Synthesis and Characterization of New γ-Substituted Pentamethine Cyanine Dyes
作者:A. M. Mehranpour、S. Hashemnia、R. Maghamifar
DOI:10.1080/00397910903457290
日期:2010.11.16
Three novel pentamethine cyaninedyes with 3,5-dimethylpyridinium-1-yl and 4-benzylpyridinium-1-yl substituents in γ position of the methine chain were synthesized via a three-step procedure. The visible spectral behavior of these pentamethine cyaninedyes was examined in DMSO. Elemental analysis, IR, 1H-NMR, 13C-NMR, and Mass spectral data confirmed the molecular structure of the newly synthesized