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Synthesis, structure, and bonding of novel homodinuclear cobalt and nickel borylene complexes.
Braunschweig, Holger; Christ, Bastian; Colling-Hendelkens, Miriam; Forster, Melanie; Götz, Kathrin; Kaupp, Martin; Radacki, Krzysztof; Seeler, Fabian.
Afiliação
  • Braunschweig H; Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany. h.braunschweig@mail.uni-wuerzburg.de
Chemistry ; 15(29): 7150-5, 2009 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-19544503
ABSTRACT
Herein we report for the first time full details on the synthesis and structural characterization of novel homodinuclear bridging cobalt and nickel borylene complexes containing bridging carbonyl ligands, an unusual coordination motif rarely before observed for homodinuclear borylene complexes. Furthermore, the homodinuclear nickel complex represents the first instance of a nickel borylene complex. Quantum chemical analyses of charge-density topology, electron localization function (ELF) and natural charges indicate the absence of direct metal-metal bonds in both the cobalt and nickel systems, in contradiction with electron counting. The topology of the Laplacian of the electron density and of the ELF around the bridging boron atom is consistent with a bis-metallo-substituted borane situation for the dicobalt system, but with a three-center-bonding borylene for the dinickel complex.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Chemistry Assunto da revista: Química Ano de publicação: 2009 Tipo de documento: Artigo País de afiliação: Alemanha