1,3-Bisarylbutadienes: Novel Thermally Irreversible Photochromic System

Novel thermally irreversible photochromic compounds 1O , 2O and 3O based on 1,3-bisarylbutadiene system were synthesized. The closed ring-forms 1C and 2C showed absorption maximum at 445 nm, while the closed ring-form 3C , a methyl group of 2C on C-5 of thienyl ring was replaced with a formyl group,...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Pa. : 2003), 2005-06, Vol.431 (1), p.433-439
Main Authors: Yokoyama, Yasushi, Shrestha, Sujen Man, Yokoyama, Yayoi
Format: Article
Language:English
Subjects:
bathochromic shift
bisarylbutadiene
fatigue resistivity
photochromism
thermal irreversibility
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Summary:Novel thermally irreversible photochromic compounds 1O , 2O and 3O based on 1,3-bisarylbutadiene system were synthesized. The closed ring-forms 1C and 2C showed absorption maximum at 445 nm, while the closed ring-form 3C , a methyl group of 2C on C-5 of thienyl ring was replaced with a formyl group, showed the absorption maximum at 500 nm.
ISSN:1542-1406
1563-5287
DOI:10.1080/15421400590947018