Crystal structure, mesomorphic and emission properties of liquid crystals having a 7-(diethylamino)-3-phenylcoumarin core.
Cholesteryl 4-(7-diethylamino-2-oxo-2H-1-benzopyran-3-yl)benzoate (1) had an enantiotropic cholesteric phase. The crystal structure of 1 has been determined by X-ray crystallographic analysis. The crystals of 1 had intermolecular CH...pi and CH...O interactions. 7-(Diethylamino)-3-phenylcoumarin derivatives (1) gave a strong emission band at 500 nm in the solid state when excited at 440 nm.
Takechi
Haruko
H
Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Hokkaido, Japan.
Kubo
Kanji
K
Takahashi
Hajime
H
Matsumoto
Taisuke
T
D003374:Coumarins / Q000737:chemistry*; D018360:Crystallography, X-Ray; D050866:Liquid Crystals / Q000737:chemistry*; D015394:Molecular Structure; D044367:Phase Transition; D013050:Spectrometry, Fluorescence
D003374:Coumarins