Butylammonium hexachlorostannate exhibit two phase transitions, the fi
rst one at 232 K; this is shown by calorimetric measurements and spect
roscopic analysis and it is of second order. The second phase transiti
on is seen only by Raman scattering. The temperature is not well defin
ed, and the two phase transitions are order-disorder involving both th
e organic part of the chain and SnCl6 octahedra deformation. Raman and
Infrared spectra at different temperatures are recorded and some freq
uencies are assigned.