(5-Methyl-pyrazine-2-carboxyl-ato-κ(2) N (1),O)bis-[2-(4-methyl-pyridin-2-yl-κN)-3,5-bis-(tri-fluoro-meth-yl)phenyl-κC (1)]iridium(III) chloro-form hemisolvate.

In the title complex, [Ir(C14H8F6N)2(C6H5N2O2)]·0.5CHCl3, the Ir(III) atom adopts a distorted octa-hedral geometry, being coordinated by three N atoms (arranged meridionally), two C atoms and one O atom of three bidentate ligands. The complex mol-ecules pack with no specific inter-molecular inter-actions between them.

Different Zn(II) cation coordination geometries in di-μ-acetato-bis{2-chloro-6-[(pyridine-2-ylmethylimino)methyl]phenol}dizinc(II) chloroform monosolvate.

In the title compound, di-μ-acetato-κ(2)O:O;κ(2)O:O'-bis[(6-chloro-2-{(E)-[(pyridin-2-yl)methylimino]methyl}phenolato-κ(3)N,N',O)zinc(II)], [Zn2(C13H10ClN2O)2(C2H3O2)2]·CHCl3, the Zn(II) cation adopts a five-coordinate geometry and is coordinated by two N atoms and one O atom of a tridentate 6-chloro-2-{(E)-[(pyridin-2-yl)methylimino]methyl}phenolate ligand and two O atoms of two bridging acetate groups, but their coordination geometries differ. One Zn(II) cation adopts a distorted trigonal bipyramidal geometry and the other a square-pyramidal geometry. The two acetate ligands bridge two Zn(II) cations with mono- and bidentate coordination modes.

Bis[3,5-difluoro-2-(4-methyl-pyridin-2-yl)phenyl-κC,N](picolinato-κN,O)iridium(III) chloro-form monosolvate.

In the title complex, [Ir(C(12)H(8)F(2)N)(2)(C(6)H(4)NO(2))]·CHCl(3), two similar mol-ecules of each component comprise the asymmetric unit. The independent complex mol-ecules are linked by inter-molecular π-π inter-actions [centroid-centroid distance = 3.830 (4) Å].

Di-μ-chlorido-bis-{[2-(benzyl-imino-meth-yl)pyridine-κN,N']chloridomercury(II)} dichloridomercury(II).

The Hg(II) ion in the title centrosymmetric dinuclear complex, [Hg(2)Cl(4)(C(13)H(12)N(2))(2)]·[HgCl(2)], adopts a distorted square-pyramidal geometry, being coordinated by the bis-chelating N-heterocyclic ligand, two bridging Cl atoms and one terminal Cl atom. One of the bridging Hg-Cl bonds [2.8428 (11) Å] is significantly longer than the other [2.