Novel Heterotrinuclear, PtAg2, and Hexanuclear, Pt2Ag4,Compounds containing Bridging Alkynyl Groups. Crystal Structure of [Pt2Ag4(C6F5)4(mu3-eta2-C=CPh)4(PPh3)2].0.5CH2Cl2

  1. Ara, I. 1
  2. Forniés, J. 1
  3. Lalinde, E. 2
  4. Moreno, M.T. 2
  5. Tomás, 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

Revista:
Journal of the Chemical Society-Dalton Transactions

ISSN: 0300-9246

Año de publicación: 1995

Volumen: 14

Páginas: 2397-2405

Tipo: Artículo

DOI: 10.1039/DT9950002397 SCOPUS: 2-s2.0-37049070047 WoS: WOS:A1995RL31000010 GOOGLE SCHOLAR

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

Resumen

Treatment of the polymeric derivatives [{PtAg2(C6F5)2(C≡CR) 2}n] (R = Ph or But) with 2 molar equivalents of neutral ligands L (Ag:L 1:1) afforded the new more soluble trinuclear mixed-ligand complexes [PtAg2(C6F5)2(C≡CR) 2L2] 1-8 (L = PPh3, PEt3, CNBut or C5H5N). Analogous reactions with 1 molar equivalent of L (Ag:L 2:1) produced, however, only a partial depolymerization of [{PtAg2(C6F5)2(C≡CR) 2}n] to give the hexanuclear complexes [Pt2Ag4(C6F5) 4(C≡CR)4L2] 9-16. Compounds 9-12 have also been obtained by treatment of the binuclear derivatives [NBu4][Pt(C6F5) 2(μ-C≡CR)2AgL] with AgClO4 (1:1 molar ratio) in acetone. Similar reactions of [{PtAg2(C6F5)2(C≡CR) 2}n] with 1 or 0.5 equivalent of 1,2-bis(diphenylphosphino)ethane (dppe) yielded insoluble complexes of composition [{PtAg2(C6F5)2(C≡CR) 2(dppe)}n] 17, 18 or [{Pt2Ag4(C6F5) 4(C≡CR)4(dppe)}n] 19, 20 which are thought to be polymeric. The crystal structure of [Pt2Ag4(C6F5)4(μ 3-η2-C≡CPh)4(PPh3) 2]·0.5CH2Cl29·0.5CH 2Cl2 has been determined by X-ray diffraction methods.