PrNiIn is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to two equivalent Ni(1), four equivalent Ni(2), two equivalent In(1), and four equivalent In(2) atoms to form a mixture of face and edge-sharing PrIn6Ni6 cuboctahedra. In the second Pr site, Pr(2) is bonded to two equivalent Ni(1), four equivalent Ni(2), two equivalent In(1), and four equivalent In(2) atoms to form a mixture of face and edge-sharing PrIn6Ni6 cuboctahedra. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one In(1), and two equivalent In(2) atoms. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one In(1), and two equivalent In(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Ni(1), and two equivalent Ni(2) atoms. In the second In site, In(2) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Ni(1), and two equivalent Ni(2) atoms.
PrNiIn is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to two equivalent Ni(1), four equivalent Ni(2), two equivalent In(1), and four equivalent In(2) atoms to form a mixture of face and edge-sharing PrIn6Ni6 cuboctahedra. Both Pr(1)-Ni(1) bond lengths are 3.34 Å. All Pr(1)-Ni(2) bond lengths are 3.24 Å. Both Pr(1)-In(1) bond lengths are 3.26 Å. All Pr(1)-In(2) bond lengths are 3.27 Å. In the second Pr site, Pr(2) is bonded to two equivalent Ni(1), four equivalent Ni(2), two equivalent In(1), and four equivalent In(2) atoms to form a mixture of face and edge-sharing PrIn6Ni6 cuboctahedra. Both Pr(2)-Ni(1) bond lengths are 3.29 Å. There are two shorter (3.24 Å) and two longer (3.28 Å) Pr(2)-Ni(2) bond lengths. Both Pr(2)-In(1) bond lengths are 3.28 Å. There are two shorter (3.26 Å) and two longer (3.28 Å) Pr(2)-In(2) bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one In(1), and two equivalent In(2) atoms. The Ni(1)-In(1) bond length is 2.60 Å. Both Ni(1)-In(2) bond lengths are 2.60 Å. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one In(1), and two equivalent In(2) atoms. The Ni(2)-In(1) bond length is 2.65 Å. Both Ni(2)-In(2) bond lengths are 2.66 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Ni(1), and two equivalent Ni(2) atoms. In the second In site, In(2) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Ni(1), and two equivalent Ni(2) atoms.