title: Aqua-(4-carb-oxy-pyridine-2,6-dicarboxyl-ato-κO,N,O)(1,10-phenanthroline-κN,N')nickel(II).
abstract: The title compound, [Ni(C(8)H(3)NO(6))(C(12)H(8)N(2))(H(2)O)], contains an Ni(II) ion, a 1,10-phenanthroline (phen) ligand, a 4-carb-oxy-pyridine-2,6-dicarboxyl-ate (Hptc(2-)) anion and a coordinated water mol-ecule. The Ni(II) atom exhibits a distorted octa-hedral N(3)O(3) environment. O-H⋯O hydrogen bonding between coordinated water and carboxyl-ate O atoms, as well as π-π stacking inter-actions [inter-planar distances between phen rings = 3.293 (2) Å] lead to a supermolecular assembly.
authors.affiliation: Center of Applied Solid State Chemistry Research, Ningbo University, Ningbo, Zhejiang 315211,  People's Republic of China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Zou
authors.forename: Jian-Fei
authors.initials: JF
authors.lastname: Wang
authors.forename: Jian-Li
authors.initials: JL
authors.lastname: Lin
references.citation: Acta Crystallogr C. 2002 Nov;58(Pt 11):m553-5
references.pmid: 12415163
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677