%0 Journal Article
%T Synthesis and Characterization of Heptamethine Cyanine Dyes
%A Qun Li
%A Ji Tan
%A Bi-Xian Peng
%J Molecules
%D 1997
%I MDPI AG
%R 10.3390/20600091
%X A series of meso-chlorine substituted heptamethine-cyanine dyes and related heptamethine cyanine dyes unsubstituted on the vinyl chain were synthesized by condensation of 2,3,3-trimethyl indolenium salts with reactive intermediates, 2-chloro-formyl-3-hydroxy-methylenecyclohexene or N-[5-(phenylamino)-2,4-phentadienylidene] aniline monohydro-c hloride. The structures of the dyes were characterized by virtue of 1HNMR, 13C-NMR, IR, MS, etc. The reaction conditions and physicochemical properties of the dyes were extensively explored with classical photo-physical techniques
%K Synthesis
%K cyanine dye
%K infrared dye
%K indotricarbocyanine dye
%U http://www.mdpi.com/1420-3049/2/6/91