The crystal structure of dichloro-(acetonethiosemicarbazone)zinc(II)

Abstract

The crystal structure of dichloro(acetonethiosemicarbazone)zinc(II) has been determined from three dimensional X-ray diffraction data collected on a General Electric XRD-6 automatic diffractometer using Cu- Kα radiation and the stationary crystal-stationary counter technique. The monoclinic cell has dimensions of a=7.823(2) Å, c=8.691(2) Å, and β=100.32(2)°. The space group is P2 1/n and, with 4 molecules per unit cell, D c is 1.855 g/cm 3 and D m is 1.85 g/cm 3. The structure was determined by the heavy atom method and refined by full matrix least-squares techniques to a final R of 0.045 for the 1322 observed reflections used in the analysis. The zinc atom is in the center of a distorted tetrahedron with Zn-Cl distances of 2.203(2) and 2.252(2) Å. The Zn-S distance of 2.303(2) and the Zn-N distance of 2.116(4) Å complete the tetrahedron. The difference in the two Zn-Cl distance appears to result from hydrogen bonding to only one Cl atom.