La6Ni6P17 crystallizes in the cubic I-43m space group. La(1) is bonded in a 13-coordinate geometry to four equivalent Ni(1), one P(1), two equivalent P(2), and six equivalent P(3) atoms. Ni(1) is bonded in a distorted square co-planar geometry to four equivalent La(1) and four equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in an octahedral geometry to six equivalent La(1) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to three equivalent La(1) and three equivalent P(3) atoms. In the third P site, P(3) is bonded in a 6-coordinate geometry to three equivalent La(1), two equivalent Ni(1), and one P(2) atom.
La6Ni6P17 crystallizes in the cubic I-43m space group. La(1) is bonded in a 13-coordinate geometry to four equivalent Ni(1), one P(1), two equivalent P(2), and six equivalent P(3) atoms. All La(1)-Ni(1) bond lengths are 3.33 Å. The La(1)-P(1) bond length is 2.95 Å. Both La(1)-P(2) bond lengths are 3.19 Å. There are four shorter (3.14 Å) and two longer (3.22 Å) La(1)-P(3) bond lengths. Ni(1) is bonded in a distorted square co-planar geometry to four equivalent La(1) and four equivalent P(3) atoms. All Ni(1)-P(3) bond lengths are 2.21 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded in an octahedral geometry to six equivalent La(1) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to three equivalent La(1) and three equivalent P(3) atoms. All P(2)-P(3) bond lengths are 2.22 Å. In the third P site, P(3) is bonded in a 6-coordinate geometry to three equivalent La(1), two equivalent Ni(1), and one P(2) atom.