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Li W, Li CQ, Leng G, Yan YK, Ma Y, Xu Z, Yang L. Theoretical Investigation on Dialumenes toward Dihydrogen Activation: Mechanism and Ligand Effect. J Phys Chem A 2024; 128:3273-3284. [PMID: 38635947 DOI: 10.1021/acs.jpca.4c00674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Herein, we report a computation study based on the density functional theory calculations to understand the mechanism and ligand effect of the base-stabilized dialumenes toward dihydrogen activation. Among all of the examined modes of dihydrogen activation using the base-stabilized dialumene, we found that the concerted 1,2-hydrogenation of the Al═Al double bond is kinetically more preferable. The concerted 1,2-hydrogenation of the Al═Al double bond adopts an electron-transfer model with certain asynchrony. That is, the initial electron donation from the H-H σ bonding orbital to the empty 3p orbital of the Al1 center is followed by the backdonation from the lone pair electron of the Al2 center to the H-H σ antibonding orbital. Combined with the energy decomposition analysis on the transition states of the concerted 1,2-hydrogenation of the Al═Al double bond and the topographic steric mapping analysis on the free dialumenes, we ascribe the higher reactivity of the aryl-substituted dialumene over the silyl-substituted analogue in dihydrogen activation to the stronger electron-withdrawing effect of the aryl group, which not only increases the flexibility of the Al═Al double bond but also enhances the Lewis acidity of the Al═Al core. Consequently, the aryl-substituted dialumene fragment suffers less geometric deformation, and the orbital interactions between the dialumene and dihydrogen moieties are more attractive during the 1,2-hydrogenation process. Moreover, our calculations also predict that the Al═Al double bond has a good tolerance with the stronger electron-withdrawing group (-CF3) and the weaker σ-donating N-heterocyclic carbene (NHC) analogue (e.g., triazol carbene and NHSi). The reactivity of the dialumene in dihydrogen activation can be further improved by introducing these groups as the supporting ligand and the stabilizing base on the Al═Al core, respectively.
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Affiliation(s)
- Weiyi Li
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu, Sichuan 610039, P. R. China
| | - Cai-Qin Li
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, P. R. China
| | - Geng Leng
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- TIianfu Co-Innovation Center, University of Electronic Science and Technology of China, Chengdu 610299, P. R. China
| | - Ying-Kun Yan
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu, Sichuan 610039, P. R. China
| | - Yueyue Ma
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu, Sichuan 610039, P. R. China
| | - Ziyan Xu
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu, Sichuan 610039, P. R. China
| | - Lingsong Yang
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu, Sichuan 610039, P. R. China
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Singh KK, Bhattacharyya A, Havenridge S, Ghabin M, Ausmann H, Siegler MA, Aikens CM, Das A. A first glance into mixed phosphine-stibine moieties as protecting ligands for gold clusters. NANOSCALE 2023; 15:6934-6940. [PMID: 37009838 DOI: 10.1039/d2nr05497c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Atomically precise gold clusters have attracted considerable research interest as their tunable structure-property relationships have resulted in widespread applications, from sensing and biomedicine to energetic materials and catalysis. In this article, the synthesis and optical properties of a novel [Au6(SbP3)2][PF6]2 cluster are reported. Despite the lack of spherical symmetry in the core, the cluster shows exceptional thermal and chemical stability. Detailed structural attributes and optical properties are evaluated experimentally and theoretically. This, to the best of our knowledge, is the first report of a gold cluster protected via synergistic multidentate coordination of stibine (Sb) and phosphine moieties (P). To further show that the latter moieties give a set of unique properties that differs from monodentate phosphine-protected [Au6(PPh3)6]2+, geometric structure, electronic structure, and optical properties are analyzed theoretically. In addition, this report also demonstrates the critical role of overall-ligand architecture in stabilizing mixed ligand-protected gold clusters.
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Affiliation(s)
- Kundan K Singh
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, USA.
| | - Ayan Bhattacharyya
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, USA.
| | - Shana Havenridge
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA.
| | - Mohamed Ghabin
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, USA.
| | - Hagan Ausmann
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, USA.
| | - Maxime A Siegler
- Department of Chemistry, John Hopkins University, Baltimore, Maryland 21218, USA
| | - Christine M Aikens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA.
| | - Anindita Das
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, USA.
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3
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Komuro T, Nakajima Y, Takaya J, Hashimoto H. Recent progress in transition metal complexes supported by multidentate ligands featuring group 13 and 14 elements as coordinating atoms. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Deka R, Sarkar A, Butcher RJ, Singh HB. Availing the ambiphilicity of an organotellurenyl cation for the synthesis of platinum(II)‐based carboxylate‐bridged heterobimetallic complex: Structure and bonding analysis. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rajesh Deka
- Indian Institute of Technology Bombay Chemistry Chemistry DepartmentIndia Institute of Technology Bombay 400076 Mumbai INDIA
| | - Arup Sarkar
- Indian Institute of Technology Bombay Chemistry INDIA
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Fukuda K, Harada T, Iwasawa N, Takaya J. Facile Synthesis and Utilization of Bis(o-phosphinophenyl)zinc as Isolable PZnP-pincer Ligands Enabled by Boron-Zinc Double Transmetallation. Dalton Trans 2022; 51:7035-7039. [DOI: 10.1039/d2dt01222g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(o-phosphinophenyl)zinc derivatives were successfully synthesized by the reaction of o-phosphinophenylboronates with dimethylzinc via boron-zinc double transmetallation. The transmetallation was significantly accelerated by the presence of the ortho PR2 substituent to...
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6
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Fajardo AM, Queyraiux N, Camy A, Vendier L, Grellier M, Del Rosal I, Maron L, Bontemps S. A masked form of an O-borylated Breslow intermediate for the diastereoselective FLP-type activation of aldehydes. Chemistry 2021; 28:e202104122. [PMID: 34964516 DOI: 10.1002/chem.202104122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Indexed: 11/07/2022]
Abstract
Breslow intermediates are very often elusive species whose application in Frustrated Lewis Pair chemistry is unprecedented. We describe herein the use of a masked form of an O-Borylated Breslow (OBB) intermediate that performs FLP-type activation of the carbonyl function of five different benzaldehyde derivatives with complete diastereoselectivity. The resulting compounds are characterised in solution by NMR spectroscopy (compounds 4 - 8 ) and in solid state by X-Ray diffraction analysis (compounds 4 - 6 ). A combined kinetic and theoretical investigation reveals the associative nature of the rate determining step and suggests that the OBB intermediate part is never released during the whole process.
