Luminescent Alkynyl Platinum-Cadmiun Complexes: Structural Characterization of an Unusual Decanuclear Cluster [Pt4Cd6(C=CPh)4(mu-C=CPh)12(mu3-OH)4]

  1. Forniés, J. 2
  2. Gómez, J. 1
  3. Lalinde, E. 1
  4. 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

Revue:
Inorganic Chemistry

ISSN: 0020-1669

Année de publication: 2001

Volumen: 40

Número: 21

Pages: 5415-5419

Type: Article

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DOI: 10.1021/IC010433I PMID: 11578188 SCOPUS: 2-s2.0-0035828933 WoS: WOS:000171460300020 GOOGLE SCHOLAR

D'autres publications dans: Inorganic Chemistry

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Résumé

The reaction of (NBu4)2[Pt(C≡CPh)4] with Cd(ClO4)2·6H2O in a 1:1 molar ratio yields a white solid [PtCd(C≡CPh)4]n 1 (75% yield) together with yellow crystals of a very unusual decanuclear platinum-cadmium cluster [Pt4Cd6(C≡CPh)4(μ-C≡CPh) 12(μ3-OH)4] 2 in low yield. Slow diffusion of acetonic solutions of the starting materials under aerobic conditions only produces crystals of 2 which have been shown by an X-ray analysis to be composed of a big hexanuclear cation [Cd6(μ3-OH)4]8+ and four [Pt(C≡CPh)4]2- anions, held together by Pt···Cd and π···Cd acetylide interactions. On the other hand, treatment of the insoluble product 1 with 1 equiv of NBu4X yields tetranuclear mixed-metal soluble complexes (NBu4)2[{Pt(μ-C≡CPh)4} 2(CdX)2] (X=Cl A, Br 3, CN 4), which contain two platinate fragments connected by two CdX units through Pt···Cd and mainly Cd···Cα interactions. All complexes are strongly emissive in the solid state at room temperature.