6533b822fe1ef96bd127d58e
RESEARCH PRODUCT
Antimony-121 Mössbauer spectra of organoantimony derivatives containing Sb-Sb bonds
N. BertazziG. AlonzoH. J. BreunigK. H. Ebertsubject
Coupling constantNuclear and High Energy PhysicsElectron densityMössbauer effectIsotopeChemistryStable isotope ratiochemistry.chemical_elementCondensed Matter PhysicsAtomic and Molecular Physics and OpticsCrystallographyAntimonyComputational chemistryMössbauer spectroscopyPhysical and Theoretical ChemistryThin filmdescription
121-Sb Mossbauer data are reported for a number of organoantimony rings and catena-stibanes. These compounds are representative of RSb(Sb)2 and R2SbSb type of coordination, and spectral parameters are compared and discussed in relation to RSbCl2 and R2SbCl systems. Although the trend in isomer shift is similar, the present compounds show slightly less negative isomer shift values together with a remarkable reduction of the quadrupolar coupling constant. A rationalization of the quadrupolar interaction in the above series of compounds appears feasible by using point charge model calculations whose results, in terms of bonding, indicate a large contribution of p-electron density along Sb-Sb bonds.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-12-01 | Hyperfine Interactions |