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ANALYSIS OF SOLVATOCHROMISM IN BINARY MIXTURE OF SOLVENTS

Hiroko Yoshida, Mitsuhiko Hida

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Abstract

The solvatochromism of the dyes, 4-nitroanilines (A and B), the azonia betain dye (C) was observed in nonpolar, polar aprotic and protic solvents. The solvents used were hexane, benzene, acetone, acetonitrile, ethanol and methanol. The shifts of the maximum wave numbers of these dyes by composition of binary mixture of solvents were analysed by assuming the selective solvation model. The results obtained indicate that the solvation of dyes is almost explained by the selective solvation model. The selectivities of solvents in solvation were analysed and discussed.

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The solvatochromism of the dyes, 4-nitroanilines (A and B), the azonia betain dye (C) was observed in nonpolar, polar aprotic and protic solvents. The solvents used were hexane, benzene, acetone, acetonitrile, ethanol and methanol. The shifts of the maximum wave numbers of these dyes by composition of binary mixture of solvents were analysed by assuming the selective solvation model. The results obtained indicate that the solvation of dyes is almost explained by the selective solvation model. The selectivities of solvents in solvation were analysed and discussed.

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Available abstract

The solvatochromism of the dyes, 4-nitroanilines (A and B), the azonia betain dye (C) was observed in nonpolar, polar aprotic and protic solvents. The solvents used were hexane, benzene, acetone, acetonitrile, ethanol and methanol. The shifts of the maximum wave numbers of these dyes by composition of binary mixture of solvents were analysed by assuming the selective solvation model. The results obtained indicate that the solvation of dyes is almost explained by the selective solvation model. The selectivities of solvents in solvation were analysed and discussed.

Key concepts: Solvatochromism, Solvation, Acetonitrile, Acetone, Chemistry, Methanol, Benzene, Hexane

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