - Matthew G Baker
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland .
| | - Grégoire Le Corre
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland .
| | - Jaap E Borger
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland .
| | - Rene Verel
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland .
| | | | - Olaf Fuhr
- Institute of Nanotechnology , Karlsruhe Institute of Technology (KIT) , Eggenstein-Leopoldshafen , Germany
| | - Kirill V Kovtunov
- International Tomography Center , SB RAS , Novosibirsk , Russia.,Novosibirsk State University , Novosibirsk , Russia
| | - Alexey Fedorov
- Department of Chemistry and Applied Biosciences , ETH Zürich , Switzerland . .,Department of Mechanical and Process Engineering , ETH Zürich , Switzerland
| | - Dieter Fenske
- Institute of Nanotechnology , Karlsruhe Institute of Technology (KIT) , Eggenstein-Leopoldshafen , Germany
| | - Igor V Koptyug
- International Tomography Center , SB RAS , Novosibirsk , Russia.,Novosibirsk State University , Novosibirsk , Russia
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18
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Yamaguchi T, Yoshiya K. Coordination Isomers of Trinuclear Pt 2Hg Complex That Differ in Type of Metal-Metal Bond. Inorg Chem 2019; 58:9548-9552. [PMID: 31313571 DOI: 10.1021/acs.inorgchem.9b00978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New type isomers that differ in metal-metal bond type are isolated. One is the Pt-Hg-Pt complex, which has two metal-metal covalent bonds, Pt-Hg = 2.5459(8) and 2.5483(7) Å, and the other is the Pt→Hg-Pt complex, which has one metal-metal covalent bond, Pt-Hg = 2.5744(6) Å, and one metal-metal dative bond, Pt→Hg = 2.6635(7) Å.
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Affiliation(s)
- Tadashi Yamaguchi
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering , Waseda University , Tokyo 169-8555 , Japan
| | - Kohei Yoshiya
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering , Waseda University , Tokyo 169-8555 , Japan
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19
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Oi M, Takita R, Kanazawa J, Muranaka A, Wang C, Uchiyama M. Organocopper cross-coupling reaction for C-C bond formation on highly sterically hindered structures. Chem Sci 2019; 10:6107-6112. [PMID: 31360416 PMCID: PMC6585593 DOI: 10.1039/c9sc00891h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/09/2019] [Indexed: 12/13/2022] Open
Abstract
We describe a powerful, broadly applicable cross-coupling protocol that enables carbon-carbon bond formation at highly sterically hindered carbon centers (both sp2 and sp3) by employing organocopper reagents under palladium catalysis. Experimental studies and theoretical calculations indicated that the key to the unique reactivity of copper is the relatively low activation energy of the compact transmetalation transition state, due to Cu(i)-Pd(ii) interaction, which is associated with small values of deformation energy of the reactants. This reaction is applicable to a variety of bulky substrates, including compounds inert to previous cross-coupling chemistry and has high functional group tolerance.
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Affiliation(s)
- Miku Oi
- Graduate School of Pharmaceutical Sciences , University of Tokyo , Hongo 7-3-1, Bunkyo-ku , Tokyo , Japan . ;
- Advanced Elements Chemistry Research Team , RIKEN Center for Sustainable Resource Science , Elements Chemistry Laboratory , RIKEN , Wako-shi , Saitama 351-0198 , Japan
| | - Ryo Takita
- Graduate School of Pharmaceutical Sciences , University of Tokyo , Hongo 7-3-1, Bunkyo-ku , Tokyo , Japan . ;
- Advanced Elements Chemistry Research Team , RIKEN Center for Sustainable Resource Science , Elements Chemistry Laboratory , RIKEN , Wako-shi , Saitama 351-0198 , Japan
| | - Junichiro Kanazawa
- Graduate School of Pharmaceutical Sciences , University of Tokyo , Hongo 7-3-1, Bunkyo-ku , Tokyo , Japan . ;
| | - Atsuya Muranaka
- Advanced Elements Chemistry Research Team , RIKEN Center for Sustainable Resource Science , Elements Chemistry Laboratory , RIKEN , Wako-shi , Saitama 351-0198 , Japan
| | - Chao Wang
- Graduate School of Pharmaceutical Sciences , University of Tokyo , Hongo 7-3-1, Bunkyo-ku , Tokyo , Japan . ;
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences , University of Tokyo , Hongo 7-3-1, Bunkyo-ku , Tokyo , Japan . ;
- Advanced Elements Chemistry Research Team , RIKEN Center for Sustainable Resource Science , Elements Chemistry Laboratory , RIKEN , Wako-shi , Saitama 351-0198 , Japan
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20
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Rajabi S, Jamali S, Naseri S, Jamjah A, Kia R, Samouei H, Mastrorilli P, Shahsavari HR, Raithby PR. Pt–M (M = Au and Tl) Dative Bonds Using Bis(cyclometalated)platinum(II) Complexes. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00907] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sheida Rajabi
- Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran 1458889694, Iran
| | - Sirous Jamali
- Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran 1458889694, Iran
| | - Soroosh Naseri
- Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran 1458889694, Iran
| | - Ali Jamjah
- Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran 1458889694, Iran
| | - Reza Kia
- Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran 1458889694, Iran
| | - Hamidreza Samouei
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | | | - Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Paul R. Raithby
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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21
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Gair JJ, Qiu Y, Khade RL, Chan NH, Filatov AS, Zhang Y, Lewis JC. Synthesis, Characterization, and Theoretical Investigation of a Transition State Analogue for Proton Transfer during C–H Activation by a Rhodium-Pincer Complex. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00887] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Joseph J. Gair
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Yehao Qiu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Rahul L. Khade
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Natalie H. Chan
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Alexander S. Filatov
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Yong Zhang
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Jared C. Lewis
