Synthesis, Characterization, and Crystal Structure of a Diorganotin(IV) Complex with 2-Oxo-2-Phenylacetic Acid 4-Hydroxybenzohydrazone.

The complex dibutyltin 2-oxo-2-phenylacetic acid 4-hydroxybenzohydrazone has been synthesized and characterized by elemental analysis, IR, (1)H and (13)C NMR, and X-ray single-crystal diffraction studies. The crystal structure belongs to triclinic, space group P-1 with a = 9.3220 (10) Å, b = 9.8779 (11) Å, c = 15.9401 (17) Å, β = 97.0930 (10)°, Z = 2, V = 1427.6(3) Å(3), Dc = 1.413 mg/cm(3), μ = 0.936 mm(-1), F(000) = 628, R = 0.1158, and wR = 0.2522. X-ray analysis indicates that O(2), N(2), O(4), and O(4)#1 from the ligand and O(5) from ethanol molecule are in the equatorial positions; the axial positions are occupied by two n-butyl groups. It shows a distorted pentagonal bipyramid configuration with seven-coordination for central tin atom. Fascinatingly, the supramolecular infrastructures are observed, which exist as two-dimensional sheets assembled from the organometallic subunits through intermolecular and intramolecular O-H⋯X or C-H⋯X (X = O or N) hydrogen bonds.