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International Journal of Spectroscopy
Table of Contents
Special Issues
International Journal of Spectroscopy
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2014
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Article
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Tab 1
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Research Article
Spectral Properties of Dyes with Interfragmental Charge Transfer: Solvatochromism and Solvatofluorochromism of 2-(3-Coumaroyl)-benzopyrylium Perchlorates
Table 1
Conditions for the synthesis of CBP derivatives.
Refluxing duration, min
Solvent for the initiation of precipitation
Solvents used for recrystallisation
Yield, %
I
10–15
—
Ethanol
77
II
20
—
Ethanol
73
III
20
—
Ethanol
72
IV
30
—
Concentrated acetic acid
66
V
20
—
Isopropanol
70
VI
20
Isopropanol
Isopropanol-acetonitrile (4 : 1 v/v)
64
VII
20
Isopropanol
Acetonitrile
57