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Updated: Aug 16, 2025

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
Published on: January 3, 2018
External environment sensitive circularly polarized luminescence properties of a chiral boron difluoride complex
Masahiro Ikeshita1, Hongxi He1, Maho Kitahara2
1Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University Narashino Chiba 275-8575 Japan ikeshita.masahiro@nihon-u.ac.jp tsuno.takashi@nihon-u.ac.jp.
Abstract:
A chiral Schiff-base boron difluoride complex bearing a diethylamino group was synthesized. Its photophysical properties were investigated and compared with those of its non-substituted analogue. The complex was found to exhibit solvatofluorochromism with bluish-white emission in moderately polar solvents and intense blue emission in nonpolar solvent. Circularly polarized luminescence (CPL) properties were also examined and it was found that the absolute value of the luminescence dissymmetry factor (g lum) increases significantly in the KBr-dispersed pellet state compared to the solution state. Notably, CPL intensity of the complex enhanced approximately three times upon addition of CH3SO3H in CH2Cl2. Density functional theory (DFT) calculations were conducted to further understand the photophysical properties.
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