title: Bis(pyridine-2,6-dimethanol-N,O,O')cobalt(II) and -copper(II) disaccharinate dihydrate: three-dimensional structures with extensive hydrogen bonds and aromatic pi-pi-stacking interactions.
abstract: Bis(pyridine-2,6-dimethanol-N,O,O')cobalt(II) disaccharinate dihydrate, [Co(C7H9NO2)2](C7H4NO3S)2*2H2O, (I), and bis(pyridine-2,6-dimethanol-N,O,O')copper(II) disaccharinate dihydrate, [Cu(C7H9NO2)2](C7H4NO3S)2*2H2O, (II), collectively [M(dmpy)2](sac)2*2H2O (where M is Co(II) or Cu(II), sac is the saccharinate anion and dmpy is pyridine-2,6-dimethanol), are isostructural. The [M(dmpy)2]2+ cations exhibit distorted octahedral geometry in which the two neutral dmpy species act as tripodal N,O,O'-tridentate ligands. The crystal packing is determined by hydrogen bonding, as well as by weak pyridine-saccharinate pi-pi-stacking interactions.
authors.affiliation: Department of Chemistry, Faculty of Arts and Science, Ondokuz Mayis University, 55139 Kurupelit Samsun, Turkey.
authors.forename: Omer
authors.initials: O
authors.lastname: Andac
authors.forename: Serkan
authors.initials: S
authors.lastname: Guney
authors.forename: Yildiray
authors.initials: Y
authors.lastname: Topcu
authors.forename: Veysel T
authors.initials: VT
authors.lastname: Yilmaz
authors.forename: William T A
authors.initials: WT
authors.lastname: Harrison