THE CRYSTAL STRUCTURES OF MG3N2 AND ZN3N2

摘要

The structures of Mg3N2 and Zn3N2 have been refined from neutron time-of-flight powder diffraction data. These compounds have the antibixbyite structure and are the first such to be fully refined. The space group is Ia (3) over bar, a = 9.9528(1) Angstrom (Mg3N2) and 9.7691(1) Angstrom (Zn3N2). A revised bond valence parameter for Mg-N bonds is suggested. (C) 1997 Academic Press. [References: 22]