Homo- and Hetero-dinuclear Complexes of Palladium and Platinum containing Phosphinoacetylene and/or Chloride as Bridging Ligands

  1. Forniés, J. 2
  2. Lalinde, E. 1
  3. Martín, A. 2
  4. Moreno, M.T. 1
  5. Welch, A.J. 3
  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
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    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

  3. 3 Heriot-Watt University
    info

    Heriot-Watt University

    Edimburgo, Reino Unido

    ROR https://ror.org/04mghma93

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Revista:
Journal of the Chemical Society-Dalton Transactions

ISSN: 0300-9246

Año de publicación: 1995

Volumen: 8

Páginas: 1333-1340

Tipo: Artículo

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DOI: 10.1039/DT9950001333 SCOPUS: 2-s2.0-37049070227 WoS: WOS:A1995QV58700012 GOOGLE SCHOLAR

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

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Resumen

Reactions between the diphenylacetylenephosphine complexes cis-[M′Cl2(PPh2C≡CR)2] (M′ = Pt or Pd, R = Ph or But) and cis-[M(C6F5) 2(thf)2] (M = Pt or Pd; thf = tetrahydrofuran) in a 1:1 molar ratio have been studied. Three types of products have been obtained: (a) asymmetric homo- and hetero-dinuclear complexes gem-[(C6F 5)2M(μ-Cl)2M′ (PPh2C≡ CR)2], (b) symmetric trans-palladium derivatives [{Pd(μ-Cl) (C6F5) (PPh2C≡CR)}2] and (c) the unusual chloride and diphenyl (phenylethynyl) phosphine bridged dinuclear compounds [(C6F5)2Pt(μ-Cl)(μ-PPh 2C≡CPh)M′Cl(PPh2C≡CPh)]. The complexes have been characterised by microanalysis, IR and NMR spectroscopy and the molecular structure of [(C6F5)2Pt(μ-Cl) (μ-PPh2C≡CPh)PtCl(PPh2C≡CPh)] ·OC4H8. The NMR spectral data (1H, 19F and 31P) indicate that, in solution, mixtures of isomers [(C6F5)2Pt(μ-Cl)2M′ (PPh2C≡CR)2] and [(C6F5) 2Pt(μ-Cl)-(μ-PPh2C≡CPh)M′Cl(PPh 2C≡CPh)] are present.