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

Abstract

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 , D c = 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.