Synthesis of Chemically Closely Linked N-(1,3-dioxoindan-2-yl)pyridinium Betaine and 1-Amino-4-nitroazobenzene Bichromophore

2011
Jana Kreicberga, Jekaterina Boļšakova, Guna Berzina, Lauma Laipniece, Valdis Kampars

Bichromophore 2-[4-(4-nitrophenylazo)-phenylaminopyridinium-1-yl]-1,3-dioxy-2,3-dihydro-1H-inden-2-ide (1) has been prepared in order to develop strategy that allows simultaneously to increase the first molecular hyperpolarizability and to adjust the dipole moment of chromophores. Three synthetic roots to its precursor - [4-(4-nitrophenylazo)phenyl]octylpyridin-4-ylamine (2) have been examined. UV-vis and 1H NMR spectra of the synthesized bichromophore and of the two chromophores combined in it are given.

Keywords
chromophores, donor-acceptor systems, azocompounds, betaines, substituent effects

Kreicberga, J., Sirotkina, J., Berzina, G., Laipniece, L., Kampars, V. Synthesis of Chemically Closely Linked N-(1,3-dioxoindan-2-yl)pyridinium Betaine and 1-Amino-4-nitroazobenzene Bichromophore. Materials Sciences and Applied Chemistry. Vol.23, 2011, pp.89-93. ISSN 1407-7353.

Publication language
English (en)