Kaibei Yu

Synthesis and Structure of bis(Dibutyldithiocarbamate)zinc(II): Zn2((n-Bu)2NCSS)4

The binuclear zinc (II) complex Zn2[(n-Bu)2NCSS]4 has been prepared, and its crystal and molecular structure have been determined by x-ray diffraction. The crystal is monoclinic, space group C2/c, with a=23.329(3)Å, b=17.090(2)Å, c=16.115(2)Å, α =90°, β=127.560(10)°, γ=90°, z=4, V=5039.1(11)Å3, F(000)=2016, R=0.0450, and Rw=0.1192. The crystal structure shows that two S-N-S atom chains, belonging to the different dibutyldithiocarbamate ligands, bridge two zinc (II) ions. Each zinc (II) ion coordinates to four S atoms. The coordination geometry around the zinc (II) is a tetrahedron, however, the coordination sphere of two zinc ions in the dimer is best described as a distorted octagon. The X-ray photoelectron spectra, IR and UV data have been used to study the structure and spectra properties of the complex.

Aqua{2-[(E)-(3,5-di­bromo-2-oxido­phenyl)­methyl­ene­amino]­ethanesulfonato-κ3O,N,O′}(1,10-phenanthroline-κ2N,N′)­nickel(II) ethanol solvate

The title compound, [Ni(C9H9Br2NO4S)(C8H8N2)(H2O)]·C2H5OH, was synthesized in a water–ethanol solution. In the structure, the Ni atom is six-coordinated by three ligands to form the neutral complex, in which the Ni atom has a distorted octahedral coordination geometry. Molecules form dimers through O—H⋯O hydrogen bonds.

Di-mu-hydroxo-bis[aqua(1,10-phen-anthroline-kappa2N,N')copper(II)] trans-bis(2-([(E)-5-formyl-2-oxido-kappaO-benzylidene]amino-kappaN)ethanesulfonato(2-))copper(II) hexahydrate.

The title compound, [Cu2(OH)2(C12H8N2)2(H2O)2][Cu(C10H9NO5S)2]·6H2O, is comprised of a copper-centred complex cation and a copper-centred complex anion; the cation lies about an inversion centre and in the anion the Cu atom lies on an inversion centre. In the doubly charged bridged dicopper cation, each Cu centre has distorted square-pyramidal geometry. In the square-planar dianion, two sulfonate ligands are trans coordinated to the Cu atom via a deprotonated hydroxyl O atom and an imine N atom, forming two six-membered chelate rings. The structure is stabilized by an extensive hydrogen-bond system and aromatic-ring stacking interactions.

2,2'-(1,2-Ethanediyldithio)bis(1,3-benzothiazole).

In the title compound, C(16)H(12)N(2)S(4), which is the result of the S-alkylation reaction of 2-mercaptobenzothiazole with ethylene dibromide, the planes of the two benzothiazole moieties form a dihedral angle of 3.84 (14) degrees. The bridging chain moiety, -SCH(2)CH(2)S-, adopts an antiperiplanar conformation. There are intermolecular S.S non-bonded contacts of 3.6471 (9) A, which stabilize the crystal packing.

(Z)-4-(4-{4-[(Z)-1-Methyl-3-oxobut-1-enyl­amino]­phenoxy}phenyl­amino)­pent-3-en-2-one

In the structure of the title compound, C22H24N2O3, short intermolecular C—H⋯O contacts influence the crystal packing and molecular ladders are formed. Intramolecular N—H⋯O hydrogen bonds make the Z configuration stable by formation of six-membered rings.