A discrete neutral Cu(II) complex, [Cu(CF(3)SO(3))(2)(C(16)H(18)N(4))], has been derived from the symmetrical tetra-dentate Schiff base, N,N'-bis-[1-(pyridin-2-yl)ethyl-idene]ethane-1,2-diamine. The copper centre assumes a tetra-gonally distorted pseudo-octa-hedral geometry with the O atoms of two trifluoro-methane-sulfonate anions coordinated weakly in the axial positions. The Cu-N distances l...

The asymmetric unit of the title compound, [ZnCl(2)(C(11)H(17)N(3))], contains two independent penta-coordinate Zn(II) complex mol-ecules. In each mol-ecule, the metal atom is coordinated by an N,N',N''-tridenate Schiff base and two Cl atoms in a distorted square-pyramidal geometry. The two mol-ecules differ little in their geometry, but more in their inter-molecular inter-actions. In the cryst...

The mol-ecule of the title compound, [Mn(NCS)(2)(C(16)H(18)N(4))], has crystallographic twofold rotation symmetry, with the Mn(II) atom lying on the rotation axis. The Mn(II) atom is six-coordinated by four N atoms of the Schiff base ligand and by two N atoms of two thio-cyanate ligands, forming a distorted octa-hedral geometry.

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...

The title compound, C16H16N2S2, adopts a gauche (+)-gauche (+)-gauche (+) (g(+)g(+)g(+) ) conformation in the NH-CH2-CH2-NH bond sequence. In the crystal, mol-ecules are connected by pairs of N-H⋯S=C hydrogen bonds and C-H⋯π inter-actions, forming a tape structure along the c-axis direction.

In the title compound, C(14)H(16)N(2)O(4)S(2), the dihedral angle between the terminal phenyl rings is 77.07 (13)°. The geometries around the S atoms are distorted tetra-hedral, with O-S-O angles of 120.66 (12) and 119.44 (11)°. In the crystal, mol-ecules are stacked in columns along the a axis via inter-molecular N-H⋯O and C-H⋯O hydrogen bonds.