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Affiliation(s)
| | | | - Aurèle Camy
- Laboratoire de Chimie de Coordination, chemistry, FRANCE
| | - Laure Vendier
- Laboratoire de Chimie de Coordination, chemistry, FRANCE
| | - Mary Grellier
- Laboratoire de Chimie de Coordination, chemistry, FRANCE
| | - Iker Del Rosal
- LPCNO: Laboratoire de physique et chimie des nano-objets, chemistry, FRANCE
| | - Laurent Maron
- LPCNO: Laboratoire de physique et chimie des nano-objets, chemistry, FRANCE
| | - Sébastien Bontemps
- Centre National de la Recherche Scientifique, Laboratoire de Chimie de Coordination, 205 route de Narbonne, 31077 cedex 04, toulouse, FRANCE
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7
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Furan S, Molkenthin M, Winkels K, Lork E, Mebs S, Hupf E, Beckmann J. Tris(6-diphenylphosphinoacenaphth-5-yl)gallium: Z-Type Ligand and Transmetalation Reagent. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sinas Furan
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Martin Molkenthin
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Konrad Winkels
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Enno Lork
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Stefan Mebs
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Emanuel Hupf
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Jens Beckmann
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
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8
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Huynh W, Taylor JW, Harman WH, Conley MP. Solid-state 11B NMR studies of coinage metal complexes containing a phosphine substituted diboraanthracene ligand. Dalton Trans 2021; 50:14855-14863. [PMID: 34604875 DOI: 10.1039/d1dt02981a] [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
Transition metal interactions with Lewis acids (M → Z linkages) are fundamentally interesting and practically important. The most common Z-type ligands contain boron, which contains an NMR active 11B nucleus. We measured solid-state 11B{1H} NMR spectra of copper, silver, and gold complexes containing a phosphine substituted 9,10-diboraanthracene ligand (B2P2) that contain planar boron centers and weak M → BR3 linkages ([(B2P2)M][BArF4] (M = Cu (1), Ag (2), Au (3)) characterized by large quadrupolar coupling (CQ) values (4.4-4.7 MHz) and large span (Ω) values (93-139 ppm). However, the solid-state 11B{1H} NMR spectrum of K[Au(B2P2)]- (4), which contains tetrahedral borons, is narrow and characterized by small CQ and Ω values. DFT analysis of 1-4 shows that CQ and Ω are expected to be large for planar boron environments and small for tetrahedral boron, and that the presence of a M → BR3 linkage relates to the reduction in CQ and 11B NMR shielding properties. Thus solid-state 11B NMR spectroscopy contains valuable information about M → BR3 linkages in complexes containing the B2P2 ligand.
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Affiliation(s)
- Winn Huynh
- Department of Chemistry, University of California, Riverside, California 92521, USA.
| | - Jordan W Taylor
- Department of Chemistry, University of California, Riverside, California 92521, USA.
| | - W Hill Harman
- Department of Chemistry, University of California, Riverside, California 92521, USA.
| | - Matthew P Conley
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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9
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Li QZ, Hara N, Semba K, Nakao Y, Sakaki S. Rh Complex with Unique Rh–Al Direct Bond: Theoretical Insight into its Characteristic Features and Application to Catalytic Reaction via σ-Bond Activation. Top Catal 2021. [DOI: 10.1007/s11244-021-01491-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Ghosh B, Fantuzzi F, Phukan AK. Understanding, Modulating, and Leveraging Transannular M → Z Interactions. Inorg Chem 2021; 60:12790-12800. [PMID: 34424687 DOI: 10.1021/acs.inorgchem.1c00977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Density functional theory calculations have been performed on metallatranes featuring a group 13 elements at the bridgehead position to understand the factors that influence the nature of the M···Z (M = Fe, Co, Ni; Z = Al, Ga, In) interaction present in these complexes and the resultant reactivity at the metal center. The strength of the M···Z interaction increases with the increase in the size and polarizability of the bridgehead group 13 elements. The calculated reaction free energies (ΔG° values) for binding of different Lewis bases to the metallatranes are found to be significantly more exergonic for the larger In(III) ions. Quantum theory of atoms in molecules calculations reveal the covalent nature of the M···Z interactions, while the EDA-NOCV analysis indicates the strong binding ability of these metallatranes not only to different σ-donor and π-acceptor ligands but also to relatively inert species, such as N2.
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Affiliation(s)
- Bijoy Ghosh
- Department of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
| | - Felipe Fantuzzi
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Ashwini K Phukan
- Department of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
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11
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Murakami R, Inagaki F. [Development of Gold-catalyzed Reaction Utilizing Electron Acceptability of Z-type Ligand]. YAKUGAKU ZASSHI 2021; 141:305-314. [PMID: 33642496 DOI: 10.1248/yakushi.20-00179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The interaction between transition metals and ligands is important for catalytic reactions. The ligands are largely dominated by the covalent X-type (hydride, alkyl and halogen) and/or dative L-type ligands (e.g., P, N, CO, olefin, etc.). Therefore, the interaction of the Z-type ligands (B, Al and Si, etc.) with transition metals is emerging as a new concept for the reactivity of the metal center. Recently, we developed the synthesis of the gold complex Au(DPB)X (DPB=diphosphine-borane) featuring the Z-type ligand, and their catalytic reaction. The gold catalysts showed a high activity compared to the general catalysts (without Z-ligand) for the various cyclization reactions due to the electron-withdrawing effect of the Z-ligand on the coordinating gold center. In this review, first the structure analysis of the synthesized Au→Z complex is introduced in detail, and second, the catalytic reactions based on the alkyne activation are described.
