UV/Vis, IR and 1H NMR spectroscopic studies of bisazo-dianil compounds based on pyrimidenyl azo hydroxybenzaldehydederivatives and primary aliphatic diamines

摘要: A series of newely prepared bisazo-dianil compounds based on pyrimidenyl azo hydroxybenzaldehyde derivatives and primary aliphatic diamineswere synthesized. Their electronic absorption spectra were recorded in organic solvents varying polarity buffer solutions different pH. The bands assigned to the corresponding transitions characteristic molecules, effect solvent pH themediumon band maximawere discussed. change with was utilized calculate acid dissociation constants compounds.Also important IR signals 1H NMR studied, as well their fluorescence are considered. Also pathological studies this Pitrysporum ovale orbiculare isolated from cases tinea versicolor studied.