NpZn(OF2)3 crystallizes in the monoclinic C2 space group. There are two inequivalent Np sites. In the first Np site, Np(1) is bonded to one O(4), two equivalent F(2), two equivalent F(5), and two equivalent F(6) atoms to form distorted NpOF6 pentagonal bipyramids that share corners with four equivalent Zn(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 31-38°. In the second Np site, Np(2) is bonded to one O(1), two equivalent F(1), two equivalent F(3), and two equivalent F(4) atoms to form distorted NpOF6 pentagonal bipyramids that share corners with four equivalent Zn(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 31-37°. Zn(1) is bonded to one O(2), one O(3), one F(1), one F(2), one F(3), and one F(6) atom to form distorted ZnO2F4 octahedra that share corners with two equivalent Np(1)OF6 pentagonal bipyramids and corners with two equivalent Np(2)OF6 pentagonal bipyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Np(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Zn(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Zn(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Np(1) atom. There are six inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 150 degrees geometry to one Np(2) and one Zn(1) atom. In the second F site, F(2) is bonded in a bent 150 degrees geometry to one Np(1) and one Zn(1) atom. In the third F site, F(3) is bonded in a bent 150 degrees geometry to one Np(2) and one Zn(1) atom. In the fourth F site, F(4) is bonded in a single-bond geometry to one Np(2) atom. In the fifth F site, F(5) is bonded in a single-bond geometry to one Np(1) atom. In the sixth F site, F(6) is bonded in a bent 150 degrees geometry to one Np(1) and one Zn(1) atom.
NpZn(OF2)3 crystallizes in the monoclinic C2 space group. There are two inequivalent Np sites. In the first Np site, Np(1) is bonded to one O(4), two equivalent F(2), two equivalent F(5), and two equivalent F(6) atoms to form distorted NpOF6 pentagonal bipyramids that share corners with four equivalent Zn(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 31-38°. The Np(1)-O(4) bond length is 1.81 Å. Both Np(1)-F(2) bond lengths are 2.16 Å. Both Np(1)-F(5) bond lengths are 2.05 Å. Both Np(1)-F(6) bond lengths are 2.12 Å. In the second Np site, Np(2) is bonded to one O(1), two equivalent F(1), two equivalent F(3), and two equivalent F(4) atoms to form distorted NpOF6 pentagonal bipyramids that share corners with four equivalent Zn(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 31-37°. The Np(2)-O(1) bond length is 1.81 Å. Both Np(2)-F(1) bond lengths are 2.09 Å. Both Np(2)-F(3) bond lengths are 2.18 Å. Both Np(2)-F(4) bond lengths are 2.06 Å. Zn(1) is bonded to one O(2), one O(3), one F(1), one F(2), one F(3), and one F(6) atom to form distorted ZnO2F4 octahedra that share corners with two equivalent Np(1)OF6 pentagonal bipyramids and corners with two equivalent Np(2)OF6 pentagonal bipyramids. The Zn(1)-O(2) bond length is 1.88 Å. The Zn(1)-O(3) bond length is 1.88 Å. The Zn(1)-F(1) bond length is 2.46 Å. The Zn(1)-F(2) bond length is 2.15 Å. The Zn(1)-F(3) bond length is 2.10 Å. The Zn(1)-F(6) bond length is 2.36 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Np(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Zn(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Zn(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Np(1) atom. There are six inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 150 degrees geometry to one Np(2) and one Zn(1) atom. In the second F site, F(2) is bonded in a bent 150 degrees geometry to one Np(1) and one Zn(1) atom. In the third F site, F(3) is bonded in a bent 150 degrees geometry to one Np(2) and one Zn(1) atom. In the fourth F site, F(4) is bonded in a single-bond geometry to one Np(2) atom. In the fifth F site, F(5) is bonded in a single-bond geometry to one Np(1) atom. In the sixth F site, F(6) is bonded in a bent 150 degrees geometry to one Np(1) and one Zn(1) atom.