PrH3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. Pr(1) is bonded to four equivalent H(2) and eight equivalent H(1) atoms to form a mixture of distorted edge, corner, and face-sharing PrH12 cuboctahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded to four equivalent Pr(1) atoms to form a mixture of edge and corner-sharing HPr4 tetrahedra. In the second H site, H(2) is bonded in a square co-planar geometry to four equivalent Pr(1) atoms.
PrH3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. Pr(1) is bonded to four equivalent H(2) and eight equivalent H(1) atoms to form a mixture of distorted edge, corner, and face-sharing PrH12 cuboctahedra. All Pr(1)-H(2) bond lengths are 2.62 Å. All Pr(1)-H(1) bond lengths are 2.39 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded to four equivalent Pr(1) atoms to form a mixture of edge and corner-sharing HPr4 tetrahedra. In the second H site, H(2) is bonded in a square co-planar geometry to four equivalent Pr(1) atoms.