6533b834fe1ef96bd129df0e
RESEARCH PRODUCT
Mössbauer study of the solid state configuration of triorganotin derivatives with intramolecular coordination
G. Van KotenRenato BarbieriJ. G. Noltessubject
Stereochemistrymedia_common.quotation_subjectInfrared spectroscopychemistry.chemical_elementQuadrupole splittingAsymmetrySpectral lineInorganic ChemistryTrigonal bipyramidal molecular geometryCrystallographychemistryIntramolecular forceMössbauer spectroscopyMaterials ChemistryPhysical and Theoretical ChemistryTinmedia_commondescription
Triorganotin bromides with intramolecular nitrogen-to-tin coordination (I-VIII, Fig. 1) have been structurally investigated by Mossbauer and infrared spectroscopy. Mossbauer-Zeeman spectra have been measured for I and VIII in order to obtain the sign of the nuclear quadrupole splitting ΔE and the value of the asymmetry parameter η. Point-charge model values of ΔE and η have been calculated for environments of tin atoms in I-VIII which are plausible in view of the results of previous investigations. From trends of experimental ΔE in the series, and from the agreement between experimental and calculated Mossbauer parameters it is concluded that the compounds I-VIII all have trigonal bipyramidal structures with equatorial SnC3 skeletons. In compound VIII only one of the two Me2NCH2 ligands intramolecularly coordinates to tin similar to the situation observed for VIII in solution at low temperature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1980-01-01 | Inorganica Chimica Acta |