Exploring the Electronic Properties of Extended Benzofuran-Cyanovinyl Derivatives Obtained from Lignocellulosic and Carbohydrate Platforms Raw Materials.

Autor: Ibrahim N; Univ Angers, CNRS UMR 6200, MOLTECH-ANJOU,SFRMATRIX, 2 boulevard Lavoisier, 49000, Angers, France., Moussallem C; Université Libanaise, Faculté des Sciences, Laboratoire de Chimie, Campus Michael Slayman, Maska, 1352, Lebanon., Allain M; Univ Angers, CNRS UMR 6200, MOLTECH-ANJOU,SFRMATRIX, 2 boulevard Lavoisier, 49000, Angers, France., Segut O; Univ Angers, CNRS UMR 6200, MOLTECH-ANJOU,SFRMATRIX, 2 boulevard Lavoisier, 49000, Angers, France., Gohier F; Univ Angers, CNRS UMR 6200, MOLTECH-ANJOU,SFRMATRIX, 2 boulevard Lavoisier, 49000, Angers, France., Frère P; Univ Angers, CNRS UMR 6200, MOLTECH-ANJOU,SFRMATRIX, 2 boulevard Lavoisier, 49000, Angers, France.
Jazyk: angličtina
Zdroj: ChemPlusChem [Chempluschem] 2021 Mar 01; Vol. 86 (3), pp. 475-482. Date of Electronic Publication: 2021 Mar 01.
DOI: 10.1002/cplu.202100062
Abstrakt: Two series of linear extended benzofuran derivatives associating cyanovinyl unit and phenyl or furan moieties obtained from benzaldehyde-lignocellulosic (Be series) or furaldehyde -saccharide (Fu series) platforms were prepared in order to investigate their emission and electrochemical properties. For the fluorescence in solution and solid states, contrasting results between the two series were demonstrated. For Be series a net aggregation induced emission effect was observed with high fluorescence quantum yield for the solid state. A [2+2] cycloaddition under irradiation at 350 nm was also revealed for one derivative of Be series. In contrast, for Fu series the fluorescence in solution is higher than in the solid state. The X-ray crystallography studies for the compounds reveal the formation of strong π-π stacking for the derivatives without emissive property in the solid state and the presence of essentially lateral contacts for emissive compounds. Taking advantage of the propensity to develop 2D π-stacking mode for the more extended derivative with a central furan cycle, organic field effect transistors presenting hole mobility have been made.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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