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RESEARCH PRODUCT

The hydrolysis of Me2SnIV and Me3SnIV moieties monitored through 119Sn Mössbauer spectroscopy

Renato BarbieriArturo Silvestri

subject

Inorganic ChemistryHydrolysisReaction mechanismAqueous solutionChemistryMössbauer spectroscopyInorganic chemistryMaterials ChemistryQuadrupole splittingPhysical and Theoretical Chemistry

description

Abstract The 119 Sn Mossbauer parameters δ, isomer shift, and Δ E , nuclear quadrupole splitting, have been determined in frozen aqueous solutions of Me 2 Sn IV and Me 3 Sn IV moieties at varying pH. The resulting functions n versus pH (where n is the average number of protons released per mole of the organotin aquocation) agree satisfactorily with functions from potentiometry. The structures of the aquocations, as well as of the hydroxides, and of the mono-hydroxo complex [Me 2 Sn(OH)(OH 2 ) n ] + , are correlated to the Δ E exp data by point-charge model calculations.

https://doi.org/10.1016/s0020-1693(00)80924-x