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DOE OSTI2020

Materials Data on Ce(SiOs)2 by Materials Project

CeOs2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ce3+ is bonded in a 8-coordinate geometry to eight equivalent Os+1.50- atoms. All Ce–Os bond lengths are 3.22 Å. Os+1.50- is bonded in a 4-coordinate geometry to four equivalent Ce3+ and four equivalent Si atoms. All Os–Si bond lengths are 2.41 Å. Si is bonded in a 5-coordinate geometry to four equivalent Os+1.50- and one Si atom. The Si–Si bond length is 2.52 Å.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on CeSiOs by Materials Project

CeOsSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce3+ is bonded in a 5-coordinate geometry to five equivalent Si4- atoms. There are four shorter (3.11 Å) and one longer (3.35 Å) Ce–Si bond lengths. Os1+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing OsSi4 tetrahedra. All Os–Si bond lengths are 2.47 Å. Si4- is bonded in a 9-coordinate geometry to five equivalent Ce3+ and four equivalent Os1+ atoms.

36 MATERIALS SCIENCE↗