FT-IR spectra of cinchoninium tetrachlorocadmate (II) and tetrachloroz
incate (II) dihydrate complexes in the 50-650 cm(-1) region were obtai
ned and analysed. Normal coordinate calculations of the MX42- moieties
in these isomorphous compounds and their bromide analogues were done.
The force constants obtained confirm that the geometry of the tetrach
lorometallates investigated is strongly influenced by the cinchoninium
counter-cation.