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Title

Emission tuning in dinuclear gold complexes with diphosphanes containing alkyne and/or oligophenylene spacers

AuthorsCámara, Jéssica; Crespo, Olga ; Gimeno, M. Concepción ; Laguna, Antonio ; Ospino, Isaura
Issue Date2012
PublisherRoyal Society of Chemistry
CitationDalton Transactions 41(45): 13891-13898 (2012)
AbstractReaction of the diphosphanes PP [PPh2(C6H4)nPPh2 (n = 1–5) and PPh2CC(C6H4)CCPPh2] with [AuX(tht)] (X = Cl, C6F5) in a 1:2 molar ratio affords dinuclear luminescent complexes of formula [(AuX)2(PP)]. The photoemissive properties of these complexes are mainly controlled by the presence of the diphosphane ligand, specifically by the phenylene spacers of the diphosphanes. At room temperature fluorescent (IL) processes dominate the emissions, both in solution and in the solid state. Frozen solutions or solids at 77 K display dual emissions or only one emission attributed to ligand to ligand charge transfer (LL′CT) transitions from the auxiliary ligand (L) to phenylene spacers of the diphosphane (L′).
URIhttp://hdl.handle.net/10261/64627
DOI10.1039/C2DT31019H
Identifiersdoi: 10.1039/C2DT31019H
issn: 1477-9226
e-issn: 1477-9234
Appears in Collections:(ISQCH) Artículos
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