Study of the forces responsible for binding of polar substrates in the cyclohexaamylose cavity by positron annihilation techniques
Study of the forces responsible for binding of polar substrates in the cyclohexaamylose cavity by positron annihilation techniques
复制标题
通过正电子湮灭技术研究环六直链淀粉空腔中极性底物结合的力
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
H. Ache
中科院分区：
文献类型：
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作者：
E. Hall;H. Ache
The complex formation constants for a series of inclusion complexes of p-, m-, and o-nitrophenol and p-, m-, and o-nitrobenzyl alcohol with cyclohexaamylose were determined by positron annihilation techniques. The formation constants, K/sub c/, were found to be 341, 54, 8, 28, 25, and 9 M/sup -1/, respectively. The results seem to suggest that hydrogen bonding and/or London dispersion forces are mainly responsible for the binding of these guest molecules in the cyclohexaamylose cavity, while hydrophobic interactions play only a minor role in these systems. In the ortho isomers, complex stability is greatly reduced due to steric hindrance. 1 table.
