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Conformations Privilégiées de Dérivés des Bithiophenes: Étude par Spectroscopie d'Absorption Électronique

✍ Scribed by P. Meunier; M. Coustale; J. Arriau


Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
484 KB
Volume
87
Category
Article
ISSN
0037-9646

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✦ Synopsis


indicates that nm planar u n f m t i c m are p -t in vapour phase and ncn polar solutions. m e existence of steric StraFn within dibraIcbithiCphens induces an increase of the twist angle. An evaluatim of this angle is carried out for eacfi carpound.

An experimental and theoretical sb3y of the W absorptim spectra of bithi-Ies spedres d'abmrptim 6 1 -des bithi@hes-2,2' et 3.3' c n t &ja 6t6 enlegistds en solutim dam le cyclohexane (1,2,3), l'hewne ( 4 ) , ou 1'6thanol (5,6). Ihe premiere analyse thhrique des spectres a 6gal-t 6M effect*


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