PHOTOINDUCED ALIGNMENT OF AZOBENZENE MOIETIES IN THE SIDE-CHAINS OF POLYGLUTAMATE FILMS

Authors
SEKKAT Z BUCHEL M ORENDI H MENZEL H KNOLL W
Citation
Z. Sekkat et al., PHOTOINDUCED ALIGNMENT OF AZOBENZENE MOIETIES IN THE SIDE-CHAINS OF POLYGLUTAMATE FILMS, Chemical physics letters, 220(6), 1994, pp. 497-501
Citations number
21
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
220
Issue
6
Year of publication
1994
Pages
497 - 501
Database
ISI
SICI code
0009-2614(1994)220:6<497:PAOAMI>2.0.ZU;2-4
Abstract
The 'trans-->cis' reversible photoisomerization process tends to align azobenzene derivatives perpendicular to the polarization direction of the pumping beam. It is shown that in the trans-->cis optical transit ion the cis state is aligned perpendicular to the pumping light polari zation. This is shown for spin-coated films of 'hairy-rod' polyglutama te with azobenzene moieties in the side chains. Photoselection in both trans and cis states is demonstrated using the attenuated total refle ction method.