Volume : V, Issue : V, May - 2015

Spectral Characteristics and Solvent Effects of 4– (Phenylazo)benzoic acid and 2–(4–Hydroxyphenylazo) benzoic acid on ï�‚�‚¡–cyclodextrin

S. Lizy Roselet, Dr. J. Prema Kumari

Abstract :

 The absorption and fluorescence spectra of 4–(Phenylazo)benzoic acid and 2–(4–Hydroxyphenylazo)benzoic acid have been recorded in different solvents of varying polarities and a–cyclodextrin (a–CD). In  all solvents, the absorption and emission maxima of 2–(4–Hydroxyphenylazo)benzoic acid are red shifted than 4–(Phenylazo)benzoic acid. Studies on cyclodextrin reveal that both compounds form 1:1 inclusion complexes with a–CD. The  thermodynamic parameter (a G) of inclusion process is also determined

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

S. Lizy Roselet, Dr. J.Prema Kumari Spectral Characteristics and Solvent Effects of 4� (Phenylazo)benzoic acid and 2�(4�Hydroxyphenylazo) benzoic acid on ï�‚�‚¡�cyclodextrin Indian Journal of Applied Research, Vol.5, Issue : 5 May 2015

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