1
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Ghosh A, Conradie J. Theoretical Photoelectron Spectroscopy of Metal-Metal Quintuple Bonds: Relativity-Driven Reordering of Frontier Orbitals. ACS ORGANIC & INORGANIC AU 2024; 4:301-305. [PMID: 38855336 PMCID: PMC11157506 DOI: 10.1021/acsorginorgau.4c00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 06/11/2024]
Abstract
A recent reinvestigation of the gas-phase photoelectron spectra of Group 6 metal-metal quadruple-bonded complexes with scalar-relativistic DFT calculations showed that common exchange-correlation functionals reproduce the lowest ionization potentials in a semiquantitative manner. The finding encouraged us to undertake a DFT study of metal-metal quintuple bonds in a set of bisamidinato complexes with the formula MI 2[HC(NR)2]2 (M = Cr, Mo, W; R = H, Ph, 2,6-iPr2C6H3) and idealized D 2h symmetry. Scalar-relativistic OLYP/STO-TZ2P calculations indicated significant shifts in valence orbital energies among the three metals, which translate to lower first ionization potentials, higher electron affinities, and lower HOMO-LUMO gaps for the W complexes relative to their Cr and Mo counterparts. These differences are largely attributable to substantially larger relativistic effects in the case of tungsten relative to those of its lighter congeners.
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Affiliation(s)
- Abhik Ghosh
- Department
of Chemistry, UiT − The Arctic University
of Norway, N-9037 Tromsø, Norway
| | - Jeanet Conradie
- Department
of Chemistry, UiT − The Arctic University
of Norway, N-9037 Tromsø, Norway
- Department
of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
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2
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Crystallographic Evidence of η1-Coordination of Bulky Aminopyridine in Halide-Containing Iron (II) Complexes. CRYSTALS 2022. [DOI: 10.3390/cryst12050697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Reaction of N-(2,6-diisopropylphenyl)-[6-(2,4,6-triisopropylphenyl)-pyridine-2-yl]-amine (ApH) in equimolar ratio with anhydrous FeBr2 and FeI2 in tetrahydrofuran (THF) afforded, after workup in toluene, the first examples of mono(aminopyridine) Fe(II) complexes, [ApHFeBr(µ-Br)]2 (1) and [ApHFeI2(thf)] (2), respectively. X-ray analysis shows 1 to be dimeric, whereas compound 2 is monomeric. In both cases, aminopyridine ligands show rare η1-coordination to Fe through pyridine nitrogen atom. Compound 1 exhibits intramolecular N–H⋯Br hydrogen bonds [3.363 Å] with an N–H⋯Br angle of 158.84°. Hirshfeld surface and fingerprint plots identify the significant intermolecular interactions in the crystal network. Both compounds crystallized in the monoclinic space group. For compound 1, C2/c, the cell parameters are: a = 25.5750(5) Å, b = 10.5150(5) Å, c = 18.9610(8) Å, β = 97.892(5)°, V = 5050.7(3) A3, Z = 4. For compound 2, P21/c, the cell parameters are: a = 10.3180(7) Å, b = 16.1080(10) Å, c = 18.6580(11) Å, β = 102.038(5)°, V = 3032.8(3) A3, Z = 4.
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3
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Noor A. Coordination Chemistry of Bulky Aminopryridinates with Main Group and Transition Metals. Top Curr Chem (Cham) 2021; 379:6. [PMID: 33428048 DOI: 10.1007/s41061-020-00320-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 12/08/2020] [Indexed: 10/22/2022]
Abstract
The coordination chemistry of bidentate aminopyridinato ligands (ApH), in particular 2-aminopyridines, is a highly popular area of research. Due to easy accessibility and versatility, 2-aminopyridines have played a prominent role as alternatives to cyclopentadienyl ligands in coordination chemistry. Easily modifiable steric bulks and the ability for fine-tuning of electronic effects have allowed researchers to control not only the metal-to-ligand stoichiometry but also the properties of their metal complexes. Previously, ligand redistribution was frequently observed for ligands of small steric demands. Bulky aminopyridinato ligands refer to ligands that incorporate alkyl-substituted phenyl groups at the amine/amido nitrogen and at the sixth position of the pyridine ring. The steric crowding allowed the stabilization of transition metals in unusually low oxidation conditions. One of the remarkable developments, for example, is the stabilization of metal-metal quintuple bonds by these ligands, thus providing a diamagnetic platform to study such systems chemically. Application of metal aminopyridinates in homogeneous catalysis has also broadened considerably in recent years. This review provides a comprehensive account of advances made with such ligands since their development for main group and transition elements.
