Elastic and inelastic neutron studies of hydrogen molybdenum bronzes

Hydrogen molybdenum bronzes HxMoO3 (∼0.3 < x < 2.0) have been investigated with elastic and inelastic neutron scattering. Neutron diffraction studies of orthorhombic D0.36MoO3 show that deuterium is incorporated as -OD without any major structural change to the MoO3 layer lattice. The inelastic neutron scattering spectra of HxMoO3 phases confirm that, for H0.34MoO3, H is present as -OH, but, for the monoclinic phases H0.93MoO3, H1.68MoO3 and H2.0MoO3, only peaks associated with -OH2 groups are found.