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Pathak K, Mishra S, Nandi C, Saha S, Ghosh S. Synthesis and Chemistry of Dihydridoborate Group 7 Metal Complexes with Varied N,E-Chelated Ligands (E = O, NH, or S). Inorg Chem 2023; 62:160-169. [PMID: 36574500 DOI: 10.1021/acs.inorgchem.2c03095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Several dihydridoborate group 7 metal complexes have been synthesized and their structural aspects have been described from various N,S-, N,N-, and N,O-chelated borate species, such as Na[(H3B)mp] (mp = 2-mercaptopyridyl), Na[(H3B)amt] (amt = 2-amino-5-mercapto-1,3,4-thiadiazolyl), Na[(H3B)hp] (hp = 2-hydroxypyridyl), Na[(H2B)bap] (bap = bis(2-aminopyridyl)), and Na[(H2B)bdap] (bdap = bis(2,6-diaminopyridyl)). Room temperature photolysis of [M2(CO)10] (M = Mn or Re) with these borate species afforded dihydridoborate complexes [(CO)3M(μ-H)2BHL] 1-6 (1, M = Mn, L = mp; 2, M = Re, L = mp; 3, M = Mn, L = amt; 4, M = Mn, L = hp; 5, M = Mn, L = ap; 6, M = Mn, L = dap, ap = 2-aminopyridyl, dap = 2,6-diaminopyridyl). In complexes 1-3, the corresponding (H2BHL) units are coordinated to the metal centers through the (κ3-H,H,S) mode. However, in complexes 4 and 5 (or 6), the connection is via (κ3-H,H,O) and (κ3-H,H,N) modes of coordination, respectively. Complexes 1 and 5 underwent hydroboration reactions with terminal alkynes that yielded trans-hydroborated species [Mn(CO)3(μ-H)2(NC5H4E)B(PhC═CH2)] (7, E = S; 8, E = NH). Density functional theory (DFT) calculations have been carried out to investigate the electronic structures of these dihydridoborate species as well as the nature of bonding in them.
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Affiliation(s)
- Kriti Pathak
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Shivankan Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Chandan Nandi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Suvam Saha
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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van Vuuren E, Malan FP, Cordier W, Nell M, Landman M. Self-Isomerized–Cyclometalated Rhodium NHC Complexes as Active Catalysts in the Hydrosilylation of Internal Alkynes. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Estefan van Vuuren
- Department of Chemistry, University of Pretoria, Hatfield, Pretoria, South Africa 0002
| | - Frederick P. Malan
- Department of Chemistry, University of Pretoria, Hatfield, Pretoria, South Africa 0002
| | - Werner Cordier
- Department of Pharmacology, University of Pretoria, Arcadia, Pretoria, South Africa 0007
| | - Margo Nell
- Department of Pharmacology, University of Pretoria, Arcadia, Pretoria, South Africa 0007
| | - Marilé Landman
- Department of Chemistry, University of Pretoria, Hatfield, Pretoria, South Africa 0002
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Spielvogel KD, Stumme NC, Fetrow TV, Wang L, Luna JA, Keith JM, Shaw SK, Daly SR. Quantifying Variations in Metal–Ligand Cooperative Binding Strength with Cyclic Voltammetry and Redox-Active Ligands. Inorg Chem 2022; 61:2391-2401. [DOI: 10.1021/acs.inorgchem.1c03014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kyle D. Spielvogel
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Nathan C. Stumme
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Taylor V. Fetrow
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Li Wang
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Javier A. Luna
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Jason M. Keith
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Scott K. Shaw
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Scott R. Daly
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
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Affiliation(s)
- Katharina Thum
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
| | - Johannes Martin
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
| | - Holger Elsen
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
| | - Jonathan Eyselein
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
| | - Lena Stiegler
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
| | - Jens Langer
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
| | - Sjoerd Harder
- Chair of Inorganic and Organometallic Chemistry Universität Erlangen-Nürnberg Egerlandstraße 1 91058 Erlangen Germany
