Synthesis and crystal structure of dinuclear zinc(II) complex with 3-Me-N-oxopyridine-2-thiol

The complex Zn(Mept)(2)(Mept = Bis( 3-methyl-oxopyridine-2-thionato)) was o btained 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 c oordinates to a zinc atom forming (3-Me-oxopyridine'-thionato)zinc II) mono mer, and every two monomeric units are linked centrosymmetrically by two ox ygen bridges. The compound Zn(Mept)2 belongs to the monoclinic system with space group P2(1)/c, a = 7.7627(9), b = 10.3335(7), c = 17.4528(13) Angstro m, beta = 99.134(9)degrees, V = 1382.2(2) Angstrom (3), Z = 2, M-r = 691.46 , D-c = 1.661 g/cm(3), mu = 2. 076 mm(-1), F(000) = 704, R = 0.0163, R-w = 0.0747 for 3375 reflections with I >2 sigma (I). The coordination geometry about each Zn(II) ion is a distorted trigonal bipyramid. The Zn atom is coo rdinated by two sulfur atoms (zn(1) - S(1) 2.307(1); Zn(1) - S(2) 2.295(2) Angstrom) and one oxygen atom (Zn - O(2A) 2.126 (3) Angstrom) in the equato rial plane, while the two oxygen atoms of Mept ligands (Zn(1) - O(1) 2.050( 3), Zn(1)- O(2) 2.172(3) Angstrom) occupy the axial positions with O(1) 1 Z n(1) - O(2) 177.2(1)degrees.