SYNTHESIS, CHARACTERIZATION AND PHOTOGRAPHIC PROPERTIES OF SOME NEW STYRYL CYANINE DYES

Two series of 3-sulfopropyl styryl cyanine dyes were synthesized by co ndensation of (un)substituted benzothiazole betaine with a view to stu dying their spectral characterization and silver halide photosensitiza tion properties. The structures of the dyes evaluated by elemental ana lysis, H-1 NMR, IR and MS. An attempt was made to correlate colorant s tructure with photophysical properties and applied performance in phot ographic silver halide emulsion. (C) 1998 Elsevier Science Ltd All rig hts reserved.