Structural features and Hirshfeld surface analysis of some diorganotin(IV) complexes containingpyridylligands

Organotin(IV) compounds have been considered as one of the widespread topics in modern coordination chemistry due to their coordinative abilities towards most of the donor ligands especially pyridyl ligands. The penta- and hexa-coordinated organotin(IV) adducts are more common.These compoundsare of particular interest especially in biological fields as anticancer agents andin some cases they show the anticancer activities greater than carboplatinum compound;they may show lower toxicity compared to cisplatin analogues[1-3].Herein, we reportthe preparation, structural characterization of new diorganotin(IV) (R = Ph, Me) complexes containing a related series of pyridyl ligands. The products have been characterized using elemental analysis, IR, multinuclear NMR (1H, 13C, 119Sn), DEPT-135° NMR spectroscopy and X-ray crystal structure determination in most cases.The 3D Hirshfeld surface analysis and 2D fingerprint maps were used for quantitative mapping out of the intermolecular interactions which reveal the presence of several π-π and hydrogen bonding interactions;they are associated between donor and acceptor atoms.