Chemical Reviews, Vol.94, No.6, 1567-1584, 1994
Hindered Rotation of the Ammonium Ion in the Solid-State
Keywords:INELASTIC NEUTRON-SCATTERING;ATOM-ATOM POTENTIALS;SPIN-LATTICE RELAXATION;FERROELECTRIC PHASE-TRANSITION;(ND4)2SNCL6 SINGLE-CRYSTAL;HYDROGEN BIS CHLOROACETATE;POLARIZED RAMAN-SPECTRA;ALKALI-HALIDE LATTICES;TORSIONAL GROUND-STATE;XMF3 CUBIC PEROVSKITES