Materials Data on Na3(NiO2)2 by Materials Project

Dataset · Thu Apr 30 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1294311· OSTI ID:1294311

Na3(NiO2)2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are a spread of Na–O bond distances ranging from 2.48–2.57 Å. In the second Na1+ site, Na1+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent O2- atoms. All Na–O bond lengths are 2.27 Å. There are two inequivalent Ni+2.50+ sites. In the first Ni+2.50+ site, Ni+2.50+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ni–O bond lengths are 1.86 Å. In the second Ni+2.50+ site, Ni+2.50+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ni–O bond lengths are 1.84 Å. O2- is bonded to four Na1+ and two Ni+2.50+ atoms to form a mixture of distorted edge, corner, and face-sharing ONa4Ni2 octahedra. The corner-sharing octahedra tilt angles range from 0–75°.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1294311
• Report Number(s): mp-764056
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Na-Ni-O
Na3(NiO2)2
crystal structure