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Affiliation(s)
- Awal Noor
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, Al-Hassa, 31982, Saudi Arabia.
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4
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Noor A, Qayyum S, Schwarz S, Dietel T, Kempe R. Formation of a dimeric tungsten(i) complex via C-H activation. Dalton Trans 2020; 49:1992-1996. [PMID: 31984990 DOI: 10.1039/c9dt04847b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An aminopyridinato ligand stabilized and coordinatively unsaturated dimeric tungsten(0) complex having an electronic structure with six metal centred HOMOs (σ2,π2,π2,δ2,δ2, and δ*2) has been isolated and structurally characterized. Its reaction with a cryptand leads to a C-H bond activation of one of the isopropyl groups of the N-ligand to form a dimeric tungsten(i) complex.
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Affiliation(s)
- Awal Noor
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, 31982 Al-Hassa, Saudi Arabia. and Lehrstuhl Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany. and Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Sadaf Qayyum
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, 31982 Al-Hassa, Saudi Arabia. and Lehrstuhl Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany.
| | - Stefan Schwarz
- Lehrstuhl Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany.
| | - Thomas Dietel
- Lehrstuhl Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany.
| | - Rhett Kempe
- Lehrstuhl Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany.
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5
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Yen C, Lin Y, Hsueh H, Shieh Y, Wu P, Kuo T, Tsai Y. Chromium to chromium quintuple bonds in a trigonal lantern configuration. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201900181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chun‐Hsu Yen
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of MattersNational Tsing Hua University Hsinchu Taiwan
| | - Yi‐Deng Lin
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of MattersNational Tsing Hua University Hsinchu Taiwan
| | - Hsiang‐Wen Hsueh
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of MattersNational Tsing Hua University Hsinchu Taiwan
| | - Yun‐Jen Shieh
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of MattersNational Tsing Hua University Hsinchu Taiwan
| | - Pei‐Fang Wu
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of MattersNational Tsing Hua University Hsinchu Taiwan
| | - Ting‐Shen Kuo
- Department of ChemistryNational Taiwan Normal University Taipei Taiwan
| | - Yi‐Chou Tsai
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of MattersNational Tsing Hua University Hsinchu Taiwan
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6
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Zhao TT, Zhao XF, Bian JH, Tong WY, Jin B, Wang X, Yuan C, Wu YB. Computational design of species with ultrashort Be–Be distances using planar hexacoordinate carbon structures as the templates. Dalton Trans 2019; 48:6581-6587. [DOI: 10.1039/c9dt00630c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Replacing the planar hexacoordinate carbon in CX3M3+ species with the Be2 moiety leads to isoelectronic species with ultrashort Be–Be distances.
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Affiliation(s)
- Tao-Tao Zhao
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Xue-Feng Zhao
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Jian-Hong Bian
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Wen-Yan Tong
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Bo Jin
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Xiaotai Wang
- Department of Chemistry
- University of Colorado Denver
- Denver
- USA
| | - Caixia Yuan
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Yan-Bo Wu
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
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7
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Tong WY, Zhao TT, Zhao XF, Wang X, Wu YB, Yuan C. Neutral nano-polygons with ultrashort Be–Be distances. Dalton Trans 2019; 48:15802-15809. [DOI: 10.1039/c9dt03322j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations revealed that neutral polygons (E-Be2H3)n are the viable targets for realizing ultrashort metal–metal distances between main group metals.
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Affiliation(s)
- Wen-Yan Tong
- The Key Laboratory of Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Tao-Tao Zhao
- The Key Laboratory of Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Xue-Feng Zhao
- The Key Laboratory of Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Xiaotai Wang
- The Key Laboratory of Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Yan-Bo Wu
- The Key Laboratory of Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Caixia Yuan
- The Key Laboratory of Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
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8
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Zhao XF, Yuan C, Li SD, Wu YB, Wang X. Simulating the effect of a triple bond to achieve the shortest main group metal–metal distance in diberyllium complexes: a computational study. Dalton Trans 2018; 47:14462-14467. [DOI: 10.1039/c8dt02683a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Ne → Be2H3 ← Ne]+ represents the first global energy minimum having a main group metal–metal distance under 1.700 Å.
