In the title compound, C(10)H(26)N(4) (2+)·2Cl(-)·0.5H(2)O, the cyclam (1,4,8,11-tetra-azacyclo-tetra-decane) dication adopts an endodentate conformation which my be inflenced by intra-molecular N-H⋯N hydrogen bonding. In the crystal structure, the components are linked by N-H⋯Cl and O-H⋯Cl hydrogen bonds into chains along [100]. The water molecule is disordered over two sites in a 50:50 ratio.

In the article, in order to evaluate effect of various factors on oxidation process n-butane, a series experiments were conducted at temperature 170 ℃ for 58 hours with mixing reactants reactor speed 0.05 m amplitude 2s-1. Infrared spectroscopy, transmission electron microscopy, and powder X-ray diffraction data reported. According infrared when ratio tetra-Npropylammonium hydroxide/tetraethoxy...

The asymmetric unit of the title compound, (C(5)H(14)N(2))[ZnCl(4)], consists of a diprotonated 2-methyl-piperazine cation and a tetra-chloridozincate anion. The Zn(II) ion is in a slightly distorted tetra-hedral coordination environment. The six-membered piperazine ring adopts a chair conformation. The crystal structure is stabilized by inter-molecular N-H⋯Cl hydrogen bonds.

In the title compound, C(19)H(22)N(4)O(2), the tetra-hydro-pyrimidine ring adopts an envelope conformation (with the N atom connected to the benzyl group representing the flap). This benzyl group occupies a quasi-axial position. The two benzyl groups lie over the tetra-hydro-pyridimidine ring. The amino group is a hydrogen-bond donor to the nitro group.

In the title compound, C(9)H(7)N(5)·H(2)O, the inter-planar angles between the benzene and tetra-zole rings and between the benzene and imidazole rings are 8.71 (3) and 1.32 (2)°, respectively. In the crystal, strong N-H⋯N hydrogen bonds link the organic 5-(1H-tetra-zol-5-yl)-1H-indole mol-ecules into chains extended along the b axis. The chains are further inter-connected into layers parallel ...

In the two anions of the title salt, C(2)H(10)N(2) (2+)·2C(8)H(5)N(8) (-)·2H(2)O, the central aromatic rings make dihedral angles of 13.53 (6) and 6.53 (7)° with the deprotonated tetra-zole rings, and 11.39 (6) and 10.41 (9)° with the other tetra-zole groups. In the crystal, the cations, anions and water mol-ecules are linked by an extensive O-H⋯N, N-H⋯O and N-H⋯N hydrogen-bond network into two...

In the title compound, [Zn(C(4)H(6)N(2))(4)](BF(4))(2), the Zn(II) ion is in a slightly distorted tetra-hedral coordination geometry, with Zn-N distances in the range 1.980 (2)-1.991 (2) Å. The tetra-hedral angles are in the range 104.93 (9)-118.81 (9)°.

In the title compound, [CdBr(2)(C(5)H(12)N(2)S)(2)], the Cd(II) atom lies on a twofold rotation axis. It exhibits a distorted tetra-hedral coordination environment defined by two S atoms of two tetra-methyl-thio-urea (tmtu) ligands and two bromide ions. The crystal structure is consolidated by C-H⋯N and C-H⋯S hydrogen bonds.