Materials Data on CeMnAsO by Materials Project
CeMnAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four equivalent O2- atoms. All Ce–As bond lengths are 3.25 Å. All Ce–O bond lengths are 2.36 Å. Mn2+ is bonded to four equivalent As3- atoms to form a mixture of corner and edge-sharing MnAs4 tetrahedra. All Mn–As bond lengths are 2.66 Å. As3- is bonded in a 8-coordinate geometry to four equivalent Ce3+ and four equivalent Mn2+ atoms. O2- is bonded to four equivalent Ce3+ atoms to form a mixture of corner and edge-sharing OCe4 tetrahedra.
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