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Materials Data on K(IrO2)4 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1666973· OSTI ID:1666973
K(IrO2)4 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All K–O bond lengths are 3.01 Å. Ir+3.75+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Ir–O bond distances ranging from 1.97–2.08 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Ir+3.75+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent K1+ and three equivalent Ir+3.75+ atoms.
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:
1666973
Report Number(s):
mp-1103777
Country of Publication:
United States
Language:
English

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