Croatica Chemica Acta, Vol. 63 No. 2, 1990.
Original scientific paper
Steric Effects in the UV-Visible Spectra of Benzylideneanilines. Part V. Substituent Effect in the Spectra of 1-(4’-Dimethylami- nobenzylideneamino)pyridinium Perchlorates
R. Gawinecki
; Department of Chemistry, pedagogical University, 25-020 Kielce, Poland
Abstract
The electronacceptor substituents in the pyridine ring of l-(4’- -dimenthylaminobenzylideneamino)pyridinium perchlorates cause a red shift of the longest-wavelength UV-Visible absorption band.
The electrondonor substituents act in the opposite direction. For
the compounds studied a linear relationship between v max, as well as log %ax, of that band and Hammett <5 constants was found.
Keywords
Hrčak ID:
137400
URI
Publication date:
10.8.1990.
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