SPECTROSCOPIC PROPERTIES OF PT(II) AND PD(II) COMPLEXES WITH AROMATIC TERDENDATE (C-N-C) CYCLOMETALLATING LIGANDS

被引：74

作者：

MAESTRI, M ^{[1
]}

DEUSCHELCORNIOLEY, C ^{[1
]}

VONZELEWSKY, A ^{[1
]}

机构：

[1] UNIV FRIBOURG,INST INORGAN CHEM,CH-1700 FRIBOURG,SWITZERLAND

来源：

COORDINATION CHEMISTRY REVIEWS | 1991年 / 111卷

关键词：

D O I：

10.1016/0010-8545(91)84016-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Emission spectra, emission lifetime and electrochemical behavior of the complexes Pt(H-dppy)2, Pt(dppy)S(Et)2, Pt(dppy)py, Pt(dppy)pyr, (dppy)Pt-pyr-Pt(dppy), and Pd(dppy)py (where dppy2- is the C- deprotonated form of 2,6-diphenylpyridine and py and pyr are pyridine and pyrazine) have been studied. The structured luminescence spectra observed at 77 K have been assigned to transitions having i) MLCT character in the case of Pt(H-dppy)2, ii) mainly MLCT character with some LC contribution for the four tridentate trans Pt(II) complexes and iii) almost pure LC character for the Pd(II) complex. The luminescence emission involves in all cases the dppy ligand even though the electrochemical results suggest a LUMO orbital centred on the pyrazine ligand in the Pt(dppy)pyr complex and on the metal in the Pd(dppy)py complex.

引用

页码：117 / 123

页数：7

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