Neodymium(II) hydride

Neodymium dihydride is an inorganic compound, with the chemical formula of NdH2, although it is an electride, and it is actually composed of Nd3+(e−)(H−)2. It is ferromagnetic.

Chemical properties
Neodymium dihydride reacts with lithium borohydride to obtain neodymium tetraboride:
 * NdH2 + 4 LiBH4 → NdB4 + 4 LiH + 7 H2↑

External reading

 * Struss, Arthur W.; Corbett, John D. Reaction of hydrogen with metallic and reduced halides. The requirement of delocalized electrons for reaction. Inorganic Chemistry, 1978. 17(4): 965-9. DOI:10.1021/ic50182a034