Decorated traditional cellulose with nanoscale chiral metal–organic frameworks for enhanced enantioselective capture,Chemical Communications

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Decorated traditional cellulose with nanoscale chiral metal–organic frameworks for enhanced enantioselective capture
Chemical Communications ( IF 4.3 ) Pub Date : 2021-09-09 , DOI: 10.1039/d1cc04465f
Yun Guo ₁ , Ling Zhang ₁ , Kexuan Wang ₁ , Ajuan Yu ₁ , Shusheng Zhang ₂ , Gangfeng Ouyang ₂

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Herein, a rapid approach toward the size/morphology-controlled synthesis of [Cu(L-mal)(bipy)·2H₂O] (CuLBH) was developed by adjusting the concentrations of 2-methylimidazole (2-MI) and copper ions. The chiral separation efficiency test indicated that the nano-diameter CuLBH exhibited better selective potential towards (±)-1-(1-naphthyl)ethanol (NE) by providing more fully exposed recognition sites. In order to further improve the selectivity for NE enantiomers and avoid the aggregation of MOF nanoparticles, the nanosized CuLBH-decorated carboxylated cellulose (CC) composite CC–CuLBH was designed by controlling the ratio of the solvent and Cu²⁺, which exhibited much higher enantioselectivity than those of pristine CC and even nano CuLBH.

中文翻译：

用纳米级手性金属-有机骨架装饰传统纤维素以增强对映选择性捕获

在此，通过调节 2-甲基咪唑 (2-MI) 和铜离子的浓度，开发了一种快速合成 [Cu( L -mal)(bipy)·2H ₂ O] (CuLBH) 的方法. 手性分离效率测试表明，纳米直径的 CuLBH 通过提供更充分暴露的识别位点，对 (±)-1-(1-萘基) 乙醇 (NE) 表现出更好的选择潜力。为了进一步提高对 NE 对映体的选择性并避免 MOF 纳米粒子的聚集，通过控制溶剂与 Cu ²⁺的比例设计了纳米尺寸的 CuLBH 修饰的羧化纤维素 (CC) 复合材料 CC-CuLBH ，其表现出更高的比原始 CC 甚至纳米 CuLBH 的对映选择性。

更新日期：2021-09-16

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