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Affiliation(s)
- Ryo Murakami
- The Faculty of Pharmaceutical Science, Kobe Gakuin University
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12
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Ayyappan R, Coppel Y, Vendier L, Ghosh S, Sabo-Etienne S, Bontemps S. Synthesis and reactivity of phosphine borohydride compounds. Chem Commun (Camb) 2021; 57:375-378. [PMID: 33325466 DOI: 10.1039/d0cc07072f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four lithium phosphine borohydride compounds featuring phenyl and naphthyl linkers have been synthesized. In-depth NMR analysis affords evidence for non-bonded through space P-B coupling. Reactivity towards CO2 leads to LiH transfer and to the quantitative formation of the corresponding ambiphilic phosphine-borane products.
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Affiliation(s)
- Ramaraj Ayyappan
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France.
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13
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Ríos P, Borge J, Fernández de Córdova F, Sciortino G, Lledós A, Rodríguez A. Ambiphilic boryl groups in a neutral Ni(ii) complex: a new activation mode of H 2. Chem Sci 2020; 12:2540-2548. [PMID: 34164022 PMCID: PMC8179274 DOI: 10.1039/d0sc06014c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The concept of metal–ligand cooperation opens new avenues for the design of catalytic systems that may offer alternative reactivity patterns to the existing ones. Investigations of this concept with ligands bearing a boron center in their skeleton established mechanistic pathways for the activation of small molecules in which the boron atom usually performs as an electrophile. Here, we show how this electrophilic behavior can be modified by the ligand trans to the boron center, evincing its ambiphilic nature. Treatment of diphosphinoboryl (PBP) nickel–methyl complex 1 with bis(catecholato)diboron (B2Cat2) allows for the synthesis of nickel(ii) bis-boryl complex 3 that promotes the clean and reversible heterolytic cleavage of dihydrogen leading to the formation of dihydroborate nickel complex 4. Density functional theory analysis of this reaction revealed that the heterolytic activation of H2 is facilitated by the cooperation of both boryl moieties and the metal atom in a concerted mechanism that involves a Ni(ii)/Ni(0)/Ni(ii) process. Contrary to 1, the boron atom from the PBP ligand in 3 behaves as a nucleophile, accepting a formally protic hydrogen, whereas the catecholboryl moiety acts as an electrophile, receiving the attack from the hydride-like fragment. This manifests the dramatic change in the electronic properties of a ligand by tuning the substituent trans to it and constitutes an unprecedented cooperative mechanism that involves two boryl ligands in the same molecule operating differently, one as a Lewis acid and the other one as a Lewis base, in cooperation with the metal. In addition, reactivity towards different nucleophiles such as amines or ammonia confirmed the electrophilic nature of the Bcat moiety, allowing the formation of aminoboranes. A bis(boryl)nickel complex promotes the facile and reversible activation of H2 through a cooperative mechanism that involves the metal and both boryl moieties in a concerted five-center process.![]()
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Affiliation(s)
- Pablo Ríos
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
| | - Javier Borge
- Departamento de Química Física y Analítica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo C/Julián Clavería 8 33006 Oviedo Spain
| | - Francisco Fernández de Córdova
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
| | - Giuseppe Sciortino
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona Campus UAB 08193 Cerdanyola del Vallès Spain
| | - Agustí Lledós
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona Campus UAB 08193 Cerdanyola del Vallès Spain
| | - Amor Rodríguez
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
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Chatterjee B, Chang WC, Jena S, Werlé C. Implementation of Cooperative Designs in Polarized Transition Metal Systems—Significance for Bond Activation and Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03794] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Basujit Chatterjee
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Wei-Chieh Chang
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Soumyashree Jena
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
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15
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Li QZ, Hara N, Nakao Y, Sakaki S. Coordination Flexibility of the Rh(PXP) Complex to NH 3, CO, and C 2H 4 (PXP = Diphosphine-Based Pincer Ligand; X = B, Al, and Ga): Theoretical Insight. Inorg Chem 2020; 59:15862-15876. [PMID: 33054207 DOI: 10.1021/acs.inorgchem.0c02390] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The recently synthesized rhodium-aluminum bimetallic complex Rh(PAlP) 1 (PAlP = pincer-type diphosphino-aluminyl ligand Al{[N(C6H4)]2NMe}[CH2P(iPr)2]2) containing a unique Rh-Al direct bond exhibits coordination flexibility because Rh and Al can play the role of coordination site for the substrate. DFT calculations of NH3, CO, and C2H4 adducts with 1 show that the Rh atom is favorable for all these substrate but the Al atom is as favorable as the Rh atom for NH3 and unfavorable for CO and C2H4. NH3 and CO prefer the coordination at the Rh-axial (Ax) site to the Rh-equatorial (Eq) site, but C2H4 prefers coordination at the Rh-Eq site to the Rh-Ax site. Consequently, two CO and C2H4 molecules coordinate with 1 at the Rh-Ax and Rh-Eq sites to afford trigonal bipyramidal complexes Rh(PAlP)(CO)2 and Rh(PAlP)(C2H4)2, which is consistent with the experimental observation of Rh(PAlP)(CO)2. Energy decomposition analysis reveals that an electrostatic term plays an important role for NH3 coordination with the Al atom of 1, because Al has a significantly large positive charge and NH3 has a much negatively charged N atom and exhibits a considerably negative electrostatic potential at the Al position. In B and Ga analogues Rh(PBP) 2 and Rh(PGaP) 3, B and Ga atoms are not good for CO and C2H4 like the Al atom in 1. NH3 adducts with 2 and 3 at the B and Ga sites are less stable than those adducts at the Rh-Ax site unlike the NH3 adduct with 1 at the Al site. This difference in the NH3 adduct between Rh(PAlP) and others (Rh(PBP) and Rh(PGaP)) arises from much less positive charges of B and Ga and a smaller atomic size of B than that of Al. These results indicate that the significantly large electropositive nature and appropriate atomic size of Al are responsible for the characteristic coordination flexibility of Rh(PAlP).
