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DOE OSTI2020

Materials Data on Ge2N2O by Materials Project

Ge2N2O crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. Ge4+ is bonded to three equivalent N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is one shorter (1.84 Å) and two longer (1.85 Å) Ge–N bond length. The Ge–O bond length is 1.78 Å. N3- is bonded in a trigonal planar geometry to three equivalent Ge4+ atoms. O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Ge4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge2N2O by Materials Project

Ge2N2O is beta indium sulfide-derived structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. there are three inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four equivalent N3- and two equivalent O2- atoms to form GeN4O2 octahedra that share corners with four equivalent GeN4 tetrahedra and edges with six GeN4O2 octahedra. All Ge–N bond lengths are 2.01 Å. Both Ge–O bond lengths are 1.92 Å. In the second Ge4+ site, Ge4+ is bonded to four N3- and two equivalent O2- atoms to form GeN4O2 octahedra that share corners with four equivalent GeN4 tetrahedra and edges with six GeN4O2 octahedra. There are three shorter (2.01 Å) and one longer (2.02 Å) Ge–N bond lengths. Both Ge–O bond lengths are 1.95 Å. In the third Ge4+ site, Ge4+ is bonded to four N3- atoms to form corner-sharing GeN4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–59°. There is two shorter (1.89 Å) and two longer (1.91 Å) Ge–N bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to four Ge4+ atoms to form a mixture of distorted corner and edge-sharing NGe4 trigonal pyramids. In the second N3- site, N3- is bonded in a distorted rectangular see-saw-like geometry to four Ge4+ atoms. O2- is bonded in a 3-coordinate geometry to three Ge4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge2N2O by Materials Project

Ge2N2O crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. All Ge–N bond lengths are 1.87 Å. The Ge–O bond length is 1.78 Å. In the second Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is two shorter (1.85 Å) and one longer (1.86 Å) Ge–N bond length. The Ge–O bond length is 1.80 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal non-coplanar geometry to three Ge4+ atoms. In the second N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to three Ge4+ atoms. O2- is bonded in a bent 120 degrees geometry to two Ge4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge2N2O by Materials Project

Ge2N2O crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is two shorter (1.86 Å) and one longer (1.87 Å) Ge–N bond length. The Ge–O bond length is 1.79 Å. In the second Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is two shorter (1.85 Å) and one longer (1.86 Å) Ge–N bond length. The Ge–O bond length is 1.80 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal non-coplanar geometry to three Ge4+ atoms. In the second N3- site, N3- is bonded in a trigonal planar geometry to three Ge4+ atoms. O2- is bonded in a bent 120 degrees geometry to two Ge4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge2N2O by Materials Project

Ge2N2O crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to two N3- and two O2- atoms to form corner-sharing GeN2O2 tetrahedra. There is one shorter (1.83 Å) and one longer (1.84 Å) Ge–N bond length. There is one shorter (1.78 Å) and one longer (1.87 Å) Ge–O bond length. In the second Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There are a spread of Ge–N bond distances ranging from 1.77–1.85 Å. The Ge–O bond length is 1.96 Å. In the third Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is two shorter (1.86 Å) and one longer (1.87 Å) Ge–N bond length. The Ge–O bond length is 1.80 Å. In the fourth Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There are a spread of Ge–N bond distances ranging from 1.83–1.85 Å. The Ge–O bond length is 1.79 Å. In the fifth Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is two shorter (1.86 Å) and one longer (1.87 Å) Ge–N bond length. The Ge–O bond length is 1.79 Å. In the sixth Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There is one shorter (1.83 Å) and two longer (1.85 Å) Ge–N bond length. The Ge–O bond length is 1.80 Å. In the seventh Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There are a spread of Ge–N bond distances ranging from 1.77–1.87 Å. The Ge–O bond length is 2.02 Å. In the eighth Ge4+ site, Ