Synthesis, of novel Heterotetrametallic (d6-d10-d8) Polyalkynyl Complexes Starting from heterobimetallic Chloride-Bridged (d6-d8)Compounds

  1. Ara, I. 2
  2. Berenguer, J.R. 1
  3. Eguizábal, E. 1
  4. Forniés, J. 2
  5. Lalinde, E. 1
  6. Martín, A. 2
  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

Journal:
European Journal of Inorganic Chemistry

ISSN: 1434-1948

Year of publication: 2001

Volume: 6

Pages: 1631-1640

Type: Article

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SCOPUS: 2-s2.0-0035006052 WoS: WOS:000169188400034 GOOGLE SCHOLAR

More publications in: European Journal of Inorganic Chemistry

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Abstract

The reaction between the half-sandwich cyclopentadienyl complexes [M(η5-C5Me5)Cl2(PEt 3)] (M = Rh, Ir) and [cis-M′(C6F5)2(thf)2] (M′ = Pt, Pd; thf = tetrahydrofuran) affords the corresponding chloride-bridged heterobinuclear Rh,Ir/Pt,Pd complexes [(PEt3)(η5-C5Me5)M(μ-Cl) 2M′(C6F5)2] (1-4). In contrast, similar reactions with the chloro-bridged binuclear compounds [{M(η5-C5Me5)Cl(μ-Cl)}2] (M = Rh, Ir) lead instead to the unexpected mixed salt complexes {Cp*M(μ-Cl)3MCp*}2[{(C6F 5)2M′ (μ-Cl)}2] (M = Rh, Ir; M′ = Pt, Pd) (5-8) as a result of chloride transfer. The structures of [(PEt3)(η5- C5Me5)Rh(μ-Cl)2Pt(C6F 5)2] (1) and {Cp*Rh(μ-Cl)3RhCp* }2[{(C6F5)2Pd(μ-Cl)}2] (6) have been determined by X-ray diffraction analyses. The reactivity of the new chloride-bridged heterobinuclear compounds 1-4 towards the alkynylating agents [M″(C≡CR)]n (M″ = Cu, Ag) has also been investigated: a new type of tetranuclear product, [(PEt3)Cp* M(μ-1κCα:η2-C≡CPh) 2M″2(μ-4κCα:η 2-C≡CPh)2Pt(C6F5) 2] (M = Rh, Ir; M″ = Cu, Ag) (9-12), was obtained, and fully characterized in the case of complex [(PEt3)Cp*Rh(μ-1κCα:η 2-C≡CPh)2Cu2(μ-4κC α:η2-C≡CPh)2Pt(C 6F5)2] (9).