A Study of the Interactions in a Extended Unsupported Gold-Silver Chain.

  1. Fernández, E.J. 1
  2. Laguna, A. 2
  3. López-de-Luzuriaga, J.M. 1
  4. Monge, M. 1
  5. Pyykkö, P. 3
  6. Runeberg, N. 3
  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

  3. 3 University of Helsinki
    info

    University of Helsinki

    Helsinki, Finlandia

    ROR https://ror.org/040af2s02

Mostrar afiliaciones +
Revista:
European Journal of Inorganic Chemistry

ISSN: 1434-1948

Año de publicación: 2002

Volumen: 3

Páginas: 750-753

Tipo: Artículo

SCOPUS: 2-s2.0-0036194999 WoS: WOS:000174200800032 GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: European Journal of Inorganic Chemistry

Repositorio institucional: lock_openAcceso abierto Editor

Resumen

The complex [Ag(Py)3][Au(C6F5)2]·Py (1) (Py = pyridine) has been prepared by the reaction of NBu4[Au(C6F5)2] with AgClO4 in the presence of pyridine. The crystallographic measurements indicate the presence of an extended unsupported one-dimensional chain of alternating gold and silver atoms. This arrangement is due to the formation of molecular Au-Ag ion pairs, to the π-stacking of C6F5 and pyridine arene ligands and to the packing effects that lead to molecular ion pairs at short distance. Theoretical calculations based on approximate experimental distances and angles reveal the presence of both metallophilic Au1-Ag1 and aromatic C6F5-pyridine interactions. From a theoretical point of view the nature of the intermetallic attraction arises from both an ionic contribution and from dispersion-type correlation effects; the aromatic interaction is mainly due to dispersion-type correlation effects.