Spectroscopic studies of the autocomplex type compounds 1. Use of spectrophotometry derivatives for interpretation of electronic spectra of autocomplexes of the picramide series

The complicated electronic absorption spectra of several picramide autocomplexes were interpreted by the second derivative spectrophotometric method. A linear correlation was established between the values of the intramolecular charge-transfer energy and the ionization potential of a donor fragment of molecules. The ionization potentials of several compounds were determined.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1188–1191, May, 1996.