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Tuning the luminescent properties of a Ag/Au tetranuclear complex featuring metallophilic interactions via solvent-dependent structural isomerization

AutorDonamaría, Rocío; Gimeno, M. Concepción ; Lippolis, Vito; López-de-Luzuriaga, José M.; Monge, Miguel; Olmos, M. Elena
Fecha de publicación2016
EditorAmerican Chemical Society
CitaciónInorganic Chemistry 55(21): 11299-11310 (2016)
ResumenIn this paper the reaction products of the basic gold(I) species [Au(CCl)] against the acid salt Ag(OClO) in the presence of the S-donor macrocyclic ligand 1,4,7-trithiacyclononane ([9]aneS) are studied in different solvents. Two different isomers of stoichiometry [{Au(CCl)}Ag([9]aneS)] were 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]aneS)] 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.
URIhttp://hdl.handle.net/10261/155756
DOI10.1021/acs.inorgchem.6b01819
Identificadoresdoi: 10.1021/acs.inorgchem.6b01819
e-issn: 1520-510X
issn: 0020-1669
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