Synthesis of Heterometallic Species with (Ph2P)3CH or (Ph2P)3C-. Crystal Structures of [Mo(CO)4{(PPh2)2CHPPh2AuCl}], [Mo(CO)4{(PPh2)2CHPPh2Au(C6F5)}] and [NBu4][Mo(CO)4{(PPh2)2CPPh2Au(C6F5)}].

  1. Fernández, E.J. 1
  2. Gimeno, M.C. 2
  3. Jones, P.G. 3
  4. Laguna, A. 2
  5. Laguna, M. 2
  6. Olmos, E. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Instituto de Nanociencia y Materiales de Aragón
    info

    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

  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: 1994

Volumen: 19

Páginas: 2891-2898

Tipo: Artículo

DOI: 10.1039/DT9940002891 SCOPUS: 2-s2.0-51149204453 WoS: WOS:A1994PL99800024 GOOGLE SCHOLAR

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

Resumen

Full title: Synthesis of heterometallic species with (Ph2P)3CH or (Ph2P)3C-. Crystal structures of [Mo(CO)4{(PPh2)2CHPPh2AuCl}], [Mo(CO)4{(PPh2)2 CHPPh2Au(C6F5)}] and [NBu]4[Mo(CO)4{(PPh2)2CPPh 2Au(C6F5)}]. Treatment of [M(CO)4{(PPh2)2CHPPh2}] (M = Cr a, Mo b or W c) with 1 equivalent of [AuX(tht)] or [Au(tht)(PPh3)]ClO4 (tht = tetrahydrothiophene) afforded the neutral binuclear complexes [M(CO)4{(PPh2)2CHPPh2AuX}] (X = Cl 1a-1c or C6F5 2a-2c), or the cationic derivatives [M(CO)4{(PPh2)2CHPPh2Au(PPh 3)}]ClO4 3a-3c. Complexes 2 and 3 are readily deprotonated by [NBu4][acac] (acac = acetylacetonate) to give the tris(diphenylphosphino)methanide species [NBu4][M(CO)4{(PPh2)2CPPh 2Au(C6F5)}] 4a-4c and [M(CO)4{(PPh2)2CPPh2Au(PPh 3)}] (5a-5c). Tri-nuclear compounds of the type [NBu4] [{M(CO)4[(PPh2)2CPPh2]} 2Au] 6a-6c were obtained by reaction of [M(CO)4{(PPh2)2CHPPh2] with [NBu4][Au(acac)2] in the ratio 2:1. Single-crystal structure determinations were performed for compounds 1b, 2b and 4b. In the neutral complexes 1b and 2b the atoms C(2) (carbonyl), Mo, P(1) (co-ordinated to Au) and Au are essentially coplanar; the principal structural differences between the neutral and anionic (4b) complexes are the shorter P-C bonds and a rotation about the C-P(1) bond in the latter complex.