Crystal structure of bis[S-hexyl 3-(4-methylbenzylidene)dithiocarbazato-κ²N³,S]nickel(II)

Abstract

In the title complex, [Ni(C15H21N2S2)2], the NiII 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 mol­ecules stack at a distance of 4.6738 (3) Å along the a axis, which exclude any significant inter­actions between the aromatic rings.

Crystal structure of bis[S-hexyl 3-(4-methylbenzylidene)dithiocarbazato-κ2N3,S]palladium(II)

“…1). However, the donor atoms are not coplanar as observed for the corresponding nickel derivative (Howlader et al, 2015b), but the square planar geometry presents a slight tetrahedral distortion with displacement of atoms N1 and S1 of ± 0.121 (14) and 0.134 (6) Å, respectively, from the coordination mean plane. The Pd1-S1 and Pd1-N1 coordination bond distances are of 2.264 4and 2.154 (12) Å, respectively, with an N1-Pd1-S1 chelating angle of 83.2 (3)°.…”

Crystal structure of bis[μ-S-hexyl 3-(2-oxidobenzylidene)dithiocarbazato-κ4O,N3,S:O]dicopper(II)

“…The presence of an oxobenzylidene moiety is expected to induce the ligand to coordinate to the metal through the N,S,O donors. Continuing our studies on S-containing Schiff bases (Howlader et al, 2015;Begum et al, 2015), we report herein on the crystal structure of an unexpected binuclear copper(II) complex of the ligand S-hexyl-β-N-(2-hydroxybenzylidene)dithiocarbazate.…”

“…For details of the bioactivities of metal complexes of bidentate Schiff bases of S-methyl or S-benzyl dithiocarbazate ligands, see: Chan et al (2008); How et al (2008); Ali et al (2002); Chew et al (2004). For square-planar metal complexes of dithiocarbazate ligands coordinating in a bidentate manner, see: Tarafder et al (2008); Howlader et al (2015); Begum et al (2015). metal complexes reported so far dithiocarbazato ligands coordinate in a bidentate manner through the N,S donors leading to bischelated species with a trans (Howlader et al, 2015) or cis (Begum et al, 2015) configuration.…”

“…For square-planar metal complexes of dithiocarbazate ligands coordinating in a bidentate manner, see: Tarafder et al (2008); Howlader et al (2015); Begum et al (2015). metal complexes reported so far dithiocarbazato ligands coordinate in a bidentate manner through the N,S donors leading to bischelated species with a trans (Howlader et al, 2015) or cis (Begum et al, 2015) configuration. The presence of an oxobenzylidene moiety is expected to induce the ligand to coordinate to the metal through the N,S,O donors.…”

Crystal structure of bis{S-hexyl 3-[4-(dimethylamino)benzylidene]dithiocarbazato-κ2N3,S}copper(II)

“…Bidentate Schiff bases of S-methyl or S-benzyl dithiocarbazates and their metal complexes have received considerable attention for their possible bioactivities (Chan et al, 2008;How et al, 2008;Ali et al, 2002;Chew et al, 2004;Crouse et al, 2004). As part of our ongoing structural studies on these S-containing Schiff bases (Howlader et al, 2015;Begum et al, 2015), we report herein the structure of a copper(II) complex with the (dimethylaminobenzylidene)dithiocarbazate ligand.…”