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Affiliation(s)
- Xue-Feng Zhao
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- People's Republic of China
| | - Caixia Yuan
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- People's Republic of China
| | - Si-Dian Li
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- People's Republic of China
| | - Yan-Bo Wu
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- People's Republic of China
| | - Xiaotai Wang
- Department of Chemistry
- University of Colorado Denver
- Denver
- USA
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9
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Qin ZZ, Wang Q, Yuan C, Yang YT, Zhao XF, Li D, Liu P, Wu YB. Combining covalent bonding and electrostatic attraction to achieve highly viable species with ultrashort beryllium–beryllium distances: a computational design. Dalton Trans 2018. [DOI: 10.1039/c7dt04897a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A stabilization strategy was applied to species with ultrashort Be–Be distances by modifying their high energy π-orbital(s).
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Affiliation(s)
- Zhen-Zhen Qin
- Key Lab of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Qiang Wang
- State Key Lab of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Caixia Yuan
- Key Lab of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Yun-Tao Yang
- Key Lab of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Xue-Feng Zhao
- Key Lab of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
| | - Debao Li
- State Key Lab of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Ping Liu
- State Key Lab of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yan-Bo Wu
- Key Lab of Materials for Energy Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan
- China
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10
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Alvarez MA, Casado-Ruano M, García ME, García-Vivó D, Ruiz MA. Structural and Chemical Effects of the PtBu2 Bridge at Unsaturated Dimolybdenum Complexes Having Hydride and Hydrocarbyl Ligands. Inorg Chem 2017; 56:11336-11351. [DOI: 10.1021/acs.inorgchem.7b01773] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Angeles Alvarez
- Departamento de Química Orgánica
e Inorgánica/IUQOEM, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Melodie Casado-Ruano
- Departamento de Química Orgánica
e Inorgánica/IUQOEM, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - M. Esther García
- Departamento de Química Orgánica
e Inorgánica/IUQOEM, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Daniel García-Vivó
- Departamento de Química Orgánica
e Inorgánica/IUQOEM, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Miguel A. Ruiz
- Departamento de Química Orgánica
e Inorgánica/IUQOEM, Universidad de Oviedo, E-33071 Oviedo, Spain
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11
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Curado N, Carrasco M, Campos J, Maya C, Rodríguez A, Ruiz E, Álvarez S, Carmona E. An Unsaturated Four-Coordinate Dimethyl Dimolybdenum Complex with a Molybdenum-Molybdenum Quadruple Bond. Chemistry 2016; 23:194-205. [DOI: 10.1002/chem.201604618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Natalia Curado
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla; Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Mario Carrasco
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla; Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla; Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Celia Maya
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla; Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Amor Rodríguez
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla; Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional; Universitat de Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
| | - Santiago Álvarez
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional; Universitat de Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla; Avda. Américo Vespucio, 49 41092 Sevilla Spain
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12
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Yuan C, Zhao XF, Wu YB, Wang X. Ultrashort Beryllium−Beryllium Distances Rivalling Those of Metal−Metal Quintuple Bonds Between Transition Metals. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609455] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Caixia Yuan
- The Key Lab of Energy Conversion and Storage of Shanxi Province and the Key Lab of Chemical Biology and Molecular Engineering of the Ministry of Education of China, Institute of Molecular Science; Shanxi University; Taiyuan Shanxi 030006 P.R. China
| | - Xue-Feng Zhao
- The Key Lab of Energy Conversion and Storage of Shanxi Province and the Key Lab of Chemical Biology and Molecular Engineering of the Ministry of Education of China, Institute of Molecular Science; Shanxi University; Taiyuan Shanxi 030006 P.R. China