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Affiliation(s)
- Qiao-Zhi Li
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishi-hiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
| | - Naofumi Hara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Shigeyoshi Sakaki
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Goryo-Ohara 1-30, Nishikyo-ku, Kyoto 615-8510, Japan
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16
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Cao Y, Shih WC, Bhuvanesh N, Ozerov OV. Reversible addition of ethylene to a pincer-based boryl-iridium unit with the formation of a bridging ethylidene. Chem Sci 2020; 11:10998-11002. [PMID: 34094348 PMCID: PMC8162418 DOI: 10.1039/d0sc04748a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
This report examines reactions of a series of Ir complexes supported by the diarylboryl/bis(phosphine) PBP pincer ligand with ethylene: (PBP)IrH4 (1), (PBP)IrH2(CO) (2), and (PBP)Ir(CO)2 (3). The outcomes of these reactions differ from those typical for Ir complexes supported by other pincer ligands and do not give rise to simple ethylene adducts or products of insertion of Ir into the C–H bond of ethylene. Instead, the elements of ethylene are incorporated into the molecules to result in B–C bonds. In the case of 2 and 3, ethylene addition results in the formation of B/Ir bridging ethylidene complexes 5 and 6. For 6, the addition of ethylene (and the analogous addition of 1-hexene) is shown to be partially reversible. Addition of ethylene to 2 and 3 is remarkable because they are saturated at Ir and yet the net outcome is such that ethylene binds without replacing any ligands already present. A mechanistic inquiry suggests that dissociation of CO from 3 or 6 is necessary in order for the addition or loss of ethylene to proceed. (PBP)Ir pincer complexes containing a boryl-iridium linkage reversibly bind ethylene as an ethylidene bridging B and Ir.![]()
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Affiliation(s)
- Yihan Cao
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
| | - Wei-Chun Shih
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
| | - Oleg V Ozerov
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
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Takaya J. Catalysis using transition metal complexes featuring main group metal and metalloid compounds as supporting ligands. Chem Sci 2020; 12:1964-1981. [PMID: 34163959 PMCID: PMC8179324 DOI: 10.1039/d0sc04238b] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/09/2020] [Indexed: 12/15/2022] Open
Abstract
Recent development in catalytic application of transition metal complexes having an M-E bond (E = main group metal or metalloid element), which is stabilized by a multidentate ligand, is summarized. Main group metal and metalloid supporting ligands furnish unusual electronic and steric environments and molecular functions to transition metals, which are not easily available with standard organic supporting ligands such as phosphines and amines. These characteristics often realize remarkable catalytic activity, unique product selectivity, and new molecular transformations. This perspective demonstrates the promising utility of main group metal and metalloid compounds as a new class of supporting ligands for transition metal catalysts in synthetic chemistry.
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Affiliation(s)
- Jun Takaya
- Department of Chemistry, Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
- JST, PRESTO Honcho Kawaguchi Saitama 332-0012 Japan
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18
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Affiliation(s)
- Matthias Vogt
- Institute of Chemistry Faculty of Natural Science II Martin Luther University Halle‐Wittenberg Kurt‐Mothes‐Str. 2 06120 Halle (Saale) Germany
| | - Robert Langer
- Institute of Chemistry Faculty of Natural Science II Martin Luther University Halle‐Wittenberg Kurt‐Mothes‐Str. 2 06120 Halle (Saale) Germany
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19
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Uebing M, Hepp A, Uhl W. MCl 2 Molecules (M = Zn, Cd, Hg) Coordinated by Trifunctional E/P 2-Based FLPs (E = Ga, In): Chelating Coordination of the Metal Atoms and Activation of M–Cl Bonds by E–Cl Interactions. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marten Uebing
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
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20
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Murakami R, Inagaki F. Synthesis of Gold Catalyst Featuring Z-Type Ligand and Its Catalyic Reaction. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Srungavruksham NK, Liu YH, Tsai MK, Chiu CW. PSb +P Ligand: Platform for a Stibenium to Transition-Metal Interaction. Inorg Chem 2020; 59:4468-4474. [PMID: 32193926 DOI: 10.1021/acs.inorgchem.9b03530] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The coordination chemistry of cationic divalent pnictogen ligands, such as nitrenium and phosphenium, has been well-explored in recent years. However, corresponding studies of a heavier congener, stibenium ion, are rare. To better facilitate a Sb+-metal interaction, a tridentate P-Sb+-P ligand with two phosphine buttresses was designed and synthesized, and its coordination chemistry toward late transition metals was investigated. The stibenium ligand was delivered as an activated P(SbCl)P-AgOTf complex (2) that releases AgCl and the P-Sb+-P ligand upon the treatment with transition metals. Reacting 2 with Rh(I) and Ir(I) metals yielded the anticipated stibenium-transition-metal complexes [(Rh(COD)Cl)2(μ-PSb+P)] OTf ([3][OTf]) and [(Ir(COD)Cl)2(μ-PSb+P)] OTf ([4][OTf]). The M-Sb+-M bridging structure was confirmed by single-crystal X-ray crystallography, and the bonding situation was examined computationally. Theoretical studies revealed the presence of three-center delocalized M-Sb+-M bonding interactions in [3][OTf] and [4][OTf].
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Affiliation(s)
| | - Yi-Hung Liu
- Department of Chemistry, National Taiwan University, No.1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Ming-Kang Tsai
- Department of Chemistry, National Taiwan Normal University, No. 88, Section 4, Ting-Zhou Road, Taipei 11677, Taiwan
| | - Ching-Wen Chiu
- Department of Chemistry, National Taiwan University, No.1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
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22
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Drover MW, Bowes EG, Dufour MC, Lesperance-Nantau LA. Platinum complexes of a boron-rich diphosphine ligand. Dalton Trans 2020; 49:16312-16318. [DOI: 10.1039/d0dt00963f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe the preparation, characterization, and reactivity of two PtII bis-hydrocarbyl complexes containing the 1,2-bis(di(3-dicyclohexylboraneyl)propylphosphino)ethane (P2BCy4) ligand.
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Affiliation(s)
- Marcus W. Drover
- Department of Chemistry and Biochemistry
- The University of Windsor
- Windsor
- Canada
| | - Eric G. Bowes
- Chemistry Division
- Los Alamos National Laboratory
- Los Alamos
- USA
| | - Maeve C. Dufour
- Department of Chemistry and Biochemistry
- The University of Windsor
- Windsor
- Canada
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23
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Frogley BJ, Hill AF, Sharma M, Sinha A, Ward JS. Semi-bridging σ-silyls as Z-type ligands. Chem Commun (Camb) 2020; 56:3532-3535. [DOI: 10.1039/c9cc07763d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of SiHPh(NCH2PPh2)2C6H4-1,2 with zerovalent group 10 reagents afford the homoleptic bimetallic complexes [M2{μ-κ3-Si,P,P′-SiPh(CH2PPh2)2C6H4}2] (M = Ni, Pd, Pt) in which the M–M bond is unsymmetrically bridged by two σ-silyl groups.
