Dynamics of NH3 ligands and ClO4− anions in the phase transition in [Cd(NH3)6](ClO4)2 studied by x-ray powder diffraction, neutron scattering methods and infrared spectroscopy
Phase transition in [Cd(NH3)6](ClO4)2 investigated by a set of complementary methods. XRD and ND diffraction measurements indicate that change of the crystal structure is associated with the phase transition. Anions are disordered in the high temperature phase. Reorientation of ClO4- anions is significantly slowed down in the vicinity of the phase transition. Quasi-elastic neutron scattering revealed that NH3 ligands reorientate fast in the low and high temperature phases.