Characterization and crystal structure of tris(N′-ethyl-N-piperazinyl-carbodithioato-s,s′)cobalt(III) complex:: CO(S2CNC4H8NC2H5)3•3H2

The title compound has been prepared and characterized by elemental analyses, infrared and NMR spectra, and thermal analyses. The crystal and molecular structure of tris(N'-ethyl-N-piperazinly-carbodithioato-s,s')cobalt(III) complex, Co(S2CNC4H8NC2H5)(3)center dot 3H(2)O, was determined by X-ray diffraction methods. The compound crystallizes in trigonal system, space group R-3, with lattice parameters a= 1.37700(19) nm, b= 1.37700(19) nm, c=3.0090(6) nm, y=120 degrees, M-r=680.98, V=4.9411(14) nm(3), Z=6, D,=1.373 g/cm(3), F(000)=2160, R=0.0510 and wR= 0.1436. In the structure, central Co atom coordination geometry is slightly distorted octahedron with the six S atoms from the three bidentate S2CNC4H8NC2H5 ligands. The octahedron is distorted resulting from forced configuration of the four-membered chelate ring. The six Co-S bond distances are in the range of 0.22682(13)-0.22703(14) run. The IR and NMR spectral data are in agreement with the structural data. The thermal analytical data indicate that it decomposed completely at the temperature of 799.97 degrees C, leaving CoS.