Collect. Czech. Chem. Commun. 1982, 47, 2594-2603
https://doi.org/10.1135/cccc19822594

Electronic absorption, fluorescence and polarisation spectra of β,β'-diamino-9,10-anthraquinones and their interpretation by the method of configuration analysis

Miloš Nepraša, Miloš Titza, Bohuslav Gaša and Jürgen Fabianb

a Research Institute of Organic Syntheses, 532 18 Pardubice-Rybitví, Czechoslovakia
b Department of Chemistry, Technical University of Dresden, Dresden, G.D.R.

Abstract

On the basis of measurement of absorption frequency-dependent polarisation spectra of fluorescence (APF) and dichroism on oriented polyvinyl alcohol sheets, interpretation has been carried out of electronic absorption spectra of β,β'-diamino-9,10-anthraquinones in the wavelength range 250 to 600 nm. Character of the excited ππ* states has been determined by the method of configuration analysis (PPP-CA).