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DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the trigonal R3 space group. The structure is three-dimensional. Ce4+ is bonded in a 5-coordinate geometry to five Se2- atoms. There are a spread of Ce–Se bond distances ranging from 2.75–2.90 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a distorted trigonal planar geometry to three equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a distorted trigonal planar geometry to three equivalent Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ce4+ is bonded in a 5-coordinate geometry to eleven Se2- atoms. There are a spread of Ce–Se bond distances ranging from 2.89–3.39 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 8-coordinate geometry to six equivalent Ce4+ and eight Se2- atoms. There are two shorter (2.89 Å) and six longer (3.39 Å) Se–Se bond lengths. In the second Se2- site, Se2- is bonded to five equivalent Ce4+ and six equivalent Se2- atoms to form a mixture of face and corner-sharing SeCe5Se6 trigonal bipyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is trigonal omega-like structured and crystallizes in the hexagonal P-6m2 space group. The structure is two-dimensional and consists of four CeSe2 sheets oriented in the (0, 0, 1) direction. Ce4+ is bonded in a 6-coordinate geometry to six equivalent Se2- atoms. All Ce–Se bond lengths are 2.92 Å. Se2- is bonded in a distorted T-shaped geometry to three equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the cubic I432 space group. The structure is three-dimensional. Ce4+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are two shorter (2.82 Å) and two longer (2.83 Å) Ce–Se bond lengths. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 120 degrees geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a distorted linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is trigonal omega-like structured and crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one CeSe2 sheet oriented in the (1, 1, -1) direction. there are seven inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. All Ce–Se bond lengths are 2.87 Å. In the second Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. There are a spread of Ce–Se bond distances ranging from 2.87–2.89 Å. In the third Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. There are a spread of Ce–Se bond distances ranging from 2.87–2.89 Å. In the fourth Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. There are a spread of Ce–Se bond distances ranging from 2.87–2.89 Å. In the fifth Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. There are five shorter (2.88 Å) and one longer (2.91 Å) Ce–Se bond lengths. In the sixth Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. There are a spread of Ce–Se bond distances ranging from 2.87–2.91 Å. In the seventh Ce4+ site, Ce4+ is bonded to six Se2- atoms to form edge-sharing CeSe6 octahedra. There are a spread of Ce–Se bond distances ranging from 2.87–2.90 Å. There are thirteen inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the second Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the third Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the fifth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the sixth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the seventh Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the eighth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the ninth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the tenth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the eleventh Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the twelfth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms. In the thirteenth Se2- site, Se2- is bonded in a 3-coordinate geometry to three Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is Low Tridymite-like structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are one shorter (2.72 Å) and three longer (2.73 Å) Ce–Se bond lengths. In the second Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are one shorter (2.72 Å) and three longer (2.73 Å) Ce–Se bond lengths. There are five inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the fifth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is Zirconium Disilicide structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ce4+ is bonded in a 10-coordinate geometry to ten Se2- atoms. There are a spread of Ce–Se bond distances ranging from 2.96–3.52 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 4-coordinate geometry to four equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a 4-coordinate geometry to six equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is trigonal omega-like structured and crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three CeSe2 sheets oriented in the (0, 0, 1) direction. Ce4+ is bonded to six equivalent Se2- atoms to form edge-sharing CeSe6 octahedra. All Ce–Se bond lengths are 2.87 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is Low Tridymite-like structured and crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. there are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. All Ce–Se bond lengths are 2.70 Å. In the second Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. All Ce–Se bond lengths are 2.70 Å. There are five inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the fifth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is Low Tridymite-like structured and crystallizes in the orthorhombic Pnc2 space group. The structure is three-dimensional. there are four inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are two shorter (2.73 Å) and two longer (2.74 Å) Ce–Se bond lengths. In the second Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are two shorter (2.73 Å) and two longer (2.74 Å) Ce–Se bond lengths. In the third Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are one shorter (2.73 Å) and three longer (2.74 Å) Ce–Se bond lengths. In the fourth Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are one shorter (2.73 Å) and three longer (2.74 Å) Ce–Se bond lengths. There are six inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the fifth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the sixth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is quartz (alpha)-like structured and crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are two shorter (2.72 Å) and two longer (2.73 Å) Ce–Se bond lengths. In the second Ce4+ site, Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are two shorter (2.72 Å) and two longer (2.73 Å) Ce–Se bond lengths. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 120 degrees geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is high (beta) Cristobalite structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ce4+ is bonded to four equivalent Se2- atoms to form corner-sharing CeSe4 tetrahedra. All Ce–Se bond lengths are 2.71 Å. Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are a spread of Ce–Se bond distances ranging from 2.71–2.75 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 120 degrees geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. There are two shorter (2.71 Å) and two longer (2.72 Å) Ce–Se bond lengths. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 120 degrees geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is Low Tridymite-like structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. All Ce–Se bond lengths are 2.73 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the orthorhombic Pban space group. The structure is three-dimensional. Ce4+ is bonded in a distorted see-saw-like geometry to four Se2- atoms. There are a spread of Ce–Se bond distances ranging from 2.71–2.75 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a water-like geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the fourth Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 is High (Orthorhombic) Tridymite-like structured and crystallizes in the tetragonal I-4c2 space group. The structure is three-dimensional. Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. All Ce–Se bond lengths are 2.71 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a bent 150 degrees geometry to two equivalent Ce4+ atoms. In the third Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeSe2 by Materials Project

CeSe2 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ce4+ is bonded to four Se2- atoms to form corner-sharing CeSe4 tetrahedra. All Ce–Se bond lengths are 2.73 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a bent 120 degrees geometry to two equivalent Ce4+ atoms. In the second Se2- site, Se2- is bonded in a linear geometry to two equivalent Ce4+ atoms.

36 MATERIALS SCIENCE↗