超分子体系中的分子识别研究(ⅩⅦ)——几种有机硒修饰β-环糊精与脂肪醇的包结配位作用  

Molecular Recognition Study on Supramolecular System(ⅩⅦ) Inclusion Complexation of Some β Cyclodextrin Derivatives Containing Organo selenium with Aliphatic Alcohols

作　　者：刘育[1] 厉斌[1] 李自运[1] 李菁[1] 

机构地区：[1]南开大学化学系

出　　处：《高等学校化学学报》1998年第9期1440-1442,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金;国家杰出青年科学基金;国家教委跨世纪优秀人才基金

摘　　要：环糊精双核铜配合物以及磷酰基修饰环糊精可通过离子间的静电相互作用扩展对分子的键合能力和分子选择性［１～４］．含有芳香基的修饰环糊精可通过主－客体间的几何互补和诱导楔合作用扩展手性对映体识别能力［５］．本文用紫外－可见分光光度技术研究了几种有机硒修饰β...The spectrophotometric titrations have been performed at 298.15 K in buffered aqueous solution(pH=7.20) to give the stability constants(lg K s) for the supramolecular system formed by mono [6 phenylseleno) 6 deoxy] β cyclodextrin(1) , nono [6 ( p chlorophenylseleno) 6 deoxy] β cyclodextrin(2), mono [6 (naphthylseleno) 6 deoxy] β cyclodextrin(3), and mono [6 (benzylseleno) 6 deoxy] β cyclodextrin(4) with a series of aliphatic alcohols. The molecular binding ability and selectivity for aliphatic alcohols of modified β cyclodextrins(1-4) are discussed from the size fit, geometrical complement, van der Waals force, hydrogen bonding, and hydrophobic interactions relationships between the host cavity and the guest molecule. The results investigated indicate that the benzylseleno moiety of β cyclodextrin derivative(4) as a probe for spectrometry can enhance not only the molecular binding ability but also the molecular recognizing ability.

关 键 词：有机硒修饰 环糊精 分子识别 脂肪醇 包结配位 

分 类 号：O636.12[理学—高分子化学] O623.41[理学—化学]