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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22
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Campillo D, Belío Ú, Martín A. New Pt→M (M = Ag or Tl) complexes based on anionic cyclometalated Pt(ii) complexes. Dalton Trans 2019; 48:3270-3283. [PMID: 30776043 DOI: 10.1039/c9dt00121b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anionic cyclometalated complexes (NBu4)[Pt(CNC)X] (X = Cl (1), CN (2), or S-2py (pyridine-2-thiolate) (3); -CNC- = 2,6-di(phen-2-ide)-pyridine) have been used as precursors in the synthesis of heteropolynuclear Pt-Ag or Pt-Tl complexes containing donor-acceptor metal-metal bonds. Their reaction with AgClO4 or [Ag(OClO3)(PPh3)] produces complexes in which the nuclearity and structure seem to be determined by the ability of the ligand X to form bridges between the metals. Thus, the characteristic linear bridging of the cyano ligand leads to the formation of an octanuclear [{Pt(CNC)(μ-CN)}4Ag4] (4) or tetranuclear [{Pt(CNC)(μ-CN)}2{Ag(PPh3)}2] (6) complex, with CN bridges between different "Pt-Ag" units. However, the S-2py ligand can act as a bridge between Pt and Ag of the same "Pt-Ag" unit, giving rise to the complex [{Pt(CNC)(S-2py)}2Ag2]·CH2Cl2 (5). On the other hand, the reaction of 1-3 with TlPF6 yields the complexes [PtTl(CNC)Cl] (7), [PtTl(CNC)(CN)] (8), and (NBu4)[{Pt(CNC)(S-2py)}2Tl] (9), while with [Tl(S-2py)], [PtTl(CNC)(S-2py)] (10) is obtained. The structures of all these Pt-Tl complexes show great variation, with several geometric arrangements which sometime co-exist in the same crystal structure: discrete Pt-Tl, Pt-Tl-Pt and Pt-Tl-Pt-Tl units, as well as infinite Pt-Tl-Pt-Tl chains. This variability could be due to the lability of the Pt-Tl bonds and the ability of the thallium center to establish secondary interactions with donor atoms or aromatic π electron density from neighboring moieties.
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Affiliation(s)
- David Campillo
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica, Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain.
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23
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Steinhoff P, Paul M, Schroers JP, Tauchert ME. Highly efficient palladium-catalysed carbon dioxide hydrosilylation employing PMP ligands. Dalton Trans 2019; 48:1017-1022. [DOI: 10.1039/c8dt03777a] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A series of zero-valent Pd complexes featuring PMP ligands (M = LiI, CuI, ZnII) is reported. An excellent activity in chemoselective CO2 hydrosilylation producing silyl formate is observed (TOF1/2 = 3000 h−1).
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Affiliation(s)
- Patrick Steinhoff
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Melanie Paul
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Julian P. Schroers
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
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24
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Baya M, Belío Ú, Campillo D, Fernández I, Fuertes S, Martín A. Pt-M Complexes (M=Ag, Au) as Models for Intermediates in Transmetalation Processes. Chemistry 2018; 24:13879-13889. [DOI: 10.1002/chem.201802542] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Miguel Baya
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica; Universidad de Zaragoza-CSIC; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Úrsula Belío
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica; Universidad de Zaragoza-CSIC; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - David Campillo
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica; Universidad de Zaragoza-CSIC; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de, Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias Químicas; Universidad Complutense de Madrid; Ciudad Universitaria 28040 Madrid Spain
| | - Sara Fuertes
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica; Universidad de Zaragoza-CSIC; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Antonio Martín
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica; Universidad de Zaragoza-CSIC; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
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25
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Paenurk E, Gershoni-Poranne R, Chen P. Trends in Metallophilic Bonding in Pd–Zn and Pd–Cu Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00748] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Eno Paenurk
- Laboratorium für Organische
Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
| | - Renana Gershoni-Poranne
- Laboratorium für Organische
Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
| | - Peter Chen
- Laboratorium für Organische
Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
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26
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Pell CJ, Shih WC, Gatard S, Ozerov OV. Formation of (PNP)Rh complexes containing covalent rhodium-zinc bonds in studies of potential Rh-catalysed Negishi coupling. Chem Commun (Camb) 2017; 53:6456-6459. [PMID: 28560363 DOI: 10.1039/c7cc02707a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
While investigating rhodium-catalyzed Negishi coupling, it was observed that the (PNP)Rh fragment readily inserted into zinc-carbon bonds to form isolable molecules with covalent rhodium-zinc bonds.
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Affiliation(s)
- Christopher J Pell
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
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27
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del Pozo J, Pérez-Iglesias M, Álvarez R, Lledós A, Casares JA, Espinet P. Speciation of ZnMe2, ZnMeCl, and ZnCl2 in Tetrahydrofuran (THF), and Its Influence on Mechanism Calculations of Catalytic Processes. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03636] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juan del Pozo
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - María Pérez-Iglesias
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Rosana Álvarez
- Departamento de Química Orgánica, Facultad de Química (CINBIO), Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Agustí Lledós
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Juan A. Casares
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
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