Spectres photoélectroniques de divers thiéno[2,3-b] thiophènes

Les spectres photoelectroniques de derives de monosuhstitution du thieno[2,3-b]thiophene (halogene et methyle) out ete analyses. Les attributions proposees sont confirmees par les effets des di, tri et tetrasubstitutions, et en bon accord avec un calcul CNDO/S. Photoelectron spectra of thieno[2,3-b]thiophene and its mono halogeno and mono methyl derivatives have been analysed. The proposed assignments were confirmed by the effects of di, Iri and tetra substitutions and are in good agreement with a CNDO/S calculation.

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