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

Author:

Ikeshita Masahiro1ORCID,Orioku Kota1,Matsudaira Kana2,Kitahara Maho2,Imai Yoshitane2ORCID,Tsuno Takashi1ORCID

Affiliation:

1. Department of Applied Molecular Chemistry College of Industrial Technology Nihon University Narashino Chiba 275-8575 Japan

2. Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan

Abstract

AbstractA chiral Schiff base platinum(II) complex1bearing polyethylene glycol (PEG) chains was synthesized. The complex was found to melt at 44 °C whereas its non‐substituted analogue2has a high melting point (>300 °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 (glum) 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.

Publisher

Wiley

Subject

Organic Chemistry,Physical and Theoretical Chemistry,Analytical Chemistry

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