Abstract
The reaction of the N-phenyl-2-(1,2,3,4-tetrahydronaphthalen-1-yl-idene)hy-dra-zine-car-bo-thio-amide ligand with zinc acetate dihydrate in a 2:1 molar ratio yielded a yellow solid, which was crystallized from DMSO to obtain the title compound, [Zn(C17H16N3S)2]·C2H6OS. The Zn(II) ion is four-coordinated in a distorted tetra-hedral environment by two deprotonated ligands. Each ligand acts as an N,S-donor, forming a five-membered metallacycle. The maximum deviation from the mean plane of the N-N-C-S chelate group is 0.0029 (14) Å for the N-donor atom of one ligand and 0.0044 (14) Å for the non-coordinating N atom of the second. The dihedral angle between the planes of the two chelate groups is 72.80 (07)°. Bond lengths in the ligands are compared with those in the crystal structure of the free ligand. In the crystal, complex mol-ecules are connected by dimethyl sulfoxide solvate mol-ecules via N-H⋯O hydrogen-bonding inter-actions, building a one-dimensional hydrogen-bonded polymer along the a-axis direction. The S atom and one C atom of the dimethyl sulfoxide solvate mol-ecules are disordered over two sets of sites with an occupancy ratio of 0.6:0.4.
Highlights
The reaction of the N-phenyl-2-(1,2,3,4-tetrahydronaphthalen-1-ylidene)hydrazinecarbothioamide ligand with zinc acetate dihydrate in a 2:1 molar ratio yielded a yellow solid, which was crystallized from DMSO to obtain the title compound, [Zn(C17H16N3S)2]C2H6OS
The ZnII ion is four-coordinated in a distorted tetrahedral environment by two deprotonated ligands
Complex molecules are connected by dimethyl sulfoxide solvate molecules via N—H O hydrogenbonding interactions, building a one-dimensional hydrogen-bonded polymer along the a-axis direction
Summary
In a continuation of our on-going research on the supramolecular chemistry of thiosemicarbazone derivatives and their complexes, we report the synthesis and crystal structure of a ZnII complex with the N-phenyl-2-(1,2,3,4tetrahydronaphthalen-1-ylidene)hydrazinecarbothioamidate ligand. Thiosemicarbazone derivatives are N,S-donors with a wide range of coordination modes and a variety of applications in biological inorganic chemistry (Lobana et al 2009; Ferraz et al 2012). The molecular structure of the title compound with atom labeling and displacement ellipsoids drawn at the 30% probability level. Disorder is shown with open and full bonds
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