Synthesis of chiral coordination polymers by spontaneous resolution

Three complexes have been synthesized from the reactions of 3,3-tetramethyleneglutaric acid (H(2)TMG), Cd(NO3)(2), and secondary ligands: [Cd(TMG)](n) (1), {[Cd(TMG)(1,10-phen), H2O] center dot 2H(2)O}(n) ( 2), and [Cd(TMG)(4,4'-bipy)](n) ( 3) ( phen = 1,10-phenanthroline, 4,4'- bipy = 4,4'-bipyridine). By adopting potential chiral ligands, metal-organic helical chains as a transmitter for chiral information, and coordination bonds as chiral discriminative interactions, the chiral coordination polymer 3 with an interesting three-dimensional architecture has been synthesized successfully by spontaneous resolution.