Azo-hydrazo Tautomerism and Inclusion Complexation of 1-phenylazo-2-naphthols with Various Solvents and β-cyclodextrin

被引:16
作者
Prabhu, A. Antony Muthu [1 ]
Venkatesh, G. [1 ]
Rajendiran, N. [1 ]
机构
[1] Annamalai Univ, Dept Chem, Annamalainagar 608002, Tamil Nadu, India
关键词
1-phenyazo-2-naphthol; beta-cyclodextrin; Inclusion complex; Azo-hydrazo tautomerism; HOST-GUEST INTERACTIONS; INTRAMOLECULAR CHARGE-TRANSFER; ALPHA-CYCLODEXTRIN; DYNAMIC ASPECTS; MOLECULAR RECOGNITION; TRANS ISOMERIZATION; PROTON-TRANSFER; METHYL-ORANGE; SCHIFF-BASES; KINETICS;
D O I
10.1007/s10895-010-0642-0
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Spectral characteristics of sudan I (SDI), sudan II (SDII) and mordant violet-5 (MV5) have been studied in various solvents and beta-cyclodextrin (beta-CD). The inclusion complex of the above molecules with beta-CD was analyzed by UV-visible, fluorometry, and DFT methods. The solvent study shows that azo-hydrazo tautomer is present in these molecules. The increase in the fluorescence intensity and a large bathochromic shift in the S-1 state indicate these molecules forms 1:1 inclusion complex with beta-CD.
引用
收藏
页码:961 / 972
页数:12
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