In the crystal structure of the title compound, [Co(C(7)H(6)N(2))(2)(H(2)O)(4)]Cl(2), the Co(II) cation lies on an inversion center and is coordinated by two 2-amino-benzonitrile ligands and four water mol-ecules in a distorted octa-hedral geometry. The Cl(-) counter-anion links with the complex cations via O-H⋯Cl and N-H⋯Cl hydrogen bonding. Inter-molecular O-H⋯N hydrogen bonding links the com...

A redetermination of the crystal structure of the title compound, C(6)H(16)N(2) (2+)·2Cl(-), was undertaken. All atomic coordinates including those of the H atoms were refined freely. The cation is located on a centre of symmetry. Important for the crystal structure are wavy hydrogen-bonded layers that are formed by ammonium groups and chloride anions, giving hydrogen-bonded rings.

The asymmetric unit of the title compound, (C(8)H(10)NO(2))(4)[SnCl(6)]Cl(2), contains two (4-meth-oxy-carbon-yl)anilinium cations, one chloride anion and one half of a hexa-chlorido-stannate(IV) dianion situated on a twofold rotation axis. All aminium H atoms are involved in N-H⋯Cl hydrogen bonding, which consolidate the crystal packing along with weak C-H⋯O inter-actions.

In the title compound, C(3)H(12)N(2) (2+)·2Cl(-), the cations are disordered over two well resolved positions in a 0.525 (13):0.475 (13) ratio. The disorder involves two C atoms which assume positions that make an almost mirror-sym-metrical system. Similar disorder is observed both at room temperature and at 120 (1) K. The conformation of the NCCN chain in both components is close to trans (the...

The asymmetric unit of the title compound, (C(6)H(7)ClN)(4)[SnCl(6)]Cl(2), comprises two 4-chloro-anilinium cations, half of an [SnCl(6)](2-) anion and a Cl(-) anion. The Sn(IV) atom, located on a special position on a twofold rotation axis, exhibits an octa-hedral environment. In the crystal, mol-ecules are linked by N-H⋯Cl hydrogen bonds between the 4-chloro-anilinium cations, [SnCl(6)](2-) a...

The organic cation in the title compound, C(24)H(32)N(4) (2+)·2Cl(-)·3H(2)O, is situated on an inversion centre. The cations, anions and water mol-ecules are linked via N-H⋯O, N-H⋯Cl, O-H⋯O and O-H⋯Cl hydrogen bonds and C-H⋯π interactions, forming a three-dimensional framework.

The crystal structure of the title compound, C(6)H(10)N(2) (2+)·2Cl(-), has been reported previously in the non-standard setting P2(1)/a [Genet (1965 ▶). Bull. Soc. Fr. Miner. Crist.88, 463-470], with an R value of 0.16. The current redetermination improves significantly the precision of the geometric parameters. In the crystal packing, cations and anions are linked by inter-molecular N-H⋯Cl an...

In the title compound, C(18)H(24)N(2) (2+)·2Cl(-)·H(2)O, both the cation and the water mol-ecule lie on a twofold crystallographic axis. In the cation, the two benzene rings are perpendicular to each other, making a symmetry-constrained dihedral angle of 90°. In the crystal, N-H⋯Cl, O-H⋯Cl and N-H⋯O hydrogen bonds result in the formation of a three-dimensional network.

in this paper, 4,4ʹ-bipyridinium dichloride  supported sba-15 (sba@bipy2+ 2cl-) was used for the synthesis of dihydropyrimidinones. the synthesized catalyst was characterized by ft-ir spectroscopy, scanning electron microscopy (sem), transmission electron microscopy (tem) and thermogravimetric analysis (tga). this nanocomposite was shown to be an efficient heterogeneous catalyst for the synthes...

The title compound, [PdCl(2)(C(8)H(11)O(2)P)(2)], has a comparable structure to those of related palladium dichloride complexes containing trimethyl phosphinite and methyl diphenyl phosphinite. The Pd atom is located on a crystallographic twofold rotation axis: thus, there is just one half-mol-ecule in the asymmetric unit. The structure is isomorphous with the platinum analogue cis-[PtCl(2){P(O...