Preparation of amino acid chiral ionic liquid and visual chiral recognition of glutamine and phenylalanine enantiomers
作者:Luzheng Dong、Jun Wu、Xiashi Zhu
DOI:10.1002/chir.23665
日期:2024.4
of solvent, pH, time, temperature, metal ions, and other amino acids on visual chiral recognition were optimized. The minimum concentrations of Gln and Phe for visual chiral recognition were 0.20 mg/ml and 0.28 mg/ml, respectively. The mechanism of chiral recognition was investigated by FT‐IR, TEM, SEM, TG, XPS, and CD. The location of the host‐guest inclusion or molecular placement has been conformationally
本文以L-苯丙氨酸和咪唑为原料制备了氨基酸手性离子液体(AACIL)。通过CD、FT-IR、 1核磁共振氢谱,和13 13C NMR谱。该手性识别传感器由AACIL和Cu(II)构建,对谷氨酰胺(Gln)和苯丙氨酸(Phe)的对映体表现出不同的手性视觉响应(溶解度或色差)。优化了溶剂、pH、时间、温度、金属离子和其他氨基酸对视觉手性识别的影响。用于视觉手性识别的 Gln 和 Phe 的最低浓度分别为 0.20 mg/ml 和 0.28 mg/ml。通过 FT-IR、TEM、SEM、TG、XPS 和 CD 研究了手性识别机制。基于Gaussian 09软件对主客体包含或分子布局的位置进行了构象搜索。