Synthesis and photophysical properties of butterfly-shaped dinuclear Pt(II) complex having NHC-based chelate ligands

被引：13
作者：
Moon, Sangjoon [1 ]
Horiuchi, Shinnosuke [1 ]
Sakuda, Eri [1 ]
Ito, Akitaka [2 ]
Arikawa, Yasuhiro [1 ]
Umakoshi, Keisuke [1 ]
机构：
[1] Nagasaki Univ, Grad Sch Engn, Div Chem & Mat Sci, Bunkyo Machi, Nagasaki 8528521, Japan
[2] Kochi Univ Technol, Grad Sch Engn, 185 Miyanokuchi, Kochi 7821502, Japan
来源：
INORGANICA CHIMICA ACTA | 2019年 / 493卷
关键词：
Pyridyl-NHC ligand; Dinuclear complex; Platinum; PHOSPHORESCENT MOLECULAR BUTTERFLIES; AGGREGATION-INDUCED EMISSION; WHITE-LIGHT EMISSION; PLATINUM(II) COMPLEXES; HETEROPOLYNUCLEAR COMPLEXES; QUANTUM YIELDS; EFFICIENT; LUMINESCENCE; HYDROGEN; AG;
D O I：
10.1016/j.ica.2019.04.045
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A butterfly-shaped dinuclear Pt(II) complex having pyridyl-NHC chelate ligands and bridging Me(2)pz ligands was synthesized. The crystal structure of the Pt-2 complex showed short intramolecular Pt center dot center dot center dot Pt distance (3.129 angstrom) and unique packing structure containing one-dimensional infinite pore that was filled with solvent molecules. The absorbance was proportional to the concentration of Pt-2 complex and no significant bands appeared even in high concentration (up to 100 mu M). The Pt-2 complex showed bluish-green emission (lambda(max) = 459 nm) in the solid state at 298 K (lambda(ex) = 330 nm). TD-DFT calculation revealed that the lowest-energy absorption bands are mainly assigned to the combination of metal-to-ligand charge transfer (MLCT) and ligand-to-ligand charge transfer (LLCT) transitions.
引用
收藏
页码：43 / 48
页数：6
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