Solvent effects on the visible spectra of 1-(N-methyl-4-pyridino)-3-(N-methyl-4-pyridylene)-4-alkyl-5-oxocyclopent-1-ene cyanines

Chin. J. Org. Chem. ›› 1990, Vol. 10 ›› Issue (1): 54-58. Previous Articles Next Articles

Original Articles

若干1-(N-甲基-4-吡啶基)-3-(N-甲基-4-吡啶亚基)-4-烷基环戊烯-1-1酮)-5-菁化合物可见吸收光谱的溶剂效应

范伟强;陶伟国

杭州大学化学系

发布日期:1990-02-25

Solvent effects on the visible spectra of 1-(N-methyl-4-pyridino)-3-(N-methyl-4-pyridylene)-4-alkyl-5-oxocyclopent-1-ene cyanines

FAN WEIQIANG;TAO WEIGUO

Published:1990-02-25

Abstract

The visible absorption max. (lmax) of the title compounds (I, Ph) and (II, Me) in 27 organic solvents were measured. Both I and II showed neg. solvatochromism and remarkable sensitivity to the polarity of solvent. A fairly good correlation between lmax and the solvent polarity scale (Z) and ET(30) values was established. The electron transfer energy ET(1) and ET(2), calculated from the lmax value in different solvents, showed good parallel relationship with Z and ET(30). Thus ET(1) and ET(2) could be used as a new solvent polarity scale.

Key words: PYRIDINE P, ULTRAVIOLET SPECTROPHOTOMETRY, SOLVENT EFFECT, LIGHT SENSITIVE MATERIAL, CYCLOPENTENE P, BRIDGE COMPOUNDS, CYANINE DYES

CLC Number:

DA
O645

Cite this article

FAN WEIQIANG;TAO WEIGUO. Solvent effects on the visible spectra of 1-(N-methyl-4-pyridino)-3-(N-methyl-4-pyridylene)-4-alkyl-5-oxocyclopent-1-ene cyanines[J]. Chin. J. Org. Chem., 1990, 10(1): 54-58.

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若干1-(N-甲基-4-吡啶基)-3-(N-甲基-4-吡啶亚基)-4-烷基环戊烯-1-1酮)-5-菁化合物可见吸收光谱的溶剂效应

Solvent effects on the visible spectra of 1-(N-methyl-4-pyridino)-3-(N-methyl-4-pyridylene)-4-alkyl-5-oxocyclopent-1-ene cyanines

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