Table 2: n Mössbauer spectroscopic data for complexes 16 at 80 K.

Molecule (mm  ) (mm  ) C-Sn-C angle Area (%) (mm  ) (mm  ) C-Sn-C angle Area (%)

11.223.09130561.333.6514844
21.313.53143291.563.6814971
41.342.93100
51.242.48100
61.443.18100

he C-Sn-C angles ( ) are calculated from the equation following , where the partial quadrupole splitting (p.q.s.), m , used in the calculations was (R = Me, Bu) [31].