Angewandte Chemie International Edition
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Inside Cover: Chiral Nanoscale Metal–Organic Tetrahedral Cages: Diastereoselective Self-Assembly and Enantioselective Separation (Angew. Chem. Int. Ed. 24/2010)
The diastereoselective self-assembly of homochiral porous metal–organic tetrahedral M4L6 cages from enantiopure C2-symmetric bridging ligands (H2L) and C3-symmetric octahedral trivalent metal ions is described by Cui and co-workers in their Communication on page 4121 ff. The cages can resolve small racemic alcohols with high enantioselectivity (up to 99.5% ee) by crystallization inclusion, although kinetically stable host–guest complexes were not formed with alcohols in solution.