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Affiliation(s)
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Manab Sharma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Arup Sinha
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Jas S. Ward
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
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24
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Recent advances in the chemistry of group 9—Pincer organometallics. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2020. [DOI: 10.1016/bs.adomc.2019.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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25
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Tiddens MR, Moret ME. Metal-Ligand Cooperation at Phosphine-Based Acceptor Pincer Ligands. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Boudjelel M, Mallet-Ladeira S, Bouhadir G, Bourissou D. Strong metal-borane interactions in low-valent cyclopentadienyl rhodium complexes. Chem Commun (Camb) 2019; 55:12837-12840. [PMID: 31596281 DOI: 10.1039/c9cc06639j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first examples of half-sandwich Rh(i) complexes stabilized by borane coordination have been prepared and structurally characterized. As substantiated by NMR spectroscopy and single-crystal X-ray diffraction, the phosphine-borane ligand iPr2P-(o-C6H4)-BFxyl2 1 [Fxyl = 3,5-(F3C)2C6H3] engages in tight η3-BCC or η1-B coordination, depending on the metal environment.
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Affiliation(s)
- Maxime Boudjelel
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (FR 2599), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Ghenwa Bouhadir
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
| | - Didier Bourissou
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
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27
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28
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Affiliation(s)
- Yihan Cao
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Wei-Chun Shih
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
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29
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Cao Y, Shih WC, Bhuvanesh N, Ozerov OV. Silver halide complexes of a borane/bis(phosphine) ligand. Dalton Trans 2019; 48:9959-9961. [PMID: 31241105 DOI: 10.1039/c9dt02100k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver halide complexes of a borane/bis(phosphine) ligand have been prepared and characterized. With AgF, the borane abstracts fluoride, resulting in a zwitterionic complex. With AgCl, AgBr, and AgI, the halide stays coordinated to Ag, with little to no Ag-B interaction.
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Affiliation(s)
- Yihan Cao
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
| | - Wei-Chun Shih
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
| | - Oleg V Ozerov
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
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30
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Chval Z, Dvořáčková O, Chvalová D, Burda JV. Square-Planar Pt(II) and Ir(I) Complexes as the Lewis Bases: Donor-Acceptor Adducts with Group 13 Trihalides and Trihydrides. Inorg Chem 2019; 58:3616-3626. [PMID: 30816711 DOI: 10.1021/acs.inorgchem.8b02765] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stability and properties of donor-acceptor adducts of square-planar Pt(II) and Ir(I) complexes (designated as PtX, IrX, or generally MX complexes) with trihydrides and trihalides of group 13 elements of general formula YZ3 (Y = B, Al, Ga; Z = H, F, Cl, Br) were studied theoretically using DFT methodology in the gas phase. MX complexes were represented by wide range of the ligand environment which included model complexes [Ir(NH3)3X]0 and cis-[Pt(NH3)2X2]0 (X = H, CH3, F, Cl, Br) and isoelectronic complexes [Ir(NNN)(CH3)]0 and [Pt(NCN)(CH3)]0 with tridentate NNN and NCN pincer ligands. MX complexes acted as the Lewis bases donating electron density from the doubly occupied 5d z2 atomic orbital of the metal M atom to the empty valence p z orbital of Y whose evidence was clearly provided by the natural atomic orbital (NAO) analysis. This charge transfer led to the formation of pentacoordinated square pyramidal MX·(YZ3) adducts with M·Y dative bond. Binding energies were -44.7 and -75.2 kcal/mol for interaction of GaF3 as the strongest acid with PtNCN and IrNNN pincer ligands complexes. Only M·B bonds had covalent character although MX·BZ3 adducts were the least stable due to large values of Pauli repulsion and deformation energies. The highest degree of covalent character was found for adducts of BH3 in all series of structures studied. Al and Ga adducts showed remarkably similar behavior with respect to geometry and binding energies.
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Affiliation(s)
- Zdeněk Chval
- Faculty of Health and Social Sciences , University of South Bohemia , J. Boreckého 27 , 370 11 České Budějovice , Czech Republic
| | - Olga Dvořáčková
- Faculty of Health and Social Sciences , University of South Bohemia , J. Boreckého 27 , 370 11 České Budějovice , Czech Republic.,Faculty of Science , University of South Bohemia , Branišovská 1760 , 370 05 České Budějovice , Czech Republic
| | - Daniela Chvalová
- Biology Centre of the Czech Academy of Sciences , Institute of Entomology , Branišovská 31 , 370 05 České Budějovice , Czech Republic
| | - Jaroslav V Burda
- Faculty of Mathematics and Physics , Charles University , Ke Karlovu 3 , Prague 2 121 16 , Czech Republic
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31
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Synthesis of Trithia-Borinane Complexes Stabilized in Diruthenium Core: [(Cp*Ru)2(η1-S)(η1-CS){(CH2)2S3BR}] (R = H or SMe). INORGANICS 2019. [DOI: 10.3390/inorganics7020021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The thermolysis of arachno-1 [(Cp*Ru)2(B3H8)(CS2H)] in the presence of tellurium powder yielded a series of ruthenium trithia-borinane complexes: [(Cp*Ru)2(η1-S)(η1-CS){(CH2)2S3BH}] 2, [(Cp*Ru)2(η1-S)(η1-CS){(CH2)2S3B(SMe)}] 3, and [(Cp*Ru)2(η1-S)(η1-CS){(CH2)2S3BH}] 4. Compounds 2–4 were considered as ruthenium trithia-borinane complexes, where the central six-membered ring {C2BS3} adopted a boat conformation. Compounds 2–4 were similar to our recently reported ruthenium diborinane complex [(Cp*Ru){(η2-SCHS)CH2S2(BH2)2}]. Unlike diborinane, where the central six-membered ring {CB2S3} adopted a chair conformation, compounds 2–4 adopted a boat conformation. In an attempt to convert arachno-1 into a closo or nido cluster, we pyrolyzed it in toluene. Interestingly, the reaction led to the isolation of a capped butterfly cluster, [(Cp*Ru)2(B3H5)(CS2H2)] 5. All the compounds were characterized by 1H, 11B{1H}, and 13C{1H} NMR spectroscopy and mass spectrometry. The molecular structures of complexes 2, 3, and 5 were also determined by single-crystal X-ray diffraction analysis.
