Benzodipyrrolenine-based biscyanine dyes: Synthesis, molecular structure and spectroscopic characterization

…, IA Fedyunyayeva, SU Khabuseva, OM Semenova…

Index: Klochko, Oleksiy P.; Fedyunyayeva, Iryna A.; Khabuseva, Sania U.; Semenova, Olga M.; Terpetschnig, Ewald A.; Patsenker, Leonid D. Dyes and Pigments, 2010 , vol. 85, # 1-2 p. 7 - 15

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Citation Number: 8

Abstract

A novel method of synthesizing long-wavelength absorbing and emitting bis-trimethine dyes that consists of condensing benzodipyrrolenine dialdehyde with quaternized heterocyclic CH-acidic compounds was used to prepare a series of biscyanines. The new method is more convenient than its conventional counterepart, which relies upon condensation of a quaternized benzodipyrrolenine with Fisher's aldehyde, for the synthesis of a ...