title: An unprecedented binuclear cadmium di-thio-carbamate adduct: bis-[μ2-N-(2-hydroxy-eth-yl)-N-iso-propyl-carbamodi-thio-ato-κ3S:S,S']bis-{[N-(2-hydroxy-eth-yl)-N-iso-propyl-carbamodi-thio-ato-κ2S,S'](3-{(1E)-[(E)-2-(pyridin-3-yl-methyl-idene)hydrazin-1-yl-idene]meth-yl}pyridine-κN)cadmium]} dihydrate.
abstract: The asymmetric unit in the title binuclear compound, [Cd(C6H12NOS2)2(C12H10N4)]2·2H2O, comprises a CdIIatom, two di-thio-carbamate (dtc) anions, a monodentate 3-pyridine-aldazine ligand and a lattice water mol-ecule. The binuclear mol-ecule is constructed by the application of inversion symmetry. One dtc ligand simultaneously chelates one cadmium atom and bridges the centrosymmetric mate, while the other dtc ligand is chelating only. This leads to a centrosymmetric [Cd(dtc)2]2core to which are appended two 3-pyridine-aldazine ligands. The resulting NS5donor set is based on an octa-hedron. The three-dimensional mol-ecular packing is sustained by hydroxyl-O-H(hydrox-yl) and water-O-H⋯O(hydrox-yl) hydrogen bonding, leading to supra-molecular layers parallel to (101) which are connected by water-O-H⋯N(pyrid-yl) hydrogen bonding; additional C-H⋯O, S π(chelate ring) inter-actions are also evident. The retention of the central [Cd(dtc)2]2core upon adduct formation is unprecedented in the structural chemistry of the zinc-triad di-thio-carbamates.
authors.affiliation: Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA.
authors.forename: Hadi D
authors.initials: HD
authors.lastname: Arman
authors.affiliation: Chemical Abstracts Service, 2540 Olentangy River Rd, Columbus, Ohio, 43202, USA.
authors.forename: Pavel
authors.initials: P
authors.lastname: Poplaukhin
authors.affiliation: Centre for Crystalline Materials, Faculty of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink
keywords: cadmium; crystal structure; di­thio­carbamate; hydrogen bonding