| | - Yan-Bo Wu
- The Key Lab of Energy Conversion and Storage of Shanxi Province and the Key Lab of Chemical Biology and Molecular Engineering of the Ministry of Education of China, Institute of Molecular Science; Shanxi University; Taiyuan Shanxi 030006 P.R. China
| | - Xiaotai Wang
- Department of Chemistry; University of Colorado Denver; Campus Box 194, P.O. Box 173364 Denver CO 80217-3364 USA
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13
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Yuan C, Zhao XF, Wu YB, Wang X. Ultrashort Beryllium−Beryllium Distances Rivalling Those of Metal−Metal Quintuple Bonds Between Transition Metals. Angew Chem Int Ed Engl 2016; 55:15651-15655. [DOI: 10.1002/anie.201609455] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Caixia Yuan
- The Key Lab of Energy Conversion and Storage of Shanxi Province and the Key Lab of Chemical Biology and Molecular Engineering of the Ministry of Education of China, Institute of Molecular Science; Shanxi University; Taiyuan Shanxi 030006 P.R. China
| | - Xue-Feng Zhao
- The Key Lab of Energy Conversion and Storage of Shanxi Province and the Key Lab of Chemical Biology and Molecular Engineering of the Ministry of Education of China, Institute of Molecular Science; Shanxi University; Taiyuan Shanxi 030006 P.R. China
| | - Yan-Bo Wu
- The Key Lab of Energy Conversion and Storage of Shanxi Province and the Key Lab of Chemical Biology and Molecular Engineering of the Ministry of Education of China, Institute of Molecular Science; Shanxi University; Taiyuan Shanxi 030006 P.R. China
| | - Xiaotai Wang
- Department of Chemistry; University of Colorado Denver; Campus Box 194, P.O. Box 173364 Denver CO 80217-3364 USA
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15
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A Family of Multiply Bonded Dimolybdenum Boraamidinates with the Formal Mo−Mo Bond Orders of 3, 4, 4.5, and 5. Angew Chem Int Ed Engl 2016; 55:11614-8. [DOI: 10.1002/anie.201605543] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/11/2016] [Indexed: 11/07/2022]
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16
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A Family of Multiply Bonded Dimolybdenum Boraamidinates with the Formal Mo−Mo Bond Orders of 3, 4, 4.5, and 5. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605543] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Harisomayajula NVS, Chen HG, Kuo TS, Tsai YC. Reductive Cleavage of Acyl Halides to Carboxylato Alkylidyne Complexes from Their Reactions with the Quintuply Bonded Dimolybdenum Amidinate. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. V. Satyachand Harisomayajula
- Department
of Chemistry and Frontier Research Centre on Fundamental and Applied
Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Han-Gung Chen
- Department
of Chemistry and Frontier Research Centre on Fundamental and Applied
Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ting-Shen Kuo
- Department
of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Yi-Chou Tsai
- Department
of Chemistry and Frontier Research Centre on Fundamental and Applied
Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
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18
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Campos J, López-Serrano J, Peloso R, Carmona E. Methyl Complexes of the Transition Metals. Chemistry 2016; 22:6432-57. [PMID: 26991740 DOI: 10.1002/chem.201504483] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 01/11/2023]
Abstract
Organometallic chemistry can be considered as a wide area of knowledge that combines concepts of classic organic chemistry, that is, based essentially on carbon, with molecular inorganic chemistry, especially with coordination compounds. Transition-metal methyl complexes probably represent the simplest and most fundamental way to view how these two major areas of chemistry combine and merge into novel species with intriguing features in terms of reactivity, structure, and bonding. Citing more than 500 bibliographic references, this review aims to offer a concise view of recent advances in the field of transition-metal complexes containing M-CH3 fragments. Taking into account the impressive amount of data that are continuously provided by organometallic chemists in this area, this review is mainly focused on results of the last five years. After a panoramic overview on M-CH3 compounds of Groups 3 to 11, which includes the most recent landmark findings in this area, two further sections are dedicated to methyl-bridged complexes and reactivity.
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Affiliation(s)
- Jesús Campos
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Joaquín López-Serrano
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Riccardo Peloso
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain.
