Materials Data on BaNp(HO2)3 by Materials Project
BaNp(HO2)3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.68–3.19 Å. There are two inequivalent Np7+ sites. In the first Np7+ site, Np7+ is bonded to six O2- atoms to form corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are a spread of Np–O bond distances ranging from 1.90–2.41 Å. In the second Np7+ site, Np7+ is bonded to six O2- atoms to form corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are a spread of Np–O bond distances ranging from 1.91–2.37 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ba2+ and one Np7+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one Np7+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one Np7+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one Np7+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two Np7+ and one H1+ atom. In the sixth O2- site, O2- is bonded in a water-like geometry to one Ba2+ and two H1+ atoms.