Co[(C6H11O)2PS2]2·2Py的合成和晶体结构

Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.