Citation
Sh. Choi et al., Reversible photochromic behaviors of fatty acids with azobenzene chromophore in thin film assemblies, MOL CRYST A, 337, 1999, pp. 69-72
Citations number
3
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
ISSN journal
1058725X
→ ACNP
Volume
337
Year of publication
1999
Pages
69 - 72
Database
ISI
SICI code
1058-725X(1999)337:<69:RPBOFA>2.0.ZU;2-5
Abstract
The mechanism of reversible photoinduced anisotropy of an azobenzene deriva
tive was investigated by measuring optical retardation and UV/Vis dichroism
. During the relaxation period, the cis-trans thermal back relaxation and o
rientational relaxation of azobenzene groups occur. It is believed that the
orientational relaxation of trans and cis azobenzene groups to relieve the
strains is a more dominant contribution to the decrease of the optical ani
sotropy in the film.