Li Gao, Yu Weibin, Cui Yong
School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240, China.
J Am Chem Soc. 2008 Apr 9;130(14):4582-3. doi: 10.1021/ja078317n. Epub 2008 Mar 18.
A highly ordered homochiral nanotubular crystalline framework was assembled from a hexameric Zn6L6metallaycle that was built from metallosalen ZnL units (H2L = (R,R)-(-)-N,N'-Bis(3-tert-butyl-5-(4- pyridyl) salicylidene)-1,2-diaminocyclohexane) by the complementary coordination of the pyridyl groups to the metal centers. Chiral channels and hydrophobic functionality presented by this structure make it an excellent host to recognize and separate racemic alcohols with high enantioselectivity (up to 99.5%). The crystalline solid can be easily recycled and reused five times without loss of crystallinity and enantioselectivity.
一种高度有序的同手性纳米管晶体框架由六聚体Zn6L6金属环组装而成，该金属环由金属水杨醛锌ZnL单元（H2L = (R,R)-(-)-N,N'-双(3-叔丁基-5-(4-吡啶基)水杨醛)-1,2-二氨基环己烷）通过吡啶基团与金属中心的互补配位构建而成。这种结构呈现出的手性通道和疏水功能使其成为识别和分离外消旋醇的优异主体，具有高对映选择性（高达99.5%）。该晶体固体易于回收利用，可重复使用五次而不损失结晶度和对映选择性。
