Vapochromism in Complexes of Stoichiometry [Au2Ag2R4L2]n

  1. Fernández, E.J.
  2. Laguna, A. 2
  3. López-de-Luzuriaga, J.M.
  4. Olmos, M.E.
  5. Puelles, R.C.
  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:
Zeitschrift für Naturforschung. B, A Journal of Chemical Sciences

ISSN: 0932-0776

Año de publicación: 2009

Volumen: 64

Número: 11/12/2010

Páginas: 1500-1512

Tipo: Artículo

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DOI: 10.1515/ZNB-2009-11-1234 SCOPUS: 2-s2.0-73849150939 WoS: WOS:000273712900034 GOOGLE SCHOLAR

Otras publicaciones en: Zeitschrift für Naturforschung. B, A Journal of Chemical Sciences

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Resumen

Reaction of [NBu4][Au(C6X5)2] (C6X5 = 3,5-C6Cl2F3, C6Cl5) with AgOClO3 in an Et 2O/CH2Cl2 mixture affords [Au 2Ag2(C6X5)4(OEt 2)2]n [C6X5 = 3,5-C 6Cl2F3 (1a), C6Cl5 (1b)]. These compounds react with tetrahydrofuran, acetone, acetonitrile or toluene in solution and in the gas phase (with toluene only in solution) to the new complexes [Au2Ag2(C6X5) 4L2]n [L = THF (2a, 2b), (CH3) 2CO (3a, 3b), CH3CN (4a, 4b), C7H8 (5a, 5b)]. The crystal structures of 2a and 5a have been determined by X-ray diffraction methods, showing polymeric chains formed by the union of tetranuclear Au2Ag2 units via aurophilic interactions. The thermal stability and the vapochromic behaviour of these complexes have been studied by thermogravimetric analysis (TGA), X-ray powder diffraction and FT-IR spectroscopy. © 2009 Verlag der Zeitschrift für Naturforschung, Tübingen.