School of Chemistry and Chemical Technology and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
J Am Chem Soc. 2012 Apr 25;134(16):6904-7. doi: 10.1021/ja212132r. Epub 2012 Apr 11.
The self-assembly of enantiopure pyridyl-functionalized metallosalan units affords a homochiral helicate cage, [Zn(8)L(4)Cl(8)], in which the optical rotation of each ligand is increased by a factor of 10 upon coordination. The octanuclear cage featuring a chiral amphiphilic cavity exhibits enantioselective luminescence enhancement by amino acids in solution. The cage exists in two different crystalline polymorphic forms that possess porous structures built of helicate cages interconnected by 1D channels or pentahedral cages and have the ability to separate small racemic molecules by adsorption but with different enantioselectivities.
手性吡啶功能化金属水杨醛单元的自组装提供了一种同手性的螺旋笼状配合物 [Zn(8)L(4)Cl(8)]，其中每个配体的旋光性在配位后增加了 10 倍。具有手性两亲性空腔的八核笼状化合物在溶液中表现出对氨基酸的手性发光增强。该笼状化合物存在两种不同的晶型多态形式，具有由螺旋笼状化合物通过 1D 通道或五面体笼状化合物相互连接而成的多孔结构，具有通过吸附分离小对映体分子的能力，但具有不同的对映选择性。