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Zafar M, Ramalakshmi R, Ahmad A, Antharjanam PKS, Bontemps S, Sabo-Etienne S, Ghosh S. Cooperative B-H and Si-H Bond Activations by κ 2- N, S-Chelated Ruthenium Borate Complexes. Inorg Chem 2021; 60:1183-1194. [PMID: 33390001 DOI: 10.1021/acs.inorgchem.0c03306] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cooperative E-H (E = B, Si) bond activations employing κ2-N,S-chelated ruthenium borate species, [PPh3{κ2-N,S-(NS2C7H4)}Ru{κ3-H,S,S'-H2B(NC7H4S2)2}], (1) are established. Treatment of 1 with BH3·SMe2 yielded the six-membered ruthenaheterocycle [PPh3{κ2-S,H-(BH3NS2C7H4)}Ru{κ3-H,S,S'-H2B(C7H4NS2)2}] (2) formed by a hemilabile ring opening of a Ru-N bond and capturing of a BH3 unit coordinated in an "end-on" fashion. On the other hand, the bulky borane H2BMes shows different reactivity with 1 that led to the formation of the two dihydroborate complexes [{κ3-S,H,H-(NBH2Mes)(S2C7H4)}Ru{κ3-H,S,S'-H2B(C7H4NS2)2}] (3) and [PPh3{κ3-S,H,H-(NBH2Mes)(S2C7H4)}Ru(κ2-N,S-C7H4NS2)] (4), in which H2BMes has been inserted into the Ru-N bond of the initial κ2-N,S-chelated ligand. In an attempt to directly activate hydrosilanes by 1, reactions were carried out with H2SiPh2 that yielded two isomeric five-membered ruthenium silyl complexes, namely [PPh3{κ2-S,Si-(NSiPh2)(S2C7H4)}Ru{κ3-H,S,S'-H2B(C7H4NS2)2}] (5a,b), and the hydridotrisilyl complex [Ru(H){κ2-S,Si-(SiPh2NC7H4S2}3] (6). These complexes were generated by Si-H bond activation with the release of H2 and the formation of N-Si and Ru-Si bonds. When the reaction of 1 was carried out in the presence of PhSiH3, the reaction only produced the analogous complexes [PPh3{κ2-S,Si-(NSiPhH)(S2C7H4)}Ru{κ3-H,S,S'-H2B(C7H4NS2)2}] (5a',b'). Density functional theory (DFT) calculations have been used to probe the bonding modes of boranes/silane with the ruthenium center.
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Affiliation(s)
| | | | | | | | - Sébastien Bontemps
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
| | - Sylviane Sabo-Etienne
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
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Sato K, Komuro T, Hashimoto H, Tobita H. Bifunctional Rhodium Complex Featuring a Silyl–1,8-naphthyridine Si,N-Chelate Ligand: Cooperation of Metal and Pendant Base for Capture and Bond-weakening of BH3. CHEM LETT 2020. [DOI: 10.1246/cl.200489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Keita Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Takashi Komuro
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Hisako Hashimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
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Iannetelli A, Da Costa RC, Guwy AJ, Tizzard GJ, Coles SJ, Owen GR. Transformation of a Norbornadiene Unit to Ethylenylcyclopentene Requiring Cooperation between Boron and Rhodium Centers. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Angelo Iannetelli
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 4AT, U.K
| | | | - Alan J. Guwy
- Sustainable Environment Research Centre, University of South Wales, Pontypridd, CF37 4AT, U.K
| | - Graham J. Tizzard
- UK National Crystallography Service, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Simon J. Coles
- UK National Crystallography Service, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Gareth R. Owen
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 4AT, U.K
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Patrick EA, Piers WE. Twenty-five years of bis-pentafluorophenyl borane: a versatile reagent for catalyst and materials synthesis. Chem Commun (Camb) 2020; 56:841-853. [DOI: 10.1039/c9cc08338c] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Highlights of the extensive chemistry and applications of bis-pentafluorophenyl borane (“Piers’ borane”) from the 25 years since its first appearance are featured.
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Abstract
Metal-ligand cooperation, in which metal and ligand participate in bond cleavage and formation, is gathering great attention in recent years. In contrast to the classical bond cleavage by active metal centers with spectator ligands, metal-ligand cooperation has enabled unprecedented reactivities. Especially, metal-ligand cooperative H-H bond cleavage has been extensively studied and applied to various catalysts. On the other hand, there are substantial efforts to expand the scope of the bond to be cleaved other than the H-H bond. This review summarizes the recent progress in the metal-ligand cooperative cleavages of Si-H, B-H, and C-H bonds and their catalytic applications.
