title: A novel Na-O-Ni-O-Ni bridging complex of Cl-HXTA, where Cl-HXTA is 2,6-bis[[bis(carboxylatomethyl)amino]methyl]-4-chlorophenolate.
abstract: In the structure of the title compound, heptaaqua-1kappa3O,2kappa2O,3kappa2O-(mu3-2,6-bis[[bis(carboxylatomethyl)amino]methyl]-4-chlorophenolato-1kappaO;2kappa4O,O',N,O1;3kappa4O1N',O",O"')dinickel(II)sodium(I) pentahydrate, [NaNi2(C16H14ClN2O9)(H2O)7].5H2O or [Ni2(Cl-HXTA)(H2O)4[Na(H2O)3]].5H2O, the trinuclear complex unit consists of two distorted NiNO5 octahedra bridged by a phenolate O atom and an NaO4 tetrahedron bridged to one of the Ni octahedra by a carboxylate O atom. There are four intramolecular hydrogen bonds forming four six-membered rings in the complex and the complex molecules are connected to each other by a very complicated hydrogen-bond network.
authors.affiliation: Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, 030006, People's Republic of China.
authors.forename: Bian-Hong
authors.initials: BH
authors.lastname: Meng
authors.forename: Fei
authors.initials: F
authors.lastname: Gao
authors.forename: Miao-Li
authors.initials: ML
authors.lastname: Zhu