title: Emission tuning in dinuclear gold complexes with diphosphanes containing alkyne and/or oligophenylene spacers.
abstract: Reaction of the diphosphanes P∼P [PPh(2)(C(6)H(4))(n)PPh(2) (n = 1-5) and PPh(2)C[triple bond, length as m-dash]C(C(6)H(4))C[triple bond, length as m-dash]CPPh(2)] with [AuX(tht)] (X = Cl, C(6)F(5)) in a 1 : 2 molar ratio affords dinuclear luminescent complexes of formula [(AuX)(2)(P∼P)]. 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').
authors: Universidad de Zaragoza-CSIC, Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Spain.
authors: Jéssica
authors: J
authors: Cámara
authors: Olga
authors: O
authors: Crespo
authors: M Concepción
authors: MC
authors: Gimeno
authors: Igor O
authors: IO
authors: Koshevoy
authors: Antonio
authors: A
authors: Laguna
authors: Isaura
authors: I
authors: Ospino
authors: Ekaterina S
authors: ES
authors: Smirnova
authors: Sergey P
authors: SP
authors: Tunik
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D050607:Organogold Compounds / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000737:chemistry*
chemical_list: D000480:Alkynes; D050607:Organogold Compounds; D009943:Organophosphorus Compounds