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Abstract
The reactions of 1-tert butyl-5-thiotetrazole (HtttBu) with Na[BH4] provides Na[H2B(tttBu)2] (Na[1]) or Na[HB(tttBu)3] (Na[2]) in refluxing THF or xylene, respectively. Treating [RuCl(Ph)(CO)(PPh3)2] with Na[2] affords the triply-buttressed ruthenaboratrane [Ru(CO)(PPh3){κ4-B,S,S',S''-B(tttBu)3}] (5) whilst Na[1] with [IrCl(CO)(PPh3)2] or [RuCl(Ph)(CO)(PPh3)2] provides rare examples of doubly-buttressed metallaboratranes [IrH(CO)(PPh3){κ3-B,S,S'-BH(tttBu)2}] (7) and [Ru(CO)(PPh3)2{κ3-B,S,S'-BH(tttBu)2}] (12), the latter via the isolable thiotetrazoylborate complex [Ru(Ph)(CO)(PPh3){κ3-H,S,S'-H2B(tttBu)2}] (11).
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Affiliation(s)
- Anthony F Hill
- Research School of Chemistry, Australian National University, Acton, Canberra, A.C.T., Australia.
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33
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Foreman MRSJ, Hill AF, Ma C, Tshabang N, White AJP. Synthesis and ligand substitution reactions of κ4-B,S,S′,S′′-ruthenaboratranes. Dalton Trans 2019; 48:209-219. [DOI: 10.1039/c8dt04278k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Ruthenaboratranes of the form [Ru(CO)L{κ4-B(mt)3}] (mt = N-methimazolyl) arise via substitution of the PPh3 ligand in [Ru(CO)(PPh3){κ4-B(mt)3}] by L (L = PMe2Ph, PMe3, P(OMe)3, P(OEt)3, P(OPh)3) or reactions of [RuCl(R)(CO)Ln] (R = Ph, CHCHPh; n = 2, L = PCy3; n = 3, L = P(OMe)3, PMe2Ph) with Na[HB(mt)3].
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Affiliation(s)
- Mark R. St.-J. Foreman
- Department of Chemistry and Chemical Engineering
- Nuclear Chemistry and Industrial Materials Recycling
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Chenxi Ma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Never Tshabang
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
- Department of Chemistry
| | - Andrew J. P. White
- Chemical Crystallography Laboratory
- Department of Chemistry
- Imperial College London White City Campus
- UK
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34
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Ma C, Hill AF. Methimazolyl based diptych bicyclo-[3.3.0]-ruthenaboratranes. Dalton Trans 2019; 48:1976-1992. [DOI: 10.1039/c8dt04813d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of [RuCl(R)(CO)(PPh3)2] (R = CHCHPh, Ph) with Na[H2B(mt)2] (mt = N-methyl-2-mercaptoimidazolyl) transiently provide [Ru(R)(CO)(PPh3){κ3-H,S,S′-H2B(mt)2}] which each evolve to the ruthenaboratrane [Ru(CO)(PPh3)2{κ3-B,S,S′-BH(mt)2}](Ru→B)8.
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Affiliation(s)
- Chenxi Ma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
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35
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Béthegnies A, Escudié Y, Nuñez‐Dallos N, Vendier L, Hurtado J, del Rosal I, Maron L, Bontemps S. Reductive CO2Homocoupling: Synthesis of a Borylated C3Carbohydrate. ChemCatChem 2018. [DOI: 10.1002/cctc.201801875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Aurélien Béthegnies
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse (France) andUniversité de Toulouse UPS, INPT Toulouse 31077 France
| | - Yannick Escudié
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse (France) andUniversité de Toulouse UPS, INPT Toulouse 31077 France
| | - Nelson Nuñez‐Dallos
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse (France) andUniversité de Toulouse UPS, INPT Toulouse 31077 France
- Department of ChemistryUniversidad de Los Andes Institution Bogotá 111711 Colombia
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse (France) andUniversité de Toulouse UPS, INPT Toulouse 31077 France
| | - John Hurtado
- Department of ChemistryUniversidad de Los Andes Institution Bogotá 111711 Colombia
| | - Iker del Rosal
- Université de Toulouse and CNRS, INSA, UPS, UMR 5215, LPCNO Toulouse F-31077 France
| | - Laurent Maron
- Université de Toulouse and CNRS, INSA, UPS, UMR 5215, LPCNO Toulouse F-31077 France
| | - Sébastien Bontemps
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse (France) andUniversité de Toulouse UPS, INPT Toulouse 31077 France
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36
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Bennett MA, Bhargava SK, Mirzadeh N, Privér SH. The use of [2-C 6 R 4 PPh 2 ] − (R = H, F) and related carbanions as building blocks in coordination chemistry. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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37
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Sung S, Ang A, Hill AF, Ma C, Kong RY, Ward JS, Young RD. Bimetallic Complexes of Group 8, 9, and 11 Metals Bridged by RB(NCH
2
PPh
2
)
2
C
6
H
4
(R = H, 4‐C
6
H
4
X; X = H, Me, F) Ligands. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Simon Sung
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Singapore
| | - Angelina Ang
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Singapore
| | - Anthony F. Hill
- Research School of Chemistry Australian National University 2601 Canberra Australia
| | - Chenxi Ma
- Research School of Chemistry Australian National University 2601 Canberra Australia
| | - Richard Y. Kong
- Research School of Chemistry Australian National University 2601 Canberra Australia
| | - Jas S. Ward
- Research School of Chemistry Australian National University 2601 Canberra Australia
| | - Rowan D. Young
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Singapore
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Tagne Kuate AC, Lalancette RA, Bannenberg T, Jäkle F. Diferrocenylmercury‐Bridged Diphosphine: A Chiral, Ambiphilic, and Redox‐Active Bidentate Ligand. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alain C. Tagne Kuate
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
- Department of Chemistry Faculty of Science University of Dschang P.O. Box 67 Dschang Cameroon
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Frieder Jäkle
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
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39
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Hara N, Saito T, Semba K, Kuriakose N, Zheng H, Sakaki S, Nakao Y. Rhodium Complexes Bearing PAlP Pincer Ligands. J Am Chem Soc 2018; 140:7070-7073. [DOI: 10.1021/jacs.8b04199] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naofumi Hara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Teruhiko Saito
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kazuhiko Semba
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Nishamol Kuriakose
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Hong Zheng
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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40
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Borthakur B, Das S, Phukan AK. Strategies toward realization of unsupported transition metal-boron donor-acceptor complexes: an insight from theory. Chem Commun (Camb) 2018; 54:4975-4978. [PMID: 29701733 DOI: 10.1039/c8cc02027b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pre-pyramidalization of the boron centre in the Lewis acidic groups is a prerequisite for the formation of unsupported donor-acceptor complexes with Lewis basic metal fragments such as [Pt(NHC)2].
