JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Ultrasonic Relaxation for Complexation Reaction Between β-Cyclodextrin and Butanoic Acid in Aqueous Solution
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Ultrasonic Relaxation for Complexation Reaction Between β-Cyclodextrin and Butanoic Acid in Aqueous Solution
Bae, Jong-Rim;
  PDF(new window)
 Abstract
The aim of this work was to reveal the effect of butanoic acid in its dissociated form and undissociated form as a guest molecule on the kinetic parameters in an inclusion reaction with -cyclodextrin (-CD). Ultrasonic absorption measurements in the frequency range from 0.2 to 45 MHz were carried out for -CD solutions with butanoic acid at by ultrasonic relaxation method. The rate and the equilibrium constants were obtained from the guest concentration dependence of the relaxation frequency, and the standard volume change of the complexation reaction were obtained from the maximum absorption per wavelength. A single relaxational absorption was observed, and the cause of the relaxation was attributed to a perturbation of the chemical equilibrium associated with a complexation reaction between -CD and butanoic acid. These results were compared with those in solutions containing both -CD and different guest molecules. It was found that the hydrophobicity of guest molecules played an important role in the formation of the inclusion complex and also that the charge on the carboxylic group had a considerable effect on the kinetic characteristics of the complexation reaction.
 Keywords
Cyclodextrin;Butanoic acid;Inclusion complex;Hydrophobicity;Single relaxational absorption;Maximum absorption per wavelength;
 Language
English
 Cited by
 References
1.
J. Szejtli, "Introduction and general overview of cyclodextrin chemistry" Chem. Rev., vol. 98, no. 5, pp. 1743-1753, 1998. crossref(new window)

2.
J. Nishijo, S. Moriyama, and S. Shiota, "Interactions of cholesterol with cyclodextrins in aqueous solution" Chem. Pharm. Bull. vol. 51, no. 11, pp. 1253-1257, 2003. crossref(new window)

3.
J. L. Manzoori and M. Amjadi, "Spectrofluorimetric study of host-guest complexation of ibuprofen with ${\beta}$-cyclodextrin and its analytical application" Spectrochimica Acta Part A, vol 59, pp. 909-916, 2003. crossref(new window)

4.
M. Zhang, J. Li, L. Zhang, and J. Chao, "Preparation and spectral investigation of inclusion complex of caffeic acid with hydroxypropyl-${\beta}$-cyclodextrin" Spectrochimica Acta Part A, vol. 71, pp. 1891-1895, 2009. crossref(new window)

5.
X. Zhu and S. Xu, " Determination of L-tyrosine by ${\beta}$-cyclodextrin sensitized fluorescence quenching method" Spectrochimica Acta Part A, vol. 77, pp. 566-571, 2010. crossref(new window)

6.
J.-R. Bae, J. K. Kim, and C. W. Lee, "Complex formation of adenosine 3′, 5′-cyclic monophosphate with ${\beta}$-cyclodextrin: kinetics and mechanism by ultrasonic relaxation" Bull. Korean Chem. Soc. vol. 31, no. 2, pp. 442-446, 2010. crossref(new window)

7.
J.-R. Bae, C. W. Lee, "Low-frequency ultrasonic relaxation of ${\beta}$-cyclodextrin and adenosine 5′-monophosphate in aqueous solution" Bull. Korean Chem. Soc. vol. 30, no. 1, pp. 145-148, 2009. crossref(new window)

8.
J.-R. Bae, J. H. Do, "Ultrasonic relaxation for complexation reaction between ${\alpha}$-cyclodextrin and pentanol isomers in aqueous solution" Journal of the Korean Physical Society, vol. 55, no. 6, pp. 2411-2415, 2009. crossref(new window)

9.
J-R. Bae, P-K. Choi, and K. Takagi, "Ultrasonic relaxation study in methylcyclohexane and methyl acetate by plano-concave resonator method" J. Acoust. Soc. Jpn. (E), vol. 9, no. 5, pp. 241-245, 1988. crossref(new window)

10.
A. M. Matheson, Molecular Acoustics, Wiley-Interscience, New York, 1970.

11.
S. Kato, H. Nomura, and Y. Miyahara, "Ultrasonic relaxation study of aqueous solutions of cyclodentrins", J. Phys. Chem., vol. 89, no. 89, pp. 5417-5421, 1985. crossref(new window)

12.
M. J. Baandamer, Introduction to Chemical Ultrasonics, Academic press, New York, 1973.

13.
T. Fukahori, S. Nishikawa, and K. Yamaguchi, "Ultrasonic relaxation due to inclusion complex of amino acid by ${\beta}$-cyclodextrin in aqueous solution" J. Acoust. Soc. Am., vol. 115, no. 5, pp. 2325-2330, 2004. crossref(new window)

14.
S. Nishikawa, T. Fukahori, and K. Ishikawa, "Ultrasonic relaxations in aqueous solutions of propionic acid in the presence and absence of ${\beta}$-cyclodextrin", J. Phys. Chem. A, vol. 106, no. 12, pp. 3029-3033, 2002 crossref(new window)

15.
T. Fukahori, S. Nishikawa, and K. Yamaguchi, "Kinetics on isomeric alcohols recognition by ${\alpha}$- and ${\beta}$-cyclodextrin using ultrasonic relaxation method" Bull. Chem. Soc. Jpn., vol. 77, no. 12, pp. 2193-2198, 2004. crossref(new window)