title: A supramolecular sorting hat: stereocontrol in metal-ligand self-assembly by complementary hydrogen bonding.
abstract: A combination of self-complementary hydrogen bonding and metal-ligand interactions allows stereocontrol in the self-assembly of prochiral ligand scaffolds. A unique, non-tetrahedral M4L6 structure is observed upon multicomponent self-assembly of 2,7-diaminofluorenol with 2-formylpyridine and Fe(ClO4)2. The stereochemical outcome of the assembly is controlled by self-complementary hydrogen bonding between both individual ligands and a suitably sized counterion as template. This hydrogen-bonding-mediated stereoselective metal-ligand assembly allows the controlled formation of nonsymmetric discrete cage structures from previously unexploited ligand scaffolds.
authors.affiliation: University of California Riverside, Department of Chemistry, Riverside, CA 92521 (USA).
authors.forename: Michael C
authors.initials: MC
authors.lastname: Young
authors.forename: Lauren R
authors.initials: LR
authors.lastname: Holloway
authors.forename: Amber M
authors.initials: AM
authors.lastname: Johnson
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Hooley
keywords: diastereoselectivity; hydrogen bonding; ligand effects; self-assembly; supramolecular chemistry