STRUCTURE OF AQUACHLORO[TRIS(2-AMINOETHYL)AMINE]NICKEL(II) CHLORIDE MONOHYDRATE

[Ni(C6H18N4)(H2O)Cl]Cl.H2O, M(r) = 311.88, monoclinic, P2(1)/a, a = 14.117 (2), b = 11.040 (2), c = 8.828 (1) angstrom, beta = 106.8 (2)-degrees, V = 1317 (1) angstrom3, Z = 4, D(x) = 1.57 Mg m-3, lambda(Mo Kalpha) = 0.7107 angstrom, mu = 1.879 mm-1, F(000) = 656, T = 293 K, R = 0.030 for 2756 independent reflections [F(o) > 3sigma(F(o))]. The Ni atom is octahedrally surrounded by the four N atoms of the tren [tris(2-aminoethyl)amine] ligand, N(CH2CH2NH2)3, One Chloride ion and one water molecule. The second chloride ion and the second water molecule are not bound to Ni(II) and contribute only to the crystal packing stabilization. The title compound has also been characterized by thermogravimetric analysis and infrared spectroscopy. The results are discussed and examined in comparison to the electronic spectra and conductivity measurements in aqueous solution where the molecular structure is formulated differently as [Ni(C6H18N4)(H2O)2]Cl2.