Di-, tri- and tetra-nuclear gold(I) complexes with tris(diphenylphosphino)-methane or;methanide as ligand. Crystal structures of two modifications of [(O)Ph2PC(PPh2AuPPh2)2C-PPh2(O)].4CH2Cl2

  1. Fernández, E.J. 2
  2. Gimeno, M.C. 1
  3. Jones, P.G. 3
  4. Laguna, A. 1
  5. Laguna, M. 1
  6. López-De-Luzuriaga, J.M. 1
  1. 1 Instituto de Nanociencia y Materiales de Aragón
    info

    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  3. 3 Braunschweig University of Technology
    info

    Braunschweig University of Technology

    Brunswick, Alemania

    ROR https://ror.org/010nsgg66

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Revista:
Journal of the Chemical Society-Dalton Transactions

ISSN: 0300-9246

Año de publicación: 1993

Volumen: 22

Páginas: 3401-3406

Tipo: Artículo

DOI: 10.1039/DT9930003401 SCOPUS: 2-s2.0-37049085210 WoS: WOS:A1993MH69100020 GOOGLE SCHOLAR

Otras publicaciones en: Journal of the Chemical Society-Dalton Transactions

Resumen

The reaction of [Au(tht)2]ClO4 or [Au(acac)(PPh3)] (tht = tetrahydrothiophene, acac = acetylacetonate) with CH(PPh2)3 led to dinuclear complexes, [Ph2PCH(PPh2AuPPh2)2CHPPh 2][ClO4]2 or [Ph2PC(PPh2AuPPh2)2CPPh 2], with react further with [AuX(tht)] (X = C6F5 or Cl) or [Au(PPh3)(tht)]ClO4 to give tetranuclear cationic, [XAuPPh2CH(PPh2AuPPh2)2 CHPPh2AuX][ClO4]2 or [(Ph3P)AuPPh2C(PPh2AuPPh2) 2CPPh2Au(PPh3)][ClO4]2, or neutral complexes, [XAuPPh2C(PPh2AuPPh2)2CPPh 2AuX]. Trinuclear complexes, such as [CH(PPh2AuPPh2)3CH][ClO4] 3 or [CH{PPh2Au(C6F5)}3], were obtained by reaction of [Au(tht)2]ClO4 or [Au(C6F5)(tht)] with CH(PPh2)3. Oxidation of [Ph2PC(PPh2AuPPh2)2CPPh2] with H2O2 gives [(O)Ph2PC(PPh2AuPPh2)2CPPh 2(O)]. The structures of two forms of the latter compound have been established by X-ray crystallography. Both involve an eight-membered ring with a very short transannular gold-gold contact.