Abstract
The special features of the photoinduced transformations of 1,5-diaryl-3,5a-dihydro-1H-azireno[1,2-c]imidazole in liquid crystalline matrices were studied. During irradiation, changes in absorption bands at 630 and 430 nm were observed, which, in the cholesteric phase, were accompanied by a selective reflection band shift to sorter waves. The data obtained were in conformity with the concept of a two-stage character of phototransformations. The special features of the process in the liquid crystalline phase compared with crystals, polymeric dispersions, and solutions were considered.
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