ABSTRACT: In the title compound, [Ni(C3H10N2)3]2[Ni(C3H10N2)2(H2O)2]Br6·2H2O, one Ni(2+) cation, located on an inversion centre, is coordinated by four N atoms from two ligands and by two water O atoms. The other Ni(2+) cation, located in a general position, is coordinated by six N atoms from three ligands. In both cases, the Ni(2+) cation has an octa-hedral coordination environment. The overall structural cohesion is ensured by three types of hydrogen bonds, N-H?Br, O-H?Br and O-H?O, which connect the two types of complex cations, the bromide counter-anions and the lattice water molecules into a three-dimensional network.
Project description:The ionic Ni(II) title complex, [Ni(C(3)H(10)N(2))(2)(H(2)O)(2)][Ni(SO(4))(2)(C(3)H(10)N(2))(2)], is built up of [Ni(dipr)(2)(H(2)O)(2)](2+) complex cations and [Ni(dipr)(2)(SO(4))(2)](2-) complex anions (dipr is propane-1,3-diamine). Both Ni(II) atoms display a slightly distorted octa-hedral coordination and are located on inversion centers. There are several types of hydrogen-bonding inter-actions, which connect complex cations and anions into a two-dimensional network parallel to (010). Hydrogen bonds formed by the axially coordinated water mol-ecule of the complex cation and one of the O atoms of the sulfate groups of the complex anion (first type) link them into chains along the c axis. These chains are linked to each other through hydrogen bonds formed by an O atom (second type) of the SO(4) groups and NH(2) groups of the ligand of the complex cations from neighboring chains, forming a two-dimensional hydrogen-bonded net perpendicular to the b axis. The third type of O atoms of the sulfate groups of the complex anion are also linked into chains by a combination of both previously described types of H-atom connections.
Project description:In the title compound, [CoBr(CH5N)(C3H10N2)2]Br2, the cobalt(III) ion has a distorted octa-hedral coordination environment and is surrounded by four N atoms in the equatorial plane, with an additional N atom and the Br atom occupying the axial positions. In the crystal, the complex cation and the two counter anions are linked via N-H?Br and C-H?Br hydrogen bonds, forming a three-dimensional network.
Project description:In the title complex, [Ni(C(13)H(10)N(4)O(8))(H(2)O)(2)]·2H(2)O, the Ni(2+) cation is six-coordinated by two N atoms and two O atoms from the tetra-dentate anion in equatorial positions and by two water O atoms in axial positions, leading to a distorted octa-hedral environment. The central C atom of the propanediyl unit is disordered over two sites in a 0.531?(6):0.469?(6) ratio. In the crystal, adjacent mol-ecules are linked through O-H?O and N-H?O hydrogen-bonding inter-actions into a three-dimensional network.
Project description:The asymmetric unit of the title compound, [Ni(C(3)H(10)N(2))(2)(H(2)O)(2)](C(4)O(4))·4H(2)O, contains one-half of the diaqua-bis(1,3-propane-diamine)nickel(II) cation, one-half of the centrosymmetric squarate anion and two uncoordinated water mol-ecules. In the cation, the Ni(II) atom is located on a crystallographic inversion centre and has a slightly distorted octa-hedral coordination geometry. The six-membered chelate ring adopts a chair conformation. O-H?O hydrogen bonds link the cation and anion through the water mol-ecule, while N-H?O hydrogen bonds link the cation and anion and cation and water mol-ecules. In the crystal structure, inter-molecular O-H?O and N-H?O hydrogen bonds link the mol-ecules into a three-dimensional network structure.
Project description:The title compound, [Au2(C27H26P2)2][NiCl4]·C4H10O, consists of a digold(I) complex cation, an [NiCl4](2-) complex anion and a diethyl ether solvent mol-ecule. Two 1,3-bis-(di-phenyl-phosphan-yl)propane (dppp) ligands bridge two Au(I) atoms, forming a metallacycle in which each of the Au(I) atoms is coordinated in a slightly distorted linear environment by two P atoms. In the complex anion, the Ni(II) atom is coordinated by four chloride ligands in a distorted tetra-hedral geometry. The complex cation and the complex anion form a cation-anion pair through two Au?Cl contacts of 3.040?(1) and 3.021?(2)?Å. One of the phenyl groups of the dppp ligand is disordered over two positions with equal occupancies.
Project description:In the title compound, [CoCl(C2H7N)(C3H10N2)2]Cl2, the Co(III) ion has a distorted octa-hedral coordination environment and is surrounded by four N atoms in the equatorial plane, with the other N and Cl atoms occupying the axial positions. The crystal packing is stabilized by N-H?Cl hydrogen bonds, forming a layered arrangement parallel to (1-10).
Project description:The title compound, (C3H10N2)2[AlF6]F·3H2O, was obtained using the solvothermal method with aluminium hydroxide, HF and propane-1,3-di-amine as precursors in ethanol as solvent. The structure consists of isolated [AlF6](3-) octa-hedra, diprotonated propane-1,3-di-amine cations [(H2dap)(2+)], free fluoride ions and water mol-ecules of solvation. The Al-F bond lengths in the octa-hedral [AlF6](3-) anions range from 1.7690?(19) to 1.8130?(19)?Å, with an average value of 1.794?Å. Each [AlF6](3-) anion is surrounded by three water mol-ecules and by six diprotonated amine cations. The 'free' fluoride ion is hydrogen bonded to four H atoms belonging to four dications and has a distorted tetra-hedral geometry. The three water mol-ecules are connected by hydrogen bonds, forming trimers that connect the AlF6 octa-hedra and dications into a three-dimensional framework.
Project description:In the structure of the title compound, [Zn(C8H6NO4)2(C3H10N2)2], the Zn(II) atom is located on a center of symmetry with one independent Zn-O distance of 2.199?(2)?Å, and two Zn-N distances of 2.157?(2) and 2.144?(2)?Å. The overall coordination geometry around the Zn(II) atom is octa-hedral. Several types of hydrogen-bonding inter-actions are evident. Both intra-molecular [2.959?(3)?Å] and inter-molecular [3.118?(3) and 3.124?(3)?Å inter-actions occur between the O atoms of the acetate group and the amino N atoms, and weak inter-molecular C-H-O inter-actions involving the nitro groups, leading to an extended chain of the molecules aligned along the ac plane.
Project description:In the title compound, [Cu(ClO4)(C3H10N2)2(H2O)]ClO4, the Cu(II) atom has a distorted octa-hedral coordination sphere and is coordinated by the N atoms of two propane-1,3-di-amine ligands in the equatorial plane. The axial positions are occupied by a water O atom and an O atom of a disordered perchlorate anion [occupancy ratio 0.631?(9):0.369?(9)]. In the crystal, the various components are linked via O-H?O, N-H?O and C-H?O hydrogen bonds, forming sheets lying parallel to (001).
Project description:In the title compound, (C(11)H(18)N(4))[Ni(C(4)N(2)S(2))(2)], the asymmetric contains one half-complex, with the cation placed on a twofold axis and the anion located on an inversion center. The Ni(II) ion in the anion is coordinated by four S atoms of two maleonitrile-dithiol-ate ligands, and exhibits the expected square-planar coordination geometry.