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Affiliation(s)
- Bitupon Borthakur
- Department of Chemical Sciences, Tezpur University, Napam - 784 028, Assam, India.
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41
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Tagne Kuate AC, Lalancette RA, Bannenberg T, Jäkle F. Diferrocenylmercury‐Bridged Diphosphine: A Chiral, Ambiphilic, and Redox‐Active Bidentate Ligand. Angew Chem Int Ed Engl 2018; 57:6552-6557. [DOI: 10.1002/anie.201803086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Alain C. Tagne Kuate
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
- Department of Chemistry Faculty of Science University of Dschang P.O. Box 67 Dschang Cameroon
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Frieder Jäkle
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
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42
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Cowie BE, Emslie DJH. Reactivity of a Borane-Appended 1,1′-Bisphosphinoferrocene Ligand: Transition Metal and Lewis Acid Coordination, Cyclopentadienyl Ring Borylation, and Boronium Cation Generation. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bradley E. Cowie
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - David J. H. Emslie
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
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43
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Barnett BR, Figueroa JS. Zero-valent isocyanides of nickel, palladium and platinum as transition metal σ-type Lewis bases. Chem Commun (Camb) 2018; 52:13829-13839. [PMID: 27826607 DOI: 10.1039/c6cc07863j] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Transition metal complexes that contain metal-to-ligand retrodative σ-bonds have become the subject of increasing studies over the last decade. Lewis acidic "Z-type ligands" can modulate the electronic structure of their resultant complexes in a manner distinct from 2e- donor ligands, and can also engage in cooperative reactivity with a Lewis basic transition metal. In this Feature article, we summarize our work with transition metal isocyanide complexes of group 10 metals that have exploited metal-based σ-type Lewis basicity. While the complexes Ni(CNArMes2)3, Pd(CNArDipp2)2 and Pt(CNArDipp2)2 were initially targeted as analogues to unstable, low-coordinate metal carbonyls, it soon became apparent that these zero-valent metal centers bore appreciable Lewis basic qualities due largely to the enhanced σ-donor/π-acid ratio of isocyanides compared to CO. Detailed spectroscopic and structural studies of metal-only Lewis pairs (MOLPs) formed from these complexes have furthered our understanding of the electronic structure perturbations effected by Z-type ligand binding. In addition, the platinum (boryl)iminomethane (BIM) complex Pt(κ2-N,B-Cy2BIM)(CNArDipp2) has illuminated a general ligand design strategy that can engender significant reverse-dative interactions with buttressed Lewis acids, and also has expanded the known scope of cooperative reactivity that can be realized at a transition metal-borane linkage.
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Affiliation(s)
- Brandon R Barnett
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, California 92093, USA.
| | - Joshua S Figueroa
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, California 92093, USA.
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44
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Owen GR. Functional group migrations between boron and metal centres within transition metal-borane and -boryl complexes and cleavage of H-H, E-H and E-E' bonds. Chem Commun (Camb) 2018; 52:10712-26. [PMID: 27489890 DOI: 10.1039/c6cc03817d] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This feature article examines some of the recent advances in the chemistry of Z-type transition metal-borane and X-type transition metal-boryl complexes. It focuses on the employment of these boron-based functionalities acting as stores and transfer agents for functional groups such as hydrides, alkyl groups and aryl groups which can either be abstracted or delivered to the metal centre. The review also explores the rather novel reactivity involving the cleavage of H-H, E-H and E-E' bonds (where E and E' are a range of groups) across the transition metal-boron bond in such complexes. It explores the early examples of the addition of H-H across transition metal-borane bonds and describes the new transformation in the context of other known modes of hydrogen activation including classic oxidative addition and heterolytic cleavage at transition metal centres as well as Frustrated Lewis Pair chemistry. Similar reactivity involving transition metal-boryl complexes are also described particularly those which undergo both boryl-to-borane and borane-to-borohydride transformations. The delivery of hydride to the metal centre in combination with the potential to regenerate the borohydride functional group via a recharging process is explored in the context of providing a new strategy for catalysis. Finally, a light-hearted look at the analogy of the 'stinging processes' involving Trofimenko type ligands is taken one step further to determine whether it is indeed in the nature of scorpionate ligands to repeatedly 'sting' just as the real life scorpions do.
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Affiliation(s)
- Gareth R Owen
- School of Applied Science, University of South Wales, Upper Glyntaff, Pontypridd, CF37 4AT, UK.
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45
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Talley MR, Stokes RW, Walker WK, Michaelis DJ. Electrophilic activation of alkynes for enyne cycloisomerization reactions with in situ generated early/late heterobimetallic Pt-Ti catalysts. Dalton Trans 2018; 45:9770-3. [PMID: 27240482 DOI: 10.1039/c6dt01783e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ formation of heterobimetallic Pt-Ti catalysts enables rapid room temperature catalysis in enyne cycloisomerization reactions. The Lewis acidic titanium atom in the ligand framework is shown to be essential for fast catalysis. A range of enyne substrates are efficiently cyclized to carbocycles and heterocycles in high yield.
