PI-PI-ASTERISK MOLECULAR CHARGE-TRANSFER COMPLEXES OF ANTIPYRINE SCHIFF-BASES WITH 1,4-BENZOQUINONE DERIVATIVES AS PI-ACCEPTORS

Authors
ELMOSSALAMY EH ELBARADIE KY
Citation
Eh. Elmossalamy et Ky. Elbaradie, PI-PI-ASTERISK MOLECULAR CHARGE-TRANSFER COMPLEXES OF ANTIPYRINE SCHIFF-BASES WITH 1,4-BENZOQUINONE DERIVATIVES AS PI-ACCEPTORS, Monatshefte fuer Chemie, 128(3), 1997, pp. 255-260
Citations number
17
Categorie Soggetti
Chemistry
Journal title
Monatshefte fuer Chemie → ACNP
ISSN journal
00269247
Volume
128
Issue
3
Year of publication
1997
Pages
255 - 260
Database
ISI
SICI code
0026-9247(1997)128:3<255:PMCCOA>2.0.ZU;2-W
Abstract
Spectrophotometric studies of compounds formed by several substituted antipyrine Schiff bases as electron donors with 2,3-dichloro-5,6-dicya no-benzoquinone, chloranilic acid, and chloranil as electron accepters have given results that are consistent with 1:1 charge transfer compl exes. Transition energies, oscillator strengths, and dipole moments of the complexes as well as the effect of solvent upon their stability a re discussed. Also their free energies and absorption cross sections h ave been determined.