Synthesis, Characterization and Antimicrobial Screening of Organotin (IV) complexes derived from Schiff bases of Pyrazine-2-carboxylic acid hydrazide

Aim of work is the synthesis and characterization of biologically potent Schiff bases and their organotin (IV) complexes derived from substituted o-vanillin and pyrazine-2-carboxylic acid hydrazide. Tin (IV) complexes were synthesized by reacting R2SnCl₂ (R=Ph, Bu, Et and Me) with ligands in 1: 1 ratio in methanol. The synthesized compounds were characterized by elemental analyses, UV-Vis, IR and ¹H NMR, ¹³C NMR & ¹¹⁹Sn NMR spectral techniques.