title: Bis(saccharinato-kappa N)zinc(II) complexes with N,N'-bidentate 2-aminomethylpyridine and 2-aminoethylpyridine.
abstract: The structures of trans-bis[2-(aminomethyl)pyridine-kappa(2)N,N']bis(saccharinato-kappa N)zinc(II), [Zn(C(7)H(4)NO(3)S)(2)(C(6)H(8)N(2))(2)], (I), and [2-(aminoethyl)pyridine-kappa(2)N,N']bis(saccharinato-kappa N)zinc(II), [Zn(C(7)H(4)NO(3)S)(2)(C(7)H(10)N(2))], (II), exhibit octa- and tetrahedrally coordinated Zn(II) atoms, respectively. The diamine ligands behave as N,N'-bidentate ligands, while saccharinate (sac) is coordinated through the N atom. In (I), the complex lies about an inversion centre with the Zn atom disordered and displaced by 0.256 (2) A from a centre of symmetry towards a sac N atom. The crystal structure of (I) is stabilized by N-H...O hydrogen bonds and the crystal packing of (II) is determined by hydrogen bonding as well as weak pi-pi stacking interactions between the sac ligands.
authors.affiliation: Department of Chemistry, Faculty of Arts and Science, Ondokuz Mayis University, 55139 Kurupelit Samsun, Turkey. vtyilmaz@omu.edu.tr
authors.forename: Veysel T
authors.initials: VT
authors.lastname: Yilmaz
authors.forename: Sema
authors.initials: S
authors.lastname: Caglar
authors.forename: William T A
authors.initials: WT
authors.lastname: Harrison