Preparation and Characterization of p-tert-Butylcalix[4]arene Modified Sol-Gel Column for Open-Tubular Capillary Electrochromatography

Preparation and Characterization of p-tert-Butylcalix[4]arene Modified Sol-Gel Column for Open-Tubular Capillary Electrochromatography
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开管毛细管电色谱用对叔丁基杯[4]芳烃修饰溶胶-凝胶柱的制备与表征

DOI:
10.1080/10826070903245557
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发表时间:
2009-10
影响因子:
1.3
通讯作者:
--
中科院分区:
化学4区
文献类型:
--
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摘要 采用溶胶-凝胶法制备了对叔丁基杯[4]芳烃溶胶-凝胶涂层毛细管(BCx4-SGCC),并通过红外光谱和电渗流对其进行了表征。以苯二酚位置异构体和不具有对称碳中心的轴向手性联萘衍生物2-氨基-2′-羟基-1,1′-联萘(BHA)为探针,研究了它们的分离性能。这些分析物在开管毛细管电色谱分离模式的 BCx4-SGCC 上的迁移行为受到杯芳烃与分析物之间超分子相互作用的影响。使用DFT-B3LYP/STO-3G**基集的量子化学计算结果与苯二酚和BHA的迁移行为一致。
Abstract Using the sol-gel method, p-tert-butyl-calix[4]arene sol-gel coating capillary (BCx4-SGCC) was prepared and characterized by infrared spectroscopy and electroosmotic flow. Their separation performance was investigated by using benzenediol positional isomers and axially chiral binaphthyl derivative 2-amino-2′-hydroxy-1,1′-binaphthyl (BHA) without symmetric carbon center as probes. The migration behaviors of these analytes on the BCx4-SGCC with the open tubular capillary electrochromatography separation mode were influenced by the supermolecular interaction between calixarene and analytes. The results from the quantum chemistry calculation using DFT-B3LYP/STO-3G** base set were consistent with the migration behaviors of benzenediol and BHA.
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