(2,2'-Bipyridine-κN,N')dibromido(dimethyl sulfoxide-κO)zinc(II).

In the mol-ecule of the title compound, [ZnBr(2)(C(10)H(8)N(2))(C(2)H(6)OS)], the Zn(II) atom is five-coordinated in a distorted trigonal-bipyramidal configuration by two N atoms from one 2,2'-bipyridine, one O atom from one dimethyl-sulfoxide molecule and two Br atoms. Inter-molecular π-π stacking between parallel pyridine rings [face-to-face distance 3.32 (4) Å] and C-H⋯Br and C-H⋯O hydrogen-bonding interactions are present in the crystal structure.

Bis[(2-amino-phen-yl)methanol-κO,N]bis-(nitrato-κO)manganese(II).

In the title compound, [Mn(NO(3))(2)(C(7)H(9)NO)(2)], the Mn(II) atom (site symmetry 2) is coordinated by two N,O-bidentate (2-amino-phen-yl)methanol ligands and two monodentate nitrate anions in a distorted cis-MnN(2)O(4) octa-hedral coordination geometry. In the crystal, N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds help to establish the packing.

Bis[(2-amino-phen-yl)methanol-κN,O]bis-(nitrato-κO)zinc(II).

In the title compound, [Zn(NO(3))(2)(C(7)H(9)NO)(2)], the Zn(II) atom, lying on a twofold rotation axis, is six-coordinated in a distorted octa-hedral geometry by two N atoms and two O atoms from two (2-amino-phen-yl)methanol ligands and two O atoms from two monodentate nitrate anions. Inter-molecular N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds stabilize the crystal structure.

Bis[(2-amino-phen-yl)methanol-κN,O]bis-(nitrato-κO)cobalt(II).

The asymmetric unit of the title compound, [Co(NO(3))(2)(C(7)H(9)NO)(2)], contains one-half of the mol-ecule. The Co(II) atom (site symmetry 2) is six-coordinate in a distorted octahedral configuration bonded by two N and two O atoms from two (2-amino-phen-yl)methanol ligands and two O atoms from the two nitrate anions. Crystal packing is stabilized by inter-molecular N-H⋯O, O-H⋯O and C-H⋯O hydrogen-bonding inter-actions.

Di-µ-iodido-bis{[hydroxy(methoxy)bis(2-pyridyl)methane-κN,O,N']iodidocadmium(II)}.

In the centrosymmetric dinuclear title compound, [Cd(2)I(4)(C(12)H(12)N(2)O(2))(2)], two µ-I atoms bridge two Cd(II) atoms and each Cd(II) atom is also bonded to a terminal I atom and a hy-droxy-meth-oxy-bis-(2-pyrid-yl)methane ligand, which functions in an N,O,N'-tridentate mode, resulting in a distorted octa-hedral coordination environment. Inter-molecular O-H⋯I hydrogen bonds and π-π stacking inter-actions between the pyridine rings [centroid-centroid distance = 3.790 (2) Å] are present in the crystal structure.