Synthesis and Characterization of Cationic Heteronuclear Complexes of Platinum(II) and Silver(I) Bridged by Alkynyl Ligands

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

Revista:
Journal of Organometallic Chemistry

ISSN: 0022-328X

Año de publicación: 1996

Volumen: 510

Número: 1-2

Páginas: 63-70

Tipo: Artículo

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DOI: 10.1016/0022-328X(95)05832-A SCOPUS: 2-s2.0-0030596353 WoS: WOS:A1996UE06700009 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Organometallic Chemistry

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Resumen

The dialkynyl complexes cis-[Pt(C ≡ CR)2L2] [R = Ph, L2 = 2PPh3, 2PEt3, dppe (dppe = 1,2-bis(diphenylphosphino)ethane]; R =tBu, L2 = 2PPh3, dppe) react with silver perchlorate in a molar ratio 1:0.5 to give platinum-silver perchlorate salts of the type [Pt2Ag(C ≡ CR)4L4]ClO4) in excellent yield. The X-ray crystal structure of [Pt2Ag(C ≡ CPh)4(PPh3)4](ClO4) 1 shows that the cation is formed by two nearly orthogonal cis-[Pt(C ≡ CPh)2(PPh3)2] units connected through a silver cation which is unsymmetrically π-bonded to all four acetylene fragments. Similar reactions of cis-[Pt(C ≡ CR)2L2] with one equivalent of AgClO4 afford cationic complexes of general formula [PtAg(C ≡ CR)2L2](ClO4), which are believed to be salts, [Pt2Ag2(C ≡ CR)4L4](ClO4)2.