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Some New Fused Heterocyclic Cyanine Dyes with Ring Junction Heteroatom

R. M. Abu El-Hamd

Department of Chemistry, Aswan Faculty of Science, Aswan, Egypt

 

Abstract: New asymmetrical pyrazolio[4',5':4,5]imidazo[3,2-a]/pyrrolo[1,2-a]pyridinium/quinolinium bromide iodide 1[4(1)]-monomethine cyanines: 1[2(4)]-trimethine cyanines and/or 1-styryl cyanines were synthesized to study their spectral behaviour, solvatochromism, mixed solvents, and acid-base properties.These dyes are characterized by elemental analysis, IR, 1H  NMR, and electronic absorption spectra.

Full paper in Portable Document Format: 512a117.pdf

 

Chemical Papers 51 (2) 117–127 (1997)

Tuesday, July 23, 2019

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