In the title polymeric complex salt, {[Ni(C8H4NO2)(C10H8N2)(H2O)3](C8H4NO2)} n , the Ni(II) cation is coordinated by a 4-cyano-benzoate anion, two 4,4'-bi-pyridine ligands and three water mol-ecules in a distorted N2O4 octa-hedral geometry. The 4,4'-bi-pyridine ligands bridge the Ni(II) cations to form polymeric chains of the title complex cations, propagating along the c-axis direction. The di...

The formation mechanism of TiC particles in a Ni-Ti-C system were revealed by using differential thermal analysis (DTA), XRD, and SEM to identify the reaction products in different temperature ranges. The results indicated that the synthesis mechanism of TiC in Ni-Ti-C system was complex; several reactions were involved in the combustion synthesis of TiC-Ni composite. The Ni-Ti intermediate pha...

The title complex, {[Ni(C(7)H(7)N(4)O(2))]OH}(n), has been prepared through hydro-thermal synthesis. The asymmetric unit contains one [Ni(TH)](+) cation (TH is the theophylline anion) and one hydroxide anion. The Ni(2+) ion is coordinated by two N atoms from two neighboring theophylline anions. The alternating linkage of the Ni(2+) cation and theophylline anion results in a one-dimensional chai...

The asymmetric unit of the title complex, [Ni(pht)(2)(pn)(2)] (pht is 5,5-diphenyl-hydantoinate and pn is propane-1,2-diamine) or [Ni(C(15)H(11)N(2)O(2))(2)(C(3)H(10)N(2))(2)], contains one-half [Ni(pht)(2)(pn)(2)] mol-ecule. The Ni(II) atom is situated on a crystallographic center of inversion and shows a distorted octa-hedral coordination geometry. A three-dimensional network structure is ass...

The asymmetric unit of the title compound, [Ni(C(19)H(16)I(4)N(2)O(2))], comprises half of a Schiff base complex. The Ni(II) atom is located on a twofold rotation axis which also bis-ects the central C atom of the 2,2-dimethyl-propane group of the ligand. The geometry around the Ni(II) atom is distorted square-planar, with a dihedral angle of 21.7 (3)° between the symmetry-related N/Ni/O coordi...

In the title layer complex, {[Ni(C(8)H(4)O(4))(C(10)H(8)N(2))(H(2)O)(2)]·2H(2)O}(n), the Ni atom has a distorted octa-hedral environment, defined by the phthalate and 4,4'-bipyridyl ligands which link the Ni atoms, forming a square lattice in the bc plane. This extends into a three-dimensional supra-molecular network through O-H⋯O hydrogen-bonding inter-actions. The Ni atom lies on, and both li...

In the title complex, [Ni(C(16)H(36)N(4))(H(2)O)(2)][Ni(CN)(4)], the [Ni(teta)(H(2)O)(2)](2+) cations (teta = 5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-azacyclo-tetra-deca-ne) and [Ni(CN)(4)](2-) anions are arranged in an alternating fashion through electrostatic and N-H⋯N and O-H⋯N hydrogen-bonding inter-actions, forming a two-dimensional layered structure. Adjacent layers are linked through w...

Bacteriochlorophyll a with Ni replacing the central Mg ion was used as an ultrafast excitation energy dissipation center in reconstituted bacterial LH1 complexes. B870, a carotenoid-less LH1 complex, and B880, an LH1 complex containing spheroidene, were obtained via reconstitution from the subunits isolated from chromatophores of Rhodospirillum rubrum. Ni-substituted bacteriochlorophyll a added...

The monomeric title nickel(II) complex of a salicylaldimine, [Ni(C(20)H(14)N(2)O(4))]·2CH(3)OH, was obtained by the reaction of 2,4-dihydroxy-benzaldehyde and 1,2-phenyl-enediamine with nickel(II) acetate. The Ni(II) atom is coordinated by two N atoms [Ni-N = 1.839 (2) Å] and two O atoms [Ni-O = 1.8253 (19) Å] in an approximately square-planar geometry. In the crystal structure, inter-molecular...