AGGREGATION AND TAUTOMERIC PROPERTIES OF CI-ACID-RED-138

Authors
IIJIMA T JOJIMA E ANTONOV L STOYANOV S STOYANOVA T
Citation
T. Iijima et al., AGGREGATION AND TAUTOMERIC PROPERTIES OF CI-ACID-RED-138, Dyes and pigments, 37(1), 1998, pp. 81-92
Citations number
12
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Materiales Science, Textiles
Journal title
Dyes and pigments → ACNP
ISSN journal
01437208
Volume
37
Issue
1
Year of publication
1998
Pages
81 - 92
Database
ISI
SICI code
0143-7208(1998)37:1<81:AATPOC>2.0.ZU;2-3
Abstract
The spectral properties of CI Acid Red 138 and related dyes in respect of their azo(A)-hydrazone(H) tautomeric behavior were investigated. T he observed influence of temperature and concentration was taken into account in the described theoretical model. The absorption spectra of the H-form and its corresponding H-dimer were calculated along with th e structural parameters-the distance R between the molecules in the di mer (similar to 5.3 Angstrom) and the angle alpha between the transiti on dipole moments (similar to 56 degrees). (C) 1998 Elsevier Science L td.