Quadrupole coupling constants and Mössbauer isomeric shifts in antimony compounds within Gaussian 98

Abstract

The electron density and quadrupole coupling constants of molecules containing Sb are analysed. The NQCC for antimony, calculated using the extended basis 6-311G** are much lower than the experimental data, while the use of the small 3-21G* basis led to NQCC closer to the experimental ones.