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首页> 外文期刊>Separation and Purification Technology >Selective inclusion and separation of cinnamaldehyde and benzaldehyde by insoluble β-cyclodextrin polymer
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Selective inclusion and separation of cinnamaldehyde and benzaldehyde by insoluble β-cyclodextrin polymer

机译：不溶性β-环糊精聚合物选择性包合和分离肉桂醛和苯甲醛

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A novel selective separation method for cinnamaldehyde and benzaldehyde has been developed using insoluble β-cyclodextrin polymer as a host and cinnamaldehyde and benzaldehyde as model guests. The insoluble β-cyclodextrin polymer could form inclusion complex with cinnamaldehyde and benzaldehyde in solid state, so as to selectively separate benzaldehyde and cinnamaldehyde. The inclusion equilibrium constants for cinnamaldehyde and benzaldehyde over the β-cyclodextrin polymer have been calculated through their solid UV-vis spectra, and the binding energies between β-cyclodextrin polymer and the two substrates complexes have been calculated with ONIOM2(B3LYP/6-31G(d):PM3) and semi-continuum solvation model. The driving force of the separation between cinnamaldehyde and benzaldehyde is through the different weak interaction with β-cyclodextrin polymer, i.e., hydrogen bond interaction, which is evidenced by the different binding energies and different inclusion equilibrium constants.
机译：以不溶性β-环糊精聚合物为主体，肉桂醛和苯甲醛为模型客体，开发了肉桂醛和苯甲醛的选择性分离新方法。不溶性β-环糊精聚合物可以与肉桂醛和苯甲醛形成固态的包合物，从而选择性地分离出苯甲醛和肉桂醛。通过固体紫外可见光谱计算了β-环糊精聚合物上肉桂醛和苯甲醛的夹杂物平衡常数，并使用ONIOM2（B3LYP / 6-31G）计算了β-环糊精聚合物与两种底物复合物之间的结合能。 （d）：PM3）和半连续溶剂化模型。肉桂醛和苯甲醛之间分离的驱动力是通过与β-环糊精聚合物的不同弱相互作用，即氢键相互作用，这由不同的结合能和不同的夹杂物平衡常数来证明。

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