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RESEARCH PRODUCT
Synthesis of polymeric alkoxides from dialkyltin(IV) oxides and chloral, and their characterization by mössbauer and infrared spectroscopy
Lorenzo PelleritoGiuseppe RuisiRenato Barbierisubject
StereochemistryInfrared spectroscopyChloralZonal and meridionalQuadrupole splittingElemental formulaInorganic Chemistrychemistry.chemical_compoundTrigonal bipyramidal molecular geometryCrystallographychemistryMössbauer spectroscopyMaterials ChemistryPhysical and Theoretical ChemistryBenzenedescription
Abstract The reaction of (Alk2SnO)n with OCH·CCl3 gives compounds of elemental formula Alk2SnOCH- (CCI3)O (Alk = Bun, Octn), probably by addition of the Sn-O bond to the carbonyl group. Mossbauer parameters suggest the occurrence of five-coordinated Sn, and polymeric structures with bridging three- coordinating oxygens are proposed. The assumption that C2SnO3 units with trigonal bipyramidal type structures are present is consistent with point-charge model rationalization of the quadrupole splitting. Infrared spectra are in keeping with the proposed structures, suggesting, inter alia, bent C Sn C skeletons, but the analysis of possible ν(Sn-O) modes does not provide conclusive evidence for the proposed meridional Sn03 skeletal configuration. Osmometry in benzene is consistent with the presence of trimers or tetramers in solution, and the formation of these is rationalized in terms of the proposed solid state structures and of the IR spectra in solution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1979-01-01 | Inorganica Chimica Acta |