Original scientific paper

Electronic Spectra of Cyano-5-phenyltetrazoles

I. Janić ; Institute of Physics, Faculty of Science, University of Novi Sad, Novi Sad, Yugoslavia
M. Kakaš ; Institute of Physics, Faculty of Science, University of Novi Sad, Novi Sad, Yugoslavia
P. Baluk ; Luminescence Research Group, Institute of Experimental Physics, University of Gdansk, Gdansk, Poland
A. Kubicki ; Luminescence Research Group, Institute of Experimental Physics, University of Gdansk, Gdansk, Poland
A. Kawski ; Luminescence Research Group, Institute of Experimental Physics, University of Gdansk, Gdansk, Poland

Abstract

Absorption and luminescence spectra of ortho-, meta- and para-
cyano-5-phenyltetrazole in aqueous solutions at room and low
temperature were measured. Investigations wene carried out in
super acidic (H; = -8) to basic (pR = 12)media. Three dissociation
forms were identified (anion, molecule and cation), and the corresponding acid-base equilibrium constants in the ground state,
speetrophotometrically, and in the first excited singlet state from
the titration curves and by Forster cycle were determined.

Keywords

Hrčak ID:

176004

URI

https://hrcak.srce.hr/176004

Publication date:

30.12.1988.

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