Mesitylgold(I) complexes. Crystal structures of NEt4[Au(mes)Cl] and [N(PPh3)2][(mes)Au(CN)Au(mes)]

  1. Usón, R. 2
  2. Laguna, A. 2
  3. Fernández, E.J. 1
  4. Ruiz-Romero, M.E. 1
  5. Jones, P.G. 4
  6. Lautner, J. 3
  1. 1 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

  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 University of Göttingen
    info

    University of Göttingen

    Gotinga, Alemania

    ROR https://ror.org/01y9bpm73

  4. 4 Braunschweig University of Technology
    info

    Braunschweig University of Technology

    Brunswick, Alemania

    ROR https://ror.org/010nsgg66

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Revue:
Journal of the Chemical Society-Dalton Transactions

ISSN: 0300-9246

Année de publication: 1989

Volumen: 11

Pages: 2127-2131

Type: Article

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DOI: 10.1039/DT9890002127 SCOPUS: 2-s2.0-37049080818 WoS: WOS:A1989CA69000009 GOOGLE SCHOLAR

D'autres publications dans: Journal of the Chemical Society-Dalton Transactions

Résumé

Arylation of [AuCl(tht)] (tht = tetrahydrothiophene) with [{Ag(mes)}4] (mes = mesityl) gives [{Au(mes)}5]. Both the silver and gold complex can be used for the syntheses of mono- or bi-nuclear cationic, neutral, or anionic mesitylgold complexes of the form Au(mes) L [L = PPh3, PPh2Me, P(OPh)3, or 1/2(Ph2PCH2PPh2), [{Au(PPh3)}2(μ-mes)]CIO4, Q[Au(mes)X] (Q = NEt4 or NBu4; X = C6F5 or Cl), or [N(PPh3)2][(mes)Au(CN)Au(mes)]. The structures of NEt4[Au (mes) Cl] and [N(PPh3)2][(mes)Au(CN)Au(mes)] have been determined by single-crystal X-ray methods. The complex NEt4[Au(mes)Cl] crystallizes in space group P21/n with a = 8.526(1), b = 13.917(2), c = 16.457(2) Å, β = 101.14(1)°, and Z = 4; R 0.038 for 2 656 unique observed reflections. The Au-Cl bond is long and the Au-C bond short [2.328(2) and 2.018(7) Å respectively]. The complex [N(PPh3)2][(mes)Au(CN)Au(mes)] crystallizes in space group C2/c with a = 27.702(8), b = 12.318(4), c = 20.501(6) Å, β = 135.61(1)°, and Z = 4; R 0.037 for 3 576 unique observed reflections. The anion and the cation both have imposed crystallographic two-fold symmetry, and the bridging CN group must therefore be disordered. The Au-C(mesityl) bond length is 2.035(11) Å.