Thermodynamics of binding of alpha-cyclodextrin to straight-chain alkyl derivatives in aqueous solution

Stödeman, Magnus (author): Lund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH

Gomez-Orellana, I (author)

Hallen, D (author)

(creator_code:org_t)

2003
2003
English.
In: Journal of Inclusion Phenomena and Molecular Recognition in Chemistry. - 0923-0750. ; 46:3-4, s. 125-132

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Abstract Subject headings

Apparent standard Gibbs energy, enthalpy, entropy, and heat capacity data of the interactions of alpha-cyclodextrin (alphaCD) to some n-carboxylates H(CH2)(n)COO- (n = 4 - 6), are determined by isothermal titration microcalorimetry at different temperatures in phosphate buffer, pH 9.0, assuming a 1 : 1 model in dilute solution. Modelling of contributions of the thermodynamic properties of the solution indicates that aCD undergoes conformational change upon binding to homologous series of n-carboxylates, n-alcohols, alpha,omega-alkane dicarboxylates and alpha,omega-alkane diols.

About the subject

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