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

页码：43 / 48

页数：6

共 50 条

[11]

D'Andrade BW, 2002, ADV MATER, V14, P1032, DOI 10.1002/1521-4095(20020805)14:15<1032::AID-ADMA1032>3.0.CO

[12]

2-6

[13] Photocatalytic generation of hydrogen from water using a platinum(II) terpyridyl acetylide chromophore [J].