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Sensitization of Nanocrystalline TiO2 Films with Carboxy-Functionalized Bis(indolyl)maleimide

Kükrer Kaletas, B. ; Kozhevnikov, V. N. ; Zimine, M. ; Williams, R. M. ; König, B. ; De Cola, L.


The immobilization on a semiconductor surface of a bis(indolyl)maleimide functionalized with two carboxylic acid groups by alkylation of the indole nitrogen atoms is presented and its synthesis is described. The compound, 3,4-bis[1-(carboxymethyl)-3-indolyl]-1H-pyrrole-2,5-dione is strongly colored and emissive and the imide part can coordinate an oxidizable substrate. Its absorption and emission ...


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