화학공학소재연구정보센터
Inorganic Chemistry, Vol.58, No.11, 7180-7188, 2019
Influence of Conformational Change and Interligand Hydrogen Bonding in a Chiral Metal-Organic Cage
We report about the coordination-driven self-assembly of a chiral bis-pyridyl ligand (1), synthesized from steroidal cholic acid, with Pd(II) ions to form a chiral metal-organic Pd-2(1)(4) cage. The self-assembly of the cage was facilitated by favorable conformational change in the alkyl chain of the cholic acid. Interligand hydrogen bonding played a crucial role in directing the formation of a C-4 symmetric cage among different possible isomers, as suggested by DFT studies, and control experiments with different ligands.