BaNp(HO2)3 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 9-coordinate geometry to one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Np sites. In the first Np site, Np(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 54°. In the second Np site, Np(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Np(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Np(1), one Np(2), and one H(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Ba(1), one H(2), and one H(3) atom.
BaNp(HO2)3 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 9-coordinate geometry to one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. The Ba(1)-O(6) bond length is 2.91 Å. There is one shorter (2.68 Å) and one longer (2.80 Å) Ba(1)-O(1) bond length. There is one shorter (2.80 Å) and one longer (2.87 Å) Ba(1)-O(2) bond length. There is one shorter (2.88 Å) and one longer (3.19 Å) Ba(1)-O(3) bond length. There is one shorter (2.76 Å) and one longer (2.86 Å) Ba(1)-O(4) bond length. There are two inequivalent Np sites. In the first Np site, Np(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 54°. Both Np(1)-O(1) bond lengths are 1.91 Å. Both Np(1)-O(2) bond lengths are 1.90 Å. Both Np(1)-O(5) bond lengths are 2.41 Å. In the second Np site, Np(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 54°. Both Np(2)-O(3) bond lengths are 1.92 Å. Both Np(2)-O(4) bond lengths are 1.91 Å. Both Np(2)-O(5) bond lengths are 2.37 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. The H(1)-O(5) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. The H(2)-O(6) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(6) atom. The H(3)-O(6) bond length is 0.99 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Np(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one Np(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Np(1), one Np(2), and one H(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Ba(1), one H(2), and one H(3) atom.