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以外消旋的2-甲基-1,5-戊二胺(MPMD)为结构导向剂,在水热条件下合成出新磷酸铝化合物[Al4P5O19(OH)][C6H18N2](AlPO-MPMD)和新磷酸镓化合物[Ga8P8O32F5.5][C6H18N2]2[H3O+]1.5(GaPO-MPMD).采用单晶X射线衍射结构分析、粉末X射线衍射分析(XRD)、热重-差热分析(TGA-DTA)、固体核磁共振(MAS NMR)、旋光分析(Optical rotation)以及振动圆二色光谱分析(Vibrational circular dichroism,VCD)等技术对产物进行了表征.对产物的VCD实验光谱和理论模拟光谱对比分析及旋光分析表明,在水热合成过程中,具有S构象的手性结构导向剂分子比具有R构象的手性结构导向剂分子更多地进入无机化合物骨架中,显示了手性对映体分子在该水热条件下的原位手性拆分.
A new aluminum phosphate compound [Al4P5O19 (OH)] [C6H18N2] (AlPO-MPMD) was synthesized by the racemic 2-methyl-1,5-pentanediamine (MPMD) (GaPO4) 2 [H3O +] 1.5 (GaPO-MPMD) was synthesized by single crystal X-ray diffraction analysis, XRD and TGA- DTA, MAS NMR, Optical rotation and Vibrational circular dichroism (VCD) were used to characterize the product.Compared with the experimental experimental spectrum and theoretical simulated spectrum The analysis and optical analysis show that the chiral structure directing molecules with S conformation enter into the inorganic compound skeleton more than the chiral structure directing molecules with R conformation in the process of hydrothermal synthesis and show the chiral enantiomers In situ chiral resolution of molecules in this hydrothermal condition.