CALORIMETRIC STUDY OF A NEW INCLUSION COMPLEX, 3.4-CENTER-DOT-BETA-CYCLODEXTRIN-CENTER-DOT-6H(2)O

Authors
ZHANG LM TAN ZC WU M
Citation
Lm. Zhang et al., CALORIMETRIC STUDY OF A NEW INCLUSION COMPLEX, 3.4-CENTER-DOT-BETA-CYCLODEXTRIN-CENTER-DOT-6H(2)O, Pure and applied chemistry, 69(11), 1997, pp. 2281-2288
Citations number
15
Categorie Soggetti
Chemistry
Journal title
Pure and applied chemistry → ACNP
ISSN journal
00334545
Volume
69
Issue
11
Year of publication
1997
Pages
2281 - 2288
Database
ISI
SICI code
0033-4545(1997)69:11<2281:CSOANI>2.0.ZU;2-1
Abstract
Heat capacity properties of a new inclusion complex ZnS23.4. 8 beta-cy clodextrin . 6H(2)O and a mechanical mixture of ZnS and beta-cyclodext rin were investigated in the range of 80 similar to 350 K by means of a miniaturized adiabatic calorimeter with a precision of +/-0.2%. Glas s transition phenomena were observed in relation to the freezing of co nfigurational change of the protons engaged in the four-membered hydro gen-bonded ring. The difference in heat capacities of the two samples was thermodynamically accounted for in terms of quantum size effect an d interfacial effect.