CAJ | 학술논문

The complex Zn(Mept)2 (Mept=Bis(3-methyl-oxopyridine-2-thionato))was obtained by the reaction of MeHpt with ZnSO4 in ethanol. A single crystal X-ray study shows that the complex bis(3-Me-oxopyridine-2-thionato)zinc(II) (Zn2C24H24N4O4S4) is a dimer. The oxygen and sulfur atoms from Mept ligand coordinates to a zinc atom forming (3-Me-oxopyridine-2-thionato)zinc(II) monomer, and every two monomeric units are linked centrosymmetrically by two oxygen bridges. The compound Zn(Mept)2 belongs to the monoclinic system with space group P21/c, a=7.7627(9), b = 10.3335(7), c=17.4528(13) Å, β=99.134(9)°, V=1382.2(2)Å3, Z=2, Mr=691.46, Dc=1.661 g/cm3, μ=2.076 mm-1, F(000)=704, R=0.0463, Rw=0.0747 for 3378 reflections with I>2σ(I). The coordination geometry about each Zn(II) ion is a distorted trigonal bipyramid. The Zn atom is coordinated by two sulfur atoms (Zn(1)-S(1) 2.307(1); Zn(1)-S(2) 2.295(2)Å) and one oxygen atom (Zn-O(2A) 2.126(3)Å) in the equatorial plane, while the two oxygen atoms of Mept ligands (Zn(1)-O(1) 2.050(3), Zn(1)-O(2) 2.172(3)Å) occupy the axial positions with O(1)-Zn(1)-O(2) 177.2(1)°.