Crystal structure of S-hexyl (E)-3-(2-hy-droxy-benzyl-idene)di-thio-carbazate.

The title compound, C14H20N2OS2 [systematic name: S-hexyl (E)-2-(2-hy-droxy-benzyl-idene)hydrazine-1-carbodi-thio-ate], crystallizes with four independent mol-ecules (A-D) in the asymmetric unit. All four mol-ecules adopt an E conformation with respect to the C=N bond of the benzyl-idene moiety and have an intra-molecular O-H⋯N hydrogen bond generating an S(6) ring motif. In the crystal, the A and D mol-ecules are connected by a pair N-H⋯S hydrogen bonds, forming a dimer with an R 2 (2)(8) ring motif. In the case of mol-ecules B and C, they are linked to themselves by pairs of N-H⋯S hydrogen bonds, forming B-B and C-C inversion dimers with R 2 (2)(8) ring motifs.

Crystal structure of bis-[S-hexyl 3-(4-methyl-benzyl-idene)di-thio-carbazato-κ(2) N (3),S]nickel(II).

In the title complex, [Ni(C15H21N2S2)2], the Ni(II) atom exhibits a square-planar coordination geometry and is located on an inversion centre leading to a trans configuration of the N,S-chelating ligands. In the crystal, the complex mol-ecules stack at a distance of 4.6738 (3) Šalong the a axis, which exclude any significant inter-actions between the aromatic rings.

Crystal structure of S-hexyl (E)-3-(4-methyl-benzyl-idene)di-thio-carbazate.

In the title compound, C15H22N2S2, the di-thio-carbazate group adopts an E conformation with respect to the C=N bond of the benzyl-idene moiety. In the crystal, mol-ecules are linked by pairs of N-H⋯S hydrogen bonds, forming inversion dimers with an R (2) 2(8) ring motif. The dimers are linked via C-H⋯π inter-actions, forming chains propagating along [100].

Crystal structure of S-hexyl (E)-3-(4-methoxy-benzyl-idene)di-thio-carbazate.

In the title compound, C15H22N2OS2, the di-thio-carbazate group adopts an EE conformation with respect to the C=N bond of the benzyl-idene moiety. The hexyl side chain adopts an extended conformation and the C-S-C-C torsion angle is -93.36 (13)°. In the crystal, inversion dimers linked by pairs of N-H⋯S hydrogen bonds generate R 2 (2)(8) loops.

Crystal structure of bis-[µ-S-hexyl 3-(2-oxido-benzyl-idene)di-thio-carbazato-κ(4) O,N (3),S:O]dicopper(II).

The title compound, [Cu2(C14H18N2OS2)2], is a binuclear copper(II) complex of an oxybenzyl-idenedi-thio-carbazate ligand. The ligand coordinates in a tridentate manner through N-, S- and O-donor atoms. Each O atom also bridges to a second Cu(II) ion to form the binuclear species. It has a central Cu2O2 rhomboid moiety and a metal-to-metal separation of 2.9923 (6) Å. In the crystal, the binuclear complexes stack along the a axis with all the hexyl chains located side-by-side, forming a hydro-phobic region. The complexes are linked via C-H⋯N hydrogen bonds, forming chains along the c-axis direction. One Cu(II) atom has the S atom of a symmetry-related complex located approximately in the apical position at 2.9740 (11) Å. This weak inter-action links the chains to form slabs parallel to the ac plane.

Bis[S-benzyl-3-(4-n-octyloxybenzylidene)dithiocarbazato-κ(2)N(3),S']palladium(II).

In the title compound, [Pd(C(23)H(29)N(2)OS(2))(2)], the Pd(II) atom displays the expected square-planar coordination geometry. However, the trans configuration, which allows the Pd(II) atom to be located on a crystallographic inversion centre, is unusual with respect to the cis arrangement found in analogous Pd complexes comprising similar N,S-chelating ligands.