| Numéro |
J. Phys. Colloques
Volume 48, Numéro C9, Décembre 1987
X-Ray and Inner-Shell ProcessesVol. 1 |
|
|---|---|---|
| Page(s) | C9-737 - C9-740 | |
| DOI | https://doi.org/10.1051/jphyscol:19879126 | |
X-Ray and Inner-Shell Processes
Vol. 1
J. Phys. Colloques 48 (1987) C9-737-C9-740
DOI: 10.1051/jphyscol:19879126
Research Institute of Organic Intermediates and Dyes, Moscow, USSR
Vol. 1
J. Phys. Colloques 48 (1987) C9-737-C9-740
DOI: 10.1051/jphyscol:19879126
STUDY OF TAUTOMERISM IN A SERIES OF MONOAZOPIGMENTS BASED ON 1-PHENYLAZO-2-OXY-3-PHENYLCARBAMOYLNAPHTHALENE
T.M. IVANOVA, E.D. SYCHEVA, B.E. ZAITSEV, E.S. LISITSINA, E.I. POLYAKOVA and K.M. DYUMAEVResearch Institute of Organic Intermediates and Dyes, Moscow, USSR
Abstract
Tautomerism in a series of monoazopigments based on 1-phenylazo-2-oxy-3-phenylcarbamoylnaphthalene was studied by X-ray photoelectron spectroscopy. The ratio of integral intensities of 01s photoelectron peaks from oxygen atoms occurring in different states in the molecule showed the presence of two tautomeric forms, namely, azo and. quinonehydrazone isomers, and allowed the calculation of their relative contents. Contributions from the two tautomeric forms were directly affected by the nature of substituents.