Electronic absorption spectra of flavonoids

Autor:	Yu. M. Sapozhnikov, Yu. L. Frolov, S. S. Barer, L. V. Sherstyannikova
Rok vydání:	1974
Předmět:	chemistry.chemical_classification chemistry.chemical_compound Absorption spectroscopy chemistry Double bond Atomic orbital Excited state Substituent Molecule Molecular orbital General Chemistry Absorption (chemistry) Photochemistry
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 23:1218-1221
ISSN:	1573-9171 0568-5230
DOI:	10.1007/bf00923082
Popis:	1. Calculations were made of the UV spectra of flavone and its OR derivatives. An assignment of the absorption bands of flavonoids was made. 2. For the first three electronically excited states, the configurational interaction (CI) encompasses only the occupied 1, 2, 3, and vacant 1*, 2*, 4* orbitals. The molecular orbital 6, with predominant localization of charge on the substituent, does not participate in the CI of the first three excited states. 3. Excitation of the investigated molecules is accompanied by a transfer of charge from the oxygen atom, double bond, and carbonyl group to the benzene rings.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5ca9a2c58eb43187e192e01c85533c4f https://doi.org/10.1007/bf00923082 Zobrazit plný text záznamu Full text from SpringerLink