Pr3NF6 crystallizes in the triclinic P1 space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to two equivalent N(1), one F(1), one F(3), one F(5), one F(6), and two equivalent F(4) atoms. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one N(1), one F(2), one F(4), one F(5), one F(6), two equivalent F(1), and two equivalent F(3) atoms. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one N(1), one F(1), one F(4), one F(5), two equivalent F(2), and two equivalent F(6) atoms. N(1) is bonded to one Pr(2), one Pr(3), and two equivalent Pr(1) atoms to form NPr4 tetrahedra that share  a cornercorner with one F(1)Pr4 tetrahedra, corners with two equivalent N(1)Pr4 tetrahedra, corners with two equivalent F(4)Pr4 tetrahedra, corners with five equivalent F(6)Pr4 tetrahedra, edges with two equivalent F(1)Pr4 tetrahedra, and edges with two equivalent F(4)Pr4 tetrahedra. There are six inequivalent F sites. In the first F site, F(1) is bonded to one Pr(1), one Pr(3), and two equivalent Pr(2) atoms to form FPr4 tetrahedra that share  a cornercorner with one N(1)Pr4 tetrahedra,  a cornercorner with one F(6)Pr4 tetrahedra, corners with two equivalent F(1)Pr4 tetrahedra, corners with five equivalent F(4)Pr4 tetrahedra, edges with two equivalent N(1)Pr4 tetrahedra, and edges with two equivalent F(6)Pr4 tetrahedra. In the second F site, F(2) is bonded in a trigonal non-coplanar geometry to one Pr(2) and two equivalent Pr(3) atoms. In the third F site, F(3) is bonded in a trigonal planar geometry to one Pr(1) and two equivalent Pr(2) atoms. In the fourth F site, F(4) is bonded to one Pr(2), one Pr(3), and two equivalent Pr(1) atoms to form FPr4 tetrahedra that share  a cornercorner with one F(6)Pr4 tetrahedra, corners with two equivalent N(1)Pr4 tetrahedra, corners with two equivalent F(4)Pr4 tetrahedra, corners with five equivalent F(1)Pr4 tetrahedra, edges with two equivalent N(1)Pr4 tetrahedra, and edges with two equivalent F(6)Pr4 tetrahedra. In the fifth F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1), one Pr(2), and one Pr(3) atom. In the sixth F site, F(6) is bonded to one Pr(1), one Pr(2), and two equivalent Pr(3) atoms to form distorted FPr4 tetrahedra that share  a cornercorner with one F(1)Pr4 tetrahedra,  a cornercorner with one F(4)Pr4 tetrahedra, corners with two equivalent F(6)Pr4 tetrahedra, corners with five equivalent N(1)Pr4 tetrahedra, edges with two equivalent F(1)Pr4 tetrahedra, and edges with two equivalent F(4)Pr4 tetrahedra.
Pr3NF6 crystallizes in the triclinic P1 space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to two equivalent N(1), one F(1), one F(3), one F(5), one F(6), and two equivalent F(4) atoms. There is one shorter (2.43 Å) and one longer (2.51 Å) Pr(1)-N(1) bond length. The Pr(1)-F(1) bond length is 2.55 Å. The Pr(1)-F(3) bond length is 2.50 Å. The Pr(1)-F(5) bond length is 2.47 Å. The Pr(1)-F(6) bond length is 2.55 Å. There is one shorter (2.50 Å) and one longer (2.75 Å) Pr(1)-F(4) bond length. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one N(1), one F(2), one F(4), one F(5), one F(6), two equivalent F(1), and two equivalent F(3) atoms. The Pr(2)-N(1) bond length is 2.34 Å. The Pr(2)-F(2) bond length is 2.60 Å. The Pr(2)-F(4) bond length is 2.52 Å. The Pr(2)-F(5) bond length is 2.52 Å. The Pr(2)-F(6) bond length is 2.99 Å. There is one shorter (2.49 Å) and one longer (2.58 Å) Pr(2)-F(1) bond length. There is one shorter (2.39 Å) and one longer (2.47 Å) Pr(2)-F(3) bond length. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one N(1), one F(1), one F(4), one F(5), two equivalent F(2), and two equivalent F(6) atoms. The Pr(3)-N(1) bond length is 2.37 Å. The Pr(3)-F(1) bond length is 2.63 Å. The Pr(3)-F(4) bond length is 2.47 Å. The Pr(3)-F(5) bond length is 2.49 Å. There is one shorter (2.37 Å) and one longer (2.55 Å) Pr(3)-F(2) bond length. There is one shorter (2.50 Å) and one longer (2.51 Å) Pr(3)-F(6) bond length. N(1) is bonded to one Pr(2), one Pr(3), and two equivalent Pr(1) atoms to form NPr4 tetrahedra that share  a cornercorner with one F(1)Pr4 tetrahedra, corners with two equivalent N(1)Pr4 tetrahedra, corners with two equivalent F(4)Pr4 tetrahedra, corners with five equivalent F(6)Pr4 tetrahedra, edges with two equivalent F(1)Pr4 tetrahedra, and edges with two equivalent F(4)Pr4 tetrahedra. There are six inequivalent F sites. In the first F site, F(1) is bonded to one Pr(1), one Pr(3), and two equivalent Pr(2) atoms to form FPr4 tetrahedra that share  a cornercorner with one N(1)Pr4 tetrahedra,  a cornercorner with one F(6)Pr4 tetrahedra, corners with two equivalent F(1)Pr4 tetrahedra, corners with five equivalent F(4)Pr4 tetrahedra, edges with two equivalent N(1)Pr4 tetrahedra, and edges with two equivalent F(6)Pr4 tetrahedra. In the second F site, F(2) is bonded in a trigonal non-coplanar geometry to one Pr(2) and two equivalent Pr(3) atoms. In the third F site, F(3) is bonded in a trigonal planar geometry to one Pr(1) and two equivalent Pr(2) atoms. In the fourth F site, F(4) is bonded to one Pr(2), one Pr(3), and two equivalent Pr(1) atoms to form FPr4 tetrahedra that share  a cornercorner with one F(6)Pr4 tetrahedra, corners with two equivalent N(1)Pr4 tetrahedra, corners with two equivalent F(4)Pr4 tetrahedra, corners with five equivalent F(1)Pr4 tetrahedra, edges with two equivalent N(1)Pr4 tetrahedra, and edges with two equivalent F(6)Pr4 tetrahedra. In the fifth F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1), one Pr(2), and one Pr(3) atom. In the sixth F site, F(6) is bonded to one Pr(1), one Pr(2), and two equivalent Pr(3) atoms to form distorted FPr4 tetrahedra that share  a cornercorner with one F(1)Pr4 tetrahedra,  a cornercorner with one F(4)Pr4 tetrahedra, corners with two equivalent F(6)Pr4 tetrahedra, corners with five equivalent N(1)Pr4 tetrahedra, edges with two equivalent F(1)Pr4 tetrahedra, and edges with two equivalent F(4)Pr4 tetrahedra.