“…Vamek et al (326) use CNDO calculations for SnCl4 and some of its organic complexes to compare with isomer shift data and relate these results to the interactioin between organic ligand and tin. Hartmann and Rysavy (122) use the Xa method to calculate electron densities in tellurium compounds and show that their results give agreement with earlier estimates of the nuclear radius change for 125Te.…”