4,4'-BINAPHTHYLIDENE-1,1'-DIONES - COLOR AND STRUCTURE

Authors
Citation
A. Kral et H. Laatsch, 4,4'-BINAPHTHYLIDENE-1,1'-DIONES - COLOR AND STRUCTURE, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 48(10), 1993, pp. 1401-1407
Citations number
18
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
ISSN journal
09320776
Volume
48
Issue
10
Year of publication
1993
Pages
1401 - 1407
Database
ISI
SICI code
0932-0776(1993)48:10<1401:4-CAS>2.0.ZU;2-Q
Abstract
Synthesis and properties of various 4,4'-binaphthylidene-1,1'-diones a re described. The UV spectra of the deep red to purple diones may be c alculated on the base of substituent increments. The experimental valu es of the analyzed substituents can be reproduced using PPP calculatio ns with satisfying accuracy, which makes it possible to predict also a bsorption maxima of hitherto unknown 4,4'-binaphthylidene-1,1'-diones.