Synthesis of bis(eta2-alkyne) Trinuclear Zwitterionic Platinum Hydride Complexes by Reaction of [trans-Pt(C6F5)2(C=CR)2]2- with the Solvento species [trans-PtH L2(acetone)]+

  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:
Organometallics

ISSN: 0276-7333

Año de publicación: 1996

Volumen: 15

Número: 7

Páginas: 1820-1825

Tipo: Artículo

SCOPUS: 2-s2.0-0012680529 WoS: WOS:A1996UD11100011 GOOGLE SCHOLAR

Otras publicaciones en: Organometallics

Repositorio institucional: lock_openAcceso abierto Editor

Resumen

The alkynylation of trans-[Pt(C6F5)2(tht)2] (tht = tetrahydrothiophene) with LiC≡CR in diethyl ether (R = Ph, SiMe3) or THF (R = tBu) leads to novel dianionic species [trans-Pt-(C6F5)2(C≡CR)2] 2- (R = Ph (1), SiMe3 (2), tBu (3)) which have been isolated as tetrabutylammonium salts. Treatment of (NBu4)2[trans-Pt(C6F5) 2(C≡CR)2] (R = Ph, SiMe3, tBu) with 2 equiv of cationic hydride reagents of the type [trans-PtHL2(acetone)]+ (L = PPh3, PEt3) in acetone form, via a ligand replacement, simple bis(η2-alkyne) trinuclear zwitterionic complexes trans,trans,trans-{[Pt(C6F5)2(μ-η 1:η2-C≡CR)2](PtHL2) 2} (R = Ph, L = PPh3 (4a), PEt3 (4b); R = SiMe3, L = PPh3 (5a), PEt3 (5b); R = tBu, L = PEt3 (6b)). The structure of complex 4b has been determined by X-ray diffraction methods.