Symmetric, twinned, and double-decker phthalocyanines substituted by trialkylated pentaerythritol

Authors : Muzaffer Köç, Ayşe Gül Gürek, Fabienne Dumoulin, Vefa Ahsen

Pages : 493-502

Doi:10.3906/tar-1206-8

View : 17 | Download : 8

Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :Trialkylated pentaerythritol was chosen as a bulky substituent for a set of 3 free-base phthalocyanines: a symmetric, a twinned, and a double-decker derivative. The bulkiness of this substituent lowered the aggregation of the phthalocyanines. The electronic absorptions were comparatively investigated: the twinned phthalocyanine exhibited a significant near-infrared shifted absorption. The neutral radical Eu(III) complex was oxidized by bromine. These 3 phthalocyanines are promising for use as molecular materials.
Keywords : Phthalocyanine, twinned, alkylated pentaerythritol, europium, double-decker, electronic near-infrared delocalization