ChemInform Abstract: Novel Phosphides of Rare Earth Metals and Nickel.
Abstract
The novel compound Tb1-xNiP (x = 0.05) is synthesized from the elements at 1070 K within 350 h. The X-ray analysis of a single crystal reveals that this compound has the space group P63/mmc with Z=4.
ChemInform Abstract
The novel compound Tb1-xNiP (x = 0.05) is synthesized from the elements at 1070 K within 350 h. The X-ray analysis of a single crystal reveals that this compound has the space group P63/mmc with Z=4. The structure belongs to the AlB2 structural type. It is characterized by a regular distribution of the Ni and P atoms. The novel phosphides MNiP (M: Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Er, Tm, Lu) are prepared by the same procedure. They are shown to have the same structure as Tb1-xNiP. The monotonous change of the lattice constants of the novel phosphides points to a trivalent state of the rare earth elements. The aberration observed with CeNiP can be explained by assuming a change of the valence of the Ce atoms.