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Ventura K, Prat JR, Aguirre Quintana LM, Goos A, Villagran D. Unprecedented W2(0) quadruply bonded complex supported by π-donor ligands. Chem Commun (Camb) 2016; 52:3974-6. [PMID: 26886579 DOI: 10.1039/c5cc09972b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quadruply bonded complex W2(DippF)2K2 with a W2(0) core was synthesized and structurally characterized. The observed W-W distance of 2.407(1) Å and DFT calculations are consistent to the unprecedented electronic structure in D(2h) symmetry of σ(2)π(2)π(2)δ(2)δ(2)δ*(2) where the HOMO is the δ* orbital.
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Affiliation(s)
- K Ventura
- Department of Chemistry, The University of Texas at El Paso, El Paso TX, USA.
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20
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Falceto A, Theopold KH, Alvarez S. Cr-Cr Quintuple Bonds: Ligand Topology and Interplay Between Metal-Metal and Metal-Ligand Bonding. Inorg Chem 2015; 54:10966-77. [PMID: 26502158 DOI: 10.1021/acs.inorgchem.5b02059] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chromium-chromium quintuple bonds seem to be approaching the lower limit for their bond distances, and this computational density functional theory study tries to explore the geometrical and electronic factors that determine that distance and to find ways to fine-tune it via the ligand choice. While for monodentate ligands the Cr-Cr distance is predicted to shorten as the Cr-Cr-L bond angle increases, with bridging bidentate ligands the trend is the opposite, since those ligands with a larger number of spacers between the donor atoms favor larger bond angles and longer bond distances. Compared to Cr-Cr quadruple bonds, the quintuple bonding in Cr2L2 compounds (with L a bridging bidentate N-donor ligand) involves a sophisticated mechanism that comprises a positive pyramidality effect for the σ and one π bond, but a negative effect for one of the δ bonds. Moreover, the shorter Cr-Cr distances produce a mismatch of the bridging ligand lone pairs and the metal acceptor orbitals, which results in a negative correlation of the Cr-Cr and Cr-N bond distances in both experimental and calculated structures.
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Affiliation(s)
- Andrés Falceto
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona , Martí i Franquès 1, 08028 Barcelona, Spain
| | - Klaus H Theopold
- Department of Chemistry and Biochemistry, Center for Catalytic Science and Technology, University of Delaware , Newark, Delaware 19716, United States
| | - Santiago Alvarez
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona , Martí i Franquès 1, 08028 Barcelona, Spain
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21
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Curado N, Carrasco M, Álvarez E, Maya C, Peloso R, Rodríguez A, López-Serrano J, Carmona E. Lithium Di- and Trimethyl Dimolybdenum(II) Complexes with Mo–Mo Quadruple Bonds and Bridging Methyl Groups. J Am Chem Soc 2015; 137:12378-87. [DOI: 10.1021/jacs.5b07899] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Natalia Curado
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Mario Carrasco
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Celia Maya
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Riccardo Peloso
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Amor Rodríguez
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Joaquín López-Serrano
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Ernesto Carmona
- Instituto de Investigaciones
Químicas (IIQ), Departamento de Química Inorgánica
and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio, 49, 41092 Sevilla, Spain
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Lu DY, Chen PPY, Kuo TS, Tsai YC. The MoMo Quintuple Bond as a Ligand to Stabilize Transition-Metal Complexes. Angew Chem Int Ed Engl 2015; 54:9106-10. [DOI: 10.1002/anie.201504414] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Indexed: 11/09/2022]
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23
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Lu DY, Chen PPY, Kuo TS, Tsai YC. The MoMo Quintuple Bond as a Ligand to Stabilize Transition-Metal Complexes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504414] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Noor A, Schwarz S, Kempe R. Low-Valent Aminopyridinato Chromium Methyl Complexes via Reductive Alkylation and via Oxidative Addition of Iodomethane by a Cr–Cr Quintuple Bond. Organometallics 2015. [DOI: 10.1021/om501230g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Awal Noor
- Lehrstuhl für Anorganische
Chemie II (Catalyst Design), Universität Bayreuth, 95440 Bayreuth, Germany
| | - Stefan Schwarz
- Lehrstuhl für Anorganische
Chemie II (Catalyst Design), Universität Bayreuth, 95440 Bayreuth, Germany
| | - Rhett Kempe
- Lehrstuhl für Anorganische
Chemie II (Catalyst Design), Universität Bayreuth, 95440 Bayreuth, Germany
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