Two heteroleptic zinc(II) complexes:: [Zn(phen)((C9H15O6)2]) and [Zn2(phen)2(H2O)2(C10H16O4)2] • 3H2O

Reactions of a freshly prepared Zn(OH)(2-2x)(CO3)(x)(.)yH(2)O precipitate, phenanthroline with azelaic and sebacic acid in CH3OH/H2O afforded [Zn(phen)(C9H15O4)(2)] (1) and [Zn-2(phen)(2)(H2O)(2)(C10H16O4)(2)](.)3H(2)O (2), respectively. They were structurally characterized by X-ray diffraction methods. Compound 1 consists of complex molecules [Zn(phen)(C9H15O4)(2)] in which the Zn atoms are tetrahedrally coordinated by two N atoms of one phen ligand and two O atoms of different monodentate hydrogen azelaato groups. Intermolecular C(alkyl)-H(...)pi interactions and the intermolecular C(aryl)-(HO)-O-... and O-(HO)-O-... hydrogen bonds are responsible for the supramolecular assembly of the [Zn(phen)(C9H15O4)(2)] Complexes. Compound 2 is built up from crystal H2O molecules and the centrosymmetric binuclear [Zn-2(phen)(2)(H2O)2(C10H16O4)(2)] complex, in which two [Zn(phen)(H2O)](2+) moieties are bridged by two sebacato ligands. Through the intermolecular C(alkyl)-(HO)-O-... hydrogen bonds and pi-pi stacking interactions, the binuclear complex molecules are assembled into layers, between which the lattice H2O molecules are sandwiched. Crystal data: (1) C2/c (no. 15), a 13.887(2), b = 9.790(2), c = 22.887(3) Angstrom, beta = 107.05(1)degrees, U = 2974.8(8) Angstrom(3), Z = 4; (2) P (1) over bar (no. 2), a = 8.414(1), b = 10.679(1), c = 14.076(2) Angstrom, alpha = 106.52(1)degrees, beta = 91.56(1)degrees, gamma = 99.09(1)degrees, U = 1193.9(2) Angstrom(3), Z = 1.