Photoinitiated azo-hydrazo tautomerizm of 1-p- toluenesulphonylazo-2,4,6,8-tetrakis (tert-butyl)phenoxazine

Autor: T. E. Ivakhnenko, N. I. Makarova, E. P. Ivakhnenko, V. I. Minkin, M. I. Knyazhansky
Jazyk: angličtina
Rok vydání: 1999
Předmět:
Zdroj: International Journal of Photoenergy, Vol 1, Iss 3, Pp 161-164 (1999)
Druh dokumentu: article
ISSN: 1110-662X
1110662X
68827385
DOI: 10.1155/S1110662X99000288
Popis: A novel photochromic compound with NH-N intramolecular H-bond (1-p-toluenesulphonylazo- 2,4,6,8-tetrakis(tert-butyl)phenoxazine) and the corresponding model structures (1-oxo-2,4,6,8-tetrakis(tertbutyl) phenoxazine, 2,4,5,7-tetrakis (tert-butyl )-1-( veratroylazo ) phenoxazine, 2,4,5,7-tetrakis ( tert-butyl )-Nacetyl- 1-(p-toluenesulphonylazo)phenoxazine) have been synthesized and their spectral and photochemical properties are studied. The photochromic transformations observed are found to be conditioned by ESIPT (as a primary step) followed by E-Z isomerisation about N–N-bond.
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