Formation of a biradical species from a monoradical with a photo- and thermo isomerizable imine group

Authors
Ruiz-Molina, D Ratera, I Vidal-Gancedo, J Daro, N Letard, JF Rovira, C Veciana, J
Citation
D. Ruiz-molina et al., Formation of a biradical species from a monoradical with a photo- and thermo isomerizable imine group, SYNTH METAL, 121(1-3), 2001, pp. 1804-1805
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
121
Issue
1-3
Year of publication
2001
Pages
1804 - 1805
Database
ISI
SICI code
0379-6779(20010315)121:1-3<1804:FOABSF>2.0.ZU;2-T
Abstract
The thermally induced trans-1/cis-1 isomerization process is studied here. The trans-1 --> cis-1 isomerization takes place in three solvents with diff erent polarities whereas cis-l did not evidence the presence of a backward cis-1 --> trans-1 isomerization, independently of the polarity of the solve nt used. This fact revealed that the cis-l isomer is thermodynamically more stable probably due to the formation of a hydrogen bonded biradical specie s, as confirmed by ZINDO/I semiempirical calculations.