(5-Methyl­pyrazine-2-carboxyl­ato-κ²N¹,O)bis­[2-(4-methyl­pyridin-2-yl-κN)-3,5-bis­(tri­fluoro­meth­yl)phenyl-κC¹]iridium(III) chloro­form hemisolvate

In the title complex, [Ir(C₁₄H₈F₆N)₂(C₆H₅N₂O₂)]·0.5CHCl₃, the Ir^III atom adopts a distorted octa­hedral geometry, being coordinated by three N atoms (arranged meridionally), two C atoms and one O atom of three bidentate ligands. The complex mol­ecules pack with no specific inter­molecular inter­actions between them. The SQUEEZE procedure in PLATON [Spek (2009). Acta Cryst. D65, 148–155] was used to model a disordered chloro­form solvent mol­ecule; the calculated unit-cell data allow for the presence of half of this mol­ecule in the asymmetric unit.

Crystal structure of chlorido­penta­kis(dimethyl sulfoxide-κO)chromium(III) dichloride

In the complex cation of the title salt, [CrCl(C₂H₆OS)₅]Cl₂, the Cr^III ion is coordinated by one chloride ligand and five O atoms from dimethyl sulfoxide (DMSO) ligands, leading to a slightly distorted octa­hedral coordination environment [O—Cr—O angles range from 86.69 (16) to 92.87 (16)°]. In the crystal, complex cations are arranged in hexa­gonally packed rows parallel to [010], with the chloride counter-anions situated in between. The inter­actions between cations and anions are mainly ionic in nature.

Crystal structure of a monoclinic polymorph of 5-amino-1,3,4-thia­diazol-2(3H)-one

The title compound, C₂H₃N₃OS, is a monoclinic (P2₁/c) polymorph of the previously reported triclinic structure [Kang et al. (2012). Acta Cryst. E68, o1198]. The asymmetric unit contains two independent mol­ecules which are essentially planar, with r.m.s. deviations of 0.001 and 0.032 Å from the mean plane defined by the seven non-H atoms. In the crystal, N—H...N and N—H...O hydrogen bonds link the mol­ecules into a sheet parallel to (111).

Crystal structure of phen­yl(pyridin-2-yl)methanol

In the title compound, C₁₂H₁₁NO, the pyridine and phenyl rings are inclined to each other by 71.42 (10)°. In the crystal, O—H...N hydrogen bonds link the mol­ecules into helical chains extending along the c-axis direction.

Crystal structure of 2,6-bis­[(1H-pyrazol-1-yl)meth­yl]pyridine

In the title compound, C₁₃H₁₃N₅, the planes of the pyrazolyl groups are nearly perpendicular to that of the central pyridine ring, making dihedral angles of 87.77 (8) and 85.73 (7)°. In the crystal, weak C—H...N hydrogen bonds link the mol­ecules into layers extending parallel to (10-1).