6533b871fe1ef96bd12d22d5

RESEARCH PRODUCT

Synthesis and spectroscopic characterization of organotin derivatives ofN-benzoylglycylglycine

Maria Teresa Lo GiudiceGiuseppe Ruisi

subject

DipeptideDenticityStereochemistryDimerchemistry.chemical_elementGeneral ChemistryNuclear magnetic resonance spectroscopyCarbon-13 NMRInorganic Chemistrychemistry.chemical_compoundchemistryMössbauer spectroscopyPolymer chemistryCarboxylateTin

description

Di- and tri-organotin derivatives of N-benzoylglycylglycine (HBzGlyGly) were synthesized and characterized by infrared, 1H, 13C NMR and 119Sn Mossbauer spectroscopy. Diorganotin derivatives appear to be dimer distannoxanes ([R2SnBzGlyGly]2O)2 (R = CH3, n-C4H9, n-C8H17) with a ladder-type structure where tin atoms are five-coordinated and N-benzoylglycylglycine alternatively acts as a unidentate or bridging bidentate ligand through the carboxylate group. For triorganotin derivatives R3SnBzGlyGly (R= CH3, n-C4Hg) we propose a polymeric structure where N-benzoylglycylglycine bridges planar SnC3 units through the carboxylate group.

https://doi.org/10.1002/aoc.590050504