Local structural analysis on decomposition process of LiAl(ND2)4

Abstract

Local structural changes that accompany amorphization during the decomposition of LiAl(ND2)4were investigated by neutron total scattering measurements. Structure factors before the decomposition were attributed to single-phase LiAl(ND2)4characterized by isolated [ND2] units. Atomic pair distribution functions after heat treatments at 433 and 673K showed that LiAl(ND2)4decomposed to amorphous mixed phases that contain Li3AlN2and AlN.