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Article Dans Une Revue Chemistry - A European Journal Année : 2016

Columnar Liquid-Crystalline Dibenzopentacenodithiophenes by Photocyclization

Résumé

The twofold glyoxylic Perkin reaction of perylene-3,9-diglyoxylic acid with thiophene-diacetic acid followed by oxidative photocylization and reaction with abranched primary alkylamines yields columnar liquid-crystalline diimides with two sulfur atoms in the condensed arene system. A broad temperature range of the hexagonal columnar mesophase is induced by racemic doubly branched alkyl chains. The HOMO and LUMO energy levels of these thiophene-derived diimides qualify them as electron donors with respect to perylene diimides.

Dates et versions

hal-01386718 , version 1 (24-10-2016)

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Citer

Marilia G. Belarmino Cabral, Deise M. Pereira de Oliveira Santos, Ahmed Bentaleb, Elisabeth A. Hillard, Rodrigo Cristiano, et al.. Columnar Liquid-Crystalline Dibenzopentacenodithiophenes by Photocyclization. Chemistry - A European Journal, 2016, 22, pp. 8043-8047. ⟨10.1002/chem.201600773⟩. ⟨hal-01386718⟩

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