Metal-orgnaic co-ordination frameworks based on mixed N- and O-donor ligands: crystal structures of (Co(phth)_2(bipy)) and (Co_2(mal)_2(bipy)(H_2O)_2) (phth = phthalate, mal = malonate, bipy = 4, 4'-bipyridine)

摘要

Two new metal-organic co-ordination frameworks have been prepared hydrothermally in mixed ligand systems and their crystal structures determined: [Co(phth)_2(bipy)] is composed of a complex three-dimensional framework consisting of interlinked Co-phth-Co and Co-bipy-Co chains; [Co_2(mal)_2(bipy)(H_2O)_2] is also three-dimensional, being composed of Co-mal sheets which are pillared by bidentate bipy molecules (phth = phthalate, mal = malonate, bipy = 4, 4'-bipyridine). Both frameworks enclose small void channels.