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Several novel aryl substituted 2-halogencinchomeronic dinitriles, possessing an intensive solid state fluorescence, were synthesized. The relationship between the chemical structures and photophysical properties of these compounds was investigated.

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ARTICLE This journal isNon-catalytic conversion of 4-oxoalkane-1,1,2,2-tetracarbonitriles in presence of water leads to the formation of mixture of fluorescent 4-cyano-2-oxo-1,2-dihydropyridine-3-carboxamides and 2-oxo-1,2-dihydropyridine-3,4-dicarbonitriles in equal proportions. This transformation was explained and spectral-luminescent properties were investigated, fluorescence quantum yield was measured.

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