SOLVENT EFFECTS AND AGGREGATION ACTION OF NOVEL PYRYLIUM-SQUARYLIUM CYANINE DYES

doi:10.7517/j.issn.1674-0475.2000.04.308

Abstract

Abstract: Solvent effects of five novel pyrylium squarylium cyanine dyes in thirteen different solvents were studied. It was found that the positive solvatochromism of the dyes was dependent on the function f(n,ε) with good linearity. The hydrogen bond effect of the solvents was also discussed. Dimers of the dyes in n propanol/water system were investigated and two different aggregation properties were found. Dimer was also detected in dichloromethane with the aid of APCI Mass spectra.

Key words: cyanine dye, squarylium dye, solvent effect, dimer

CLC Number:

TQ57

CHEN Jian-guo, LI Yuan, HUANG De-yin. SOLVENT EFFECTS AND AGGREGATION ACTION OF NOVEL PYRYLIUM-SQUARYLIUM CYANINE DYES[J]. Imaging Science and Photochemistry, 2000, 18(4): 308-315.

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