In the mol-ecule of the title compound, [HgCl(2)(C(10)H(9)N(3))], the Hg(II) atom is four-coordinated in a distorted tetra-hedral configuration by two N atoms from the chelating di-2-pyridylamine ligand and by two Cl atoms. In the crystal structure, inter-molecular N-H⋯Cl hydrogen bonds link the mol-ecules into centrosymmetric dimers. There is a π-π contact between the pyridine rings [centroid-...

The crystal of the title compound, C(6)H(9)N(3)·C(7)H(6)O(2), contains tetra-meric hydrogen-bonded units comprising a central pair of 2-amino-pyrimidine mol-ecules linked across a centre of inversion by N-H⋯N hydrogen bonds and two pendant benzoic acid mol-ecules attached through N-H⋯O and O-H⋯N hydrogen bonds. These hydrogen-bonded units are arranged into layers in (002).

In the centrosymmetric dinuclear compound, [Co(2)Cl(4)(C(4)H(8)N(4))(2)], the Co(II) atom is coordinated by N atoms from two 3,5-dimethyl-1,2,4-triazol-4-amine ligands and two Cl atoms in a distorted tetra-hedral geometry. A six-membered ring is formed by four N atoms from two ligands and the two Co(II) centers; the Co⋯Co distance is 3.756 (9) Å.

In the title compound, [Hg(NCS)(2)(C(11)H(6)N(2)O)], the Hg(II) atom, lying on a twofold rotation axis, is four-coordinated in a distorted tetra-hedral geometry by an N,N'-bidentate diaza-fluoren-9-one ligand and two thio-cyanate anions. In the crystal, inter-molecular C-H⋯N and C-H⋯O hydrogen bonds are effective in the stabilization of the structure.

In the title compound, [Ge(C(9)H(11)O)(2)(C(6)H(16)N(2))], the Ge(II) atom is coordinated in a distorted trigonal-pyramidal geometry by two O atoms belonging to two 2,4,6-trimethyl-phenolate ligands and one N atom of a tetra-methyl-ethylenediamine ligand. Comparing the structure with published data of similar compounds shows that the Ge-O bonds are covalent and the Ge-N bond is coordinated.

In the title compound, C(24)H(15)NO(3)S, the dihedral angle between the phenyl ring and the carbozole system is 74.91 (6)°. The S atom exhibits a distorted tetra-hedral geometry [N-S-C = 104.85 (8)°; O-S-O = 119.59 (9)°]. The crystal structure is established by weak inter-molecular π-π inter-actions [centroid-centroid distances = 3.583 (2)-3.782 (2) Å].

In the title compound, [CoCl(2)(C(5)H(9)N(3))(2)], the Co(II) atom adopts a slightly distorted tetra-hedral coordination geometry provided by two chloride anions and two N atoms from the organic ligands. The dihedral angle between the pyrazole rings is 85.91 (10)°. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular N-H⋯N and N-H⋯Cl hydrogen-bondi...

In the title compound, [Zn(C(13)H(9)O(3))(2)(C(12)H(8)N(2))], the Zn(II) atom is located on a twofold rotation axis and has a distorted tetra-hedral coordination with two N atoms from the phenanthroline ligand arranged around the twofold axis and two O atoms from two symmetry-related 4'-hy-droxy-biphenyl-4-carboxyl-ate ligands. The mol-ecules are linked by O-H⋯O hydrogen bonds, forming a chain ...

In the title solvate, [Cu4(μ2-Cl)6(μ4-O)(C4H9NO)4]·2CH3OH, each Cu(2+) ion in the tetra-nuclear complex has a trigonal-bipyramidal coordination arising from three bridging chloride ions in equatorial positions and the central μ4-O(2-) ion and morpholine N atom in axial positions. The morpholine rings adopt chair conformations, with the N-Cu bonds in equatorial orientations. In the crystal, the ...

In the title compound, [CoCl(3)(C(6)H(13)N(2))], the tetra-hedrally coordinated Co(II) ion has Co-Cl distances ranging from 2.2220 (11) to 2.2449 (9) Å and a Co-N distance of 2.056 (2) Å. In the crystal, N-H⋯Cl hydrogen bonds link mol-ecules into chains in [010]. Weak C-H⋯Cl inter-actions stabilize further the crystal packing.