Liquid Based Circularly Polarized Phosphorescence of a Chiral Schiff Base Platinum(II) Complex Bearing Polyethylene Glycol Chains

被引：12
|
作者：
Ikeshita, Masahiro [1 ]
Orioku, Kota [1 ]
Matsudaira, Kana [2 ]
Kitahara, Maho [2 ]
Imai, Yoshitane [2 ]
Tsuno, Takashi [1 ]
机构：
[1] Nihon Univ, Coll Ind Technol, Dept Appl Mol Chem, Narashino, Chiba 2758575, Japan
[2] Kindai Univ, Fac Sci & Engn, Dept Appl Chem, 3-4-1 Kowakae, Higashi Osaka, Osaka 5778502, Japan
来源：
CHEMPHOTOCHEM | 2023年 / 7卷 / 06期
关键词：
circularly polarized luminescence; liquids; phosphorescence; platinum; chirality; IONIC LIQUID; LUMINESCENCE; LIGHT; ELECTROLUMINESCENCE; METAL;
D O I：
10.1002/cptc.202300010
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A chiral Schiff base platinum(II) complex 1 bearing polyethylene glycol (PEG) chains was synthesized. The complex was found to melt at 44 degrees C whereas its non-substituted analogue 2 has a high melting point (>300 degrees C). Upon cooling after melting, the complex remained liquid at room temperature over 30 minutes and exhibited yellow phosphorescence. Circularly polarized phosphorescence (CPP) properties were examined and it was found that the absolute value of the luminescence dissymmetry factor (g(lum)) increases significantly in the liquid state compared to the dilute solution state. Herein, we report the first example of CPP from solvent-free supercooled liquids.
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页数：6
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