The Complexation of Some Amino Acids by Isomers of Dicyclohexano-18-Crown-6 and 18-Crown-6 in Methanol

被引：0
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作者：
Hans-Jürgen Buschmann
Lucia Mutihac
机构：
[1] Deutsches Textilforschungszentrum Nord-West,Department of Analytical Chemistry, Faculty of Chemistry
[2] University of Bucharest,undefined
来源：
Journal of inclusion phenomena and macrocyclic chemistry | 2002年 / 42卷
关键词：
amino acids; complex formation; dicyclohexano-18-crown-6; stereoisomer;
D O I：
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学科分类号：
摘要：
The complexation of some amino acids (glycine, L-alanine,L-leucine, L-valine, and L-serine) by the cis-syn-cisand cis-anti-cis isomers of dicyclohexano-18-crown-6 (DC18C6) in methanol was studied by calorimetric titrationmeasurements. Both isomers exhibited a significant ability to bind the amino acidsmentioned above. The results obtained demonstrate that the structural isomers ofDC18C6 are significantly different in terms of thermodynamics concerning their complexationwith the amino acids. The stability constants and the thermodynamic data forthe reaction of the amino acids under study in protonated form and 18-crown-6 (18C6) are reported.
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页码：193 / 195
页数：2
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