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Complex formation of 15-crown-5 ether containing monoand bis(styryl)bipyridine with transition metal perchlorates was studied. The complex stoichiometry, complex structure and stability constants were determined by electronic spectroscopy. The influence of metal ions on occurrence of E,Z-isomerization was analyzed; the optical characteristics of two isomers were calculated from the photolysis data.

Complex formation and photochemical properties of the crown-containing mono- and bis(styryl)bipyridine derivatives with transition metal cations