Ni10GaP3 crystallizes in the trigonal P-3m1 space group. There are seven inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Ni(5) and two equivalent P(2) atoms. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to one Ni(2) and three equivalent P(2) atoms. In the third Ni site, Ni(3) is bonded in a 3-coordinate geometry to two equivalent Ni(5), one Ga(2), one P(2), and two equivalent P(1) atoms. In the fourth Ni site, Ni(4) is bonded in a 4-coordinate geometry to three equivalent Ni(5), one Ga(1), and three equivalent P(1) atoms. In the fifth Ni site, Ni(5) is bonded in a 12-coordinate geometry to one Ni(4), one Ni(6), two equivalent Ni(1), two equivalent Ni(3), two equivalent Ni(7), one Ga(1), one P(1), and two equivalent P(2) atoms. In the sixth Ni site, Ni(6) is bonded in a distorted tetrahedral geometry to three equivalent Ni(5), one Ga(1), and three equivalent P(2) atoms. In the seventh Ni site, Ni(7) is bonded in a 2-coordinate geometry to two equivalent Ni(5), one Ga(2), and two equivalent P(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 5-coordinate geometry to one Ni(4), one Ni(6), and three equivalent Ni(5) atoms. In the second Ga site, Ga(2) is bonded in a cuboctahedral geometry to six equivalent Ni(3) and six equivalent Ni(7) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a body-centered cubic geometry to two equivalent Ni(4), two equivalent Ni(5), and four equivalent Ni(3) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to one Ni(2), one Ni(3), one Ni(6), two equivalent Ni(1), two equivalent Ni(5), and two equivalent Ni(7) atoms.
Ni10GaP3 crystallizes in the trigonal P-3m1 space group. There are seven inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Ni(5) and two equivalent P(2) atoms. Both Ni(1)-Ni(5) bond lengths are 2.71 Å. Both Ni(1)-P(2) bond lengths are 2.22 Å. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to one Ni(2) and three equivalent P(2) atoms. The Ni(2)-Ni(2) bond length is 2.26 Å. All Ni(2)-P(2) bond lengths are 2.28 Å. In the third Ni site, Ni(3) is bonded in a 3-coordinate geometry to two equivalent Ni(5), one Ga(2), one P(2), and two equivalent P(1) atoms. Both Ni(3)-Ni(5) bond lengths are 2.63 Å. The Ni(3)-Ga(2) bond length is 2.52 Å. The Ni(3)-P(2) bond length is 2.29 Å. Both Ni(3)-P(1) bond lengths are 2.18 Å. In the fourth Ni site, Ni(4) is bonded in a 4-coordinate geometry to three equivalent Ni(5), one Ga(1), and three equivalent P(1) atoms. All Ni(4)-Ni(5) bond lengths are 2.64 Å. The Ni(4)-Ga(1) bond length is 2.44 Å. All Ni(4)-P(1) bond lengths are 2.40 Å. In the fifth Ni site, Ni(5) is bonded in a 12-coordinate geometry to one Ni(4), one Ni(6), two equivalent Ni(1), two equivalent Ni(3), two equivalent Ni(7), one Ga(1), one P(1), and two equivalent P(2) atoms. The Ni(5)-Ni(6) bond length is 2.53 Å. Both Ni(5)-Ni(7) bond lengths are 2.50 Å. The Ni(5)-Ga(1) bond length is 2.53 Å. The Ni(5)-P(1) bond length is 2.30 Å. Both Ni(5)-P(2) bond lengths are 2.26 Å. In the sixth Ni site, Ni(6) is bonded in a distorted tetrahedral geometry to three equivalent Ni(5), one Ga(1), and three equivalent P(2) atoms. The Ni(6)-Ga(1) bond length is 2.35 Å. All Ni(6)-P(2) bond lengths are 2.34 Å. In the seventh Ni site, Ni(7) is bonded in a 2-coordinate geometry to two equivalent Ni(5), one Ga(2), and two equivalent P(2) atoms. The Ni(7)-Ga(2) bond length is 2.59 Å. Both Ni(7)-P(2) bond lengths are 2.27 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 5-coordinate geometry to one Ni(4), one Ni(6), and three equivalent Ni(5) atoms. In the second Ga site, Ga(2) is bonded in a cuboctahedral geometry to six equivalent Ni(3) and six equivalent Ni(7) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a body-centered cubic geometry to two equivalent Ni(4), two equivalent Ni(5), and four equivalent Ni(3) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to one Ni(2), one Ni(3), one Ni(6), two equivalent Ni(1), two equivalent Ni(5), and two equivalent Ni(7) atoms.