SPECTRAL PROPERTIES OF DYES ARE ON BASIS OF HEXAHYDROBICYCLOPENTA[b, e]PYRIDINES

Abstract

Derivatives of dicyclopentanopyridines are compounds of condensed structure with a cross-conjugated system of multiple connections, where the pyridine core is a acceptor of electron density. Their electronic structure indicates that they can significantly change the parameters of fluorescence depending on the nature of the environment (1). The passage to the excited state should lead to a substantial redistribution of electron density in the molecule increasing its polarity. Given the high mechanical stiffness of the molecules of these derivatives, they should expect a high enough quantum yield of fluorescence in solutions. Meanwhile, by this time spectral and physico-chemical researches in a number dicyclopentano [b, e] pyridines have not been carried out.