In the title compound, [Cu(C(11)H(11)NO(4))(H(2)O)]·H(2)O, each Cu(II) ion is four-coordinated by one N and two O atoms from the tridentate Schiff base ligand, and by one O atom from the coordinated water mol-ecule in a distorted square-planar geometry. Inter-molecular O-H⋯O hydrogen bonds link complex mol-ecules and solvent water mol-ecules into flattened columns propagated in [100].

In the title compound, [Sn(C(6)H(5))(2)(C(18)H(12)N(2)O(3))], the Sn(IV) atom has a distorted trigonal-bipyramidal geometry. The Schiff base mol-ecule is coordinated to the Sn(IV) atom in a tridentate fashion via the azomethine N atom, the hydr-oxy O atom and the carbonyl O atom. The complex involves an intra-molecular O-H⋯N hydrogen bond.

The asymmetric unit of the title compound, [MnCl(2)(C(11)H(17)N(3))], contains two crystallographically independent mol-ecules with slightly different geometries. In each mol-ecule, the Mn(II) ion is five coordinated by the N,N',N''-tridentate Schiff base and two Cl atoms in a distorted square-pyramidal geometry. In the crystal, C-H⋯Cl hydrogen bonds link adjacent mol-ecules into a three-dimens...

In the mol-ecule of the title compound, [Sn(C(2)H(5))(2)(C(9)H(8)N(2)O(3))], the Sn atom is five-coordinated in a distorted trigonal-bipyramidal configuration by two O and one N atoms of the tridentate Schiff base ligand in the equatorial plane, and by two C atoms of ethyl groups in the axial positions. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into cent...

The Cu atom of the title complex, [Cu(C(13)H(19)N(2)O(2))(C(10)H(8)N(2))]ClO(4), has a distorted square-pyramidal geometry with all three of the donor atoms from the N,N',O-tridentate Schiff base ligand in the equatorial positions and the bipyridine N atoms in an equatorial-axial binding mode. The Cu atom is 0.1801 (11) Å above the N(3)O mean basal plane.

In each of the two independent mol-ecules in the asymmetric unit of the title compound, [Cu(C(13)H(15)NO(3))(C(3)H(4)N(2))], the Cu(II) atom is four-coordinated by two O atoms and the N atom of the tridentate Schiff base ligand and one N atom from the imidazole ligand in a distorted square-planar geometry. In the crystal structure, mol-ecules are linked by inter-molecular N-H⋯O hydrogen bonds.

In the title compound, [CdCl(2)(C(13)H(19)N(3)O)], the Cd(II) ion is five-coordinate, with the N,N',N''-tridentate Schiff base ligand 2-morpholino-N-[1-(2-pyrid-yl)ethyl-idene]ethanamine and two Cl atoms in a distorted square-pyramidal geometry. In the crystal structure, C-H⋯Cl hydrogen-bonding inter-actions connect the mol-ecules into a three-dimensional network.

The complete mol-ecule of the title mononuclear zinc(II) complex, [Zn(NCS)(2)(C(13)H(13)N(3))], is generated by crystallographic twofold symmetry, with the metal atom lying on the rotation axis. The pendant methyl group of the ligand is statistically disordered over two sites. The Zn(2+) cation is coordinated by the N,N',N''-tridentate Schiff base ligand, and by two thio-cyanate N atoms, formin...

The Cd(II) ion in the title compound, [CdBr(2)(C(13)H(19)N(3)O)], is five-coordinated by the N,N',N''-tridentate Schiff base ligand and two Br atoms in a distorted square-pyramidal geometry. In the crystal, inter-molecular C-H⋯O and C-H⋯Br hydrogen bonds link adjacent mol-ecules into layers parallel to the ab plane. An intra-molecular C-H⋯Br inter-action is also observed.