Heteropolynuclear Complexes of 3,5-Dimethylpyrazolate [Pt2M4(Me2pz)8] (M = Ag, Cu). Highly Luminescent Character of the Triplet Excited State Based on Mixed-Metal Cores

Autor: Masayoshi Onishi, Noboru Kitamura, Shigeyoshi Sakaki, Keizo Saito, Shoji Ishizaka, Takashi Kojima, Seiji Akatsu, Keisuke Umakoshi, Yoshiki Ozawa, Yoshihide Nakao
Rok vydání: 2008
Předmět:
Zdroj: Inorganic Chemistry. 47:5033-5035
ISSN: 1520-510X
0020-1669
DOI: 10.1021/ic702310t
Popis: The platinum dimer and heteropolynuclear platinum complexes of 3,5-dimethylpyrazolate, [Pt2M4(mu-Me2pz)8] [M = H (1), Ag (2), Cu (3)], were synthesized and structurally characterized. They exhibit yellow, sky-blue, and orange luminescence, respectively, in the solid state. The absorption bands of 2 and 3 are mainly assigned to the combination of the metal-metal-to-ligand charge-transfer and [Pt2 --Pt2M4] transitions by the time-dependent density functional theory (DFT) method. DFT calculations also indicate that the emissive states of 2 and 3 are 3[Pt2 --Pt2Ag4] and 3[Cu(d) --Pt2Cu4], respectively.
Databáze: OpenAIRE