화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.297, 227-231, 1997
The Structure and Photochromism of 3-Phenyl-5,5-Dimethylspiro(1,3-Oxazalidin-2-Thione)-4,2’-(2H)Chromenes
A series of novel spiropyrans, derivatives of 3-phenyl-5,5-dimethylspiro (1,3-oxazalidin-2-thione)-4,2’-[2H] chromene and its 2-oxo analogue have been synthesized and their photochromic properties studied. Molecular and crystal structures of four spiropyrans have been determined by X-ray crystal analysis.