title: Tuning the Luminescent Properties of a Ag/Au Tetranuclear Complex Featuring Metallophilic Interactions via Solvent-Dependent Structural Isomerization.
abstract: In this paper the reaction products of the basic gold(I) species [Au(C6Cl5)2]-against the acid salt Ag(OClO3) in the presence of the S-donor macrocyclic ligand 1,4,7-trithiacyclononane ([9]aneS3) are studied in different solvents. Two different isomers of stoichiometry [{Au(C6Cl5)2}Ag([9]aneS3)]2were isolated depending on the solvent used, dichloromethane or tetrahydrofuran, which show different luminescence in the solid state. X-ray diffraction studies of these compounds reveals that both show the same heteropolynuclear Ag···Au···Au···Ag system but with different Au···Au interaction distances and different relative positions of the cationic fragment [Ag([9]aneS3)]+in the structure with respect the bimetallic Au···Au core. This work includes a study of the optical properties of both isomers, as well as time-dependent density functional theory calculations that were performed to determine the origin of their different luminescence.
authors: Departamento de Química, Universidad de La Rioja. Centro de Investigación de Síntesis Química. Complejo Científico-Tecnológico , 26004 Logroño, Spain.
authors: Rocío
authors: R
authors: Donamaría
authors: Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza , E-50009 Zaragoza, Spain.
authors: M Concepción
authors: MC
authors: Gimeno
authors: Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari , S.S. 554 Bivio per Sestu, 09042 Monserrato (CA), Italy.
authors: Vito
authors: V
authors: Lippolis
authors: Departamento de Química, Universidad de La Rioja. Centro de Investigación de Síntesis Química. Complejo Científico-Tecnológico , 26004 Logroño, Spain.
authors: José M
authors: JM
authors: López-de-Luzuriaga
authors: Departamento de Química, Universidad de La Rioja. Centro de Investigación de Síntesis Química. Complejo Científico-Tecnológico , 26004 Logroño, Spain.
authors: Miguel
authors: M
authors: Monge
authors: Departamento de Química, Universidad de La Rioja. Centro de Investigación de Síntesis Química. Complejo Científico-Tecnológico , 26004 Logroño, Spain.
authors: M Elena
authors: ME
authors: Olmos