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Affiliation(s)
- Michael R Talley
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA.
| | - Ryjul W Stokes
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA.
| | - Whitney K Walker
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA.
| | - David J Michaelis
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA.
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46
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Neshat A, Shahsavari HR, Mastrorilli P, Todisco S, Haghighi MG, Notash B. A Borane Platinum Complex Undergoing Reversible Hydride Migration in Solution. Inorg Chem 2018; 57:1398-1407. [DOI: 10.1021/acs.inorgchem.7b02807] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Abdollah Neshat
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | | | | | | | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
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47
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Steinhoff P, Steinbock R, Friedrich A, Schieweck BG, Cremer C, Truong KN, Tauchert ME. Synthesis and properties of heterobimetallic rhodium complexes featuring LiI, CuI or ZnII as a Lewis acidic metalloligand. Dalton Trans 2018; 47:10439-10442. [PMID: 30004545 DOI: 10.1039/c8dt01267a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coordination of Lewis acidic metalloligands LiI, CuI and ZnII shows a remarkable impact on the CO stretching band in heterobimetallic rhodium complexes.
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Affiliation(s)
- Patrick Steinhoff
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Ralf Steinbock
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Anna Friedrich
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | | | - Christopher Cremer
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Khai-Nghi Truong
- Institute of Inorganic Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
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48
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Saha K, Ramalakshmi R, Borthakur R, Gomosta S, Pathak K, Dorcet V, Roisnel T, Halet JF, Ghosh S. An Efficient Method for the Synthesis of Boratrane Complexes of Late Transition Metals. Chemistry 2017; 23:18264-18275. [PMID: 28949073 DOI: 10.1002/chem.201704332] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Indexed: 11/08/2022]
Abstract
In a quest for efficient precursors for the synthesis of boratrane complexes of late transition metals, we have developed a useful synthetic method using [L'M(μ-Cl)Clx ]2 as precursors (L'=η6 -p-cymene, M=Ru, x=1; L'=COD, M=Rh, x=0 and L'=Cp*, M=Ir or Rh, x=1; COD=1,5-cyclooctadiene, Cp*=η5 -C5 Me5 ). For example, treatment of Na[(H3 B)bbza] or Na[(H2 B)mp2 ] (bbza=bis(benzothiazol-2-yl)amine; mp=2-mercaptopyridyl) with [L'M(μ-Cl)Clx ]2 yielded [(η6 -p-cymene)RuBH{(NCSC6 H4 )(NR)}2 ] (2; R=NCSC6 H4 ), [{N(NCSC6 H4 )2 }RhBH{(NCSC6 H4 )(NR)}2 ] (3; R=NCS-C6 H4 ), [(η6 -p-cymene)RuBH(L)2 ] (5; L=C5 H4 NS), and [Cp*MBH(L)2 ] (6 and 7; L=C5 H4 NS, M=Ir or Rh). In order to delineate the significance of the ligands, we studied the reactivity of [(COD)Rh(μ-Cl)]2 with Na[(H3 B)bbza], which led to the formation of the isomeric agostic complexes [(η4 -COD)Rh(μ-H)BHRh(C14 H8 N3 S2 )3 ], 4 a and 4 b, in parallel to the formation of 16-electron square-pyramidal rhodaboratrane complex 3. Compounds 4 a and 4 b show two different geometries, in which the Rh-B bonds are shorter than in the reported Rh agostic complexes. The new compounds have been characterized in solution by various spectroscopic analyses, and their structural arrangements have been unequivocally established by crystallographic analyses. DFT calculations provide useful insights regarding the stability of these metallaboratrane complexes as well as their M→B bonding interactions.
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Affiliation(s)
- Koushik Saha
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Rongala Ramalakshmi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Rosmita Borthakur
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Suman Gomosta
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Kriti Pathak
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, 35042, Rennes Cedex, France
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, 35042, Rennes Cedex, France
| | - Jean-François Halet
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, 35042, Rennes Cedex, France
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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49
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Shih WC, Ozerov OV. Selective ortho C–H Activation of Pyridines Directed by Lewis Acidic Boron of PBP Pincer Iridium Complexes. J Am Chem Soc 2017; 139:17297-17300. [DOI: 10.1021/jacs.7b10570] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Chun Shih
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
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50
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Sorochkina K, Chernichenko K, Nieger M, Leskelä M, Repo T. (Dicyclohexyl(2-(dimesitylboryl)phenyl)phosphine: en route to stable frustrated Lewis pairs-hydrogen adducts in water. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2017-0133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
The new ansa-phosphinoborane (dicyclohexyl(2-(dimesitylboryl)phenyl)phosphine was synthesized via an one-pot protocol in 67% yield. The compound has been characterized by 1H, 13C, 11B and 31P NMR, and its solid-state structure determined by a single crystal X-ray diffraction analysis. The ansa-phosphinoborane does not react with molecular hydrogen or water at room or elevated temperature. According to performed DFT studies, heterolytic splitting of water or hydrogen by the phosphinoborane are both endergonic but close in thermodynamics. In polar solvents, such as in methanol or acetonitrile, addition of hydrogen is energetically more favorable than of water.
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Affiliation(s)
- Kristina Sorochkina
- Department of Chemistry , University of Helsinki , A.I. Virtasen aukio 1, P.O. Box 55, FIN-00014 , Helsinki , Finland
| | - Konstantin Chernichenko
- Department of Chemistry , University of Helsinki , A.I. Virtasen aukio 1, P.O. Box 55, FIN-00014 , Helsinki , Finland , Tel.: +358440926420
| | - Martin Nieger
- Department of Chemistry , University of Helsinki , A.I. Virtasen aukio 1, P.O. Box 55, FIN-00014 , Helsinki , Finland
| | - Markku Leskelä
- Department of Chemistry , University of Helsinki , A.I. Virtasen aukio 1, P.O. Box 55, FIN-00014 , Helsinki , Finland
| | - Timo Repo
- Department of Chemistry , University of Helsinki , A.I. Virtasen aukio 1, P.O. Box 55, FIN-00014 , Helsinki , Finland , Tel.: +358294150194
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