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Affiliation(s)
- Takuya Higashi
- Department of Chemistry and Biotechnology, Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Shuhei Kusumoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
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Abstract
Reaction of [Rh(μ-Cl)(CO)(TXPB)] (1; TXPB = 2,7-di-tert-butyl-5-diphenylboryl-4-diphenylphosphino-9,9-dimethylthioxanthene) with NaBH4 yielded square planar [Rh(μ-H)(CO)(TXPB)] (2) in which the hydride ligand bridges between rhodium and the borane unit of TXPB. The Rh–H, Rh–B, and Rh–Cipso distances are short at 1.84(5), 2.456(6), and 2.568(5) Å, respectively, whereas the B–H bond, 1.59(6) Å, falls at the longer end of the usual range. Compound 2 is compared with the previously reported series of rhodium TXPB complexes: [RhX(CO)(TXPB)] {X = F (3), Cl (1), Br (4), I (5)}. Compound 4 in this series features the only crystallographically characterized example of an M–Br–BR3 interaction, and to expand this area, [NiBr(μ-Br)(TXPB)] (6) was prepared via the reaction of [NiBr2(dme)2] (dme = 1,2-dimethoxyethane) with TXPB. An X-ray crystal structure of light purple 6 revealed a square-planar geometry with a strong B–Br interaction {B–Br = 2.311(6) Å; ∑(C–B–C) = 344.5(7)°}. An 11B NMR chemical shift of 23 ppm was observed for 6, indicating that an appreciable B–Br interaction is maintained in solution. No signals were observed in the 31P{1H} NMR spectrum at room temperature, whereas a broadened 31P signal was observed at −20 °C, evolving into a sharp singlet at −67 °C. This behaviour suggests that at room temperature, square planar 6 exists in equilibrium with a paramagnetic tetrahedral isomer, present at a level below that detectable through Evans magnetic measurements.
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Affiliation(s)
- Bradley E. Cowie
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
| | - David J.H. Emslie
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
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Scharf LT, Weismann J, Feichtner KS, Lindl F, Gessner VH. Versatile Modes of Cooperative B−H Bond Activation Reactions in Ruthenium-Carbene Complexes: Addition, Ring-Opening and Insertion. Chemistry 2018; 24:3439-3443. [DOI: 10.1002/chem.201800248] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Lennart T. Scharf
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry; Ruhr University Bochum; Universitätsstrasse 150 44780 Bochum Germany
| | - Julia Weismann
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Kai-Stephan Feichtner
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry; Ruhr University Bochum; Universitätsstrasse 150 44780 Bochum Germany
| | - Felix Lindl
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Viktoria H. Gessner
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry; Ruhr University Bochum; Universitätsstrasse 150 44780 Bochum Germany
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Wandler AEE, Koos MRM, Nieger M, Luy B, Bräse S. 1,5-Cyclooctadienyl alcohols and ketones generate a new class of COD Pt complexes. Dalton Trans 2018; 47:3689-3692. [DOI: 10.1039/c8dt00075a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A variety of new racemic alcohol and ketone cyclooctadiene derivatives was prepared for their complexation with platinum to generate a new class of platinum(ii) complexes.
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Affiliation(s)
- Angela E. E. Wandler
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Martin R. M. Koos
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute for Biological Interfaces 4 – Magnetic Resonance
| | - Martin Nieger
- Department of Chemistry
- University of Helsinki
- Finland
| | - Burkhard Luy
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute for Biological Interfaces 4 – Magnetic Resonance
| | - Stefan Bräse
- Institute of Organic Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute of Toxicology and Genetics
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Iannetelli A, Tizzard G, Coles SJ, Owen GR. Sequential Migrations between Boron and Rhodium Centers: A Cooperative Process between Rhodium and a Monosubstituted Borohydride Unit. Inorg Chem 2017; 57:446-456. [DOI: 10.1021/acs.inorgchem.7b02700] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Angelo Iannetelli
- School of Applied
Science, University of South Wales, Treforest CF37 4AT, United Kingdom
| | - Graham Tizzard
- National Crystallography Service, School
of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Simon J. Coles
- National Crystallography Service, School
of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Gareth R. Owen
- School of Applied
Science, University of South Wales, Treforest CF37 4AT, United Kingdom
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Brugos J, Cabeza JA, García-Álvarez P, Pérez-Carreño E, Van der Maelen JF. Octahedral manganese(i) and ruthenium(ii) complexes containing 2-(methylamido)pyridine–borane as a tripod κ3N,H,H-ligand. Dalton Trans 2017; 46:4009-4017. [DOI: 10.1039/c7dt00378a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The borane adduct of the 2-(methylamido)pyridine anion has been incorporated into octahedral metal (Mn, Ru) complexes and their bonding has been studied by theoretical methods (DFT, QTAIM).
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Affiliation(s)
- Javier Brugos
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica-IUQOEM
- Universidad de Oviedo-CSIC
- 33071 Oviedo
- Spain
| | - Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica-IUQOEM
- Universidad de Oviedo-CSIC
- 33071 Oviedo
- Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica-IUQOEM
- Universidad de Oviedo-CSIC
- 33071 Oviedo
- Spain
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