POPULATION CHARACTERISTICS OF CYCLODEXTRIN COMPLEX STABILITIES IN AQUEOUS-SOLUTION
POPULATION CHARACTERISTICS OF CYCLODEXTRIN COMPLEX STABILITIES IN AQUEOUS-SOLUTION
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DOI:
10.1002/jps.2600840712
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发表时间:
1995-07-01
影响因子:
3.8
通讯作者:
CONNORS, KA
中科院分区:
文献类型:
--
作者:
CONNORS, KA
Binding constants (K-11) of 1:1 complexes of alpha-cyclodextrin, beta-cyclodextrin, and gamma-cyclodextrin with many substrates (guests) were collected from published sources and subjected to statistical analysis. All systems refer to 25 +/- 5 degrees C and aqueous solution. The frequency distributions of log K-11 are satisfactorily described by normal distributions with the following parameters (n = number of complexes, mu = population mean, sigma = population standard deviation): alpha-cyclodextrin, n = 663, mu = 2.11, sigma = 0.90; beta-cyclodextrin, n = 721, mu = 2.69, sigma = 0.89; gamma-cyclodextrin, n = 166, mu = 2.55, sigma = 0.93. Stabilities of pairs of cyclodextrin complexes with a common substrate are not precisely correlated, but they do not appear to be wholly independent quantities. The stabilities of alpha-cyclodextrin complexes are consistent with a recent interpretation of solvent effects on alpha-cyclodextrin complex stabilities.