Synthesis, Crystal Structure and Properties of Mononuclear Containing N-donor Ligands Zinc(II) and Nickel(II) Complexes

Two new complexes [Zn(BPP)(2)(H2O)(4)](2,6-NDS)center dot 0.5H(2)O (1) and [Ni(phen)(2)(H2O)(2)](A -2,5-DSA)center dot 3H(2)O (2) (2,6-NDS = 2,6-naphthalenedisulfonate, A -2,5-DSA = aniline-2,5-disulfonic, acid, BPP = 1,3-bis (4-pyridyl)propane, phen = 1,10-phenanthroline) have been obtained and structurally determined by X-ray single crystal diffraction. Complex 1 is a mononuclear molecule, in which Zn2+ ion is coordinated with two nitrogen atoms of two 131)1) molecules and four water oxygen atoms, forming mononuclear coordinated cation. The molecule is connected into 11) double helical cation chain by hydrogen bonds of coordinated water molecules and nitrogen atoms among coordinated cations. Double helical cation chains by hydrogen bond link the free 2,6-NDS anion to form 2D supramolecular network through hydrogen bonds. Complex 2 is also a mononuclear molecule, in which Ni2+ ion is coordinated with four nitrogen atoms of two phen molecules and two water oxygen atoms, forming mononuclear coordinated cation. There are abundant hydrogen bonds between coordinated cation, free water molecules and A -2,5-DSA anion, leading to a 2D supramolecular network. CCDC: 723829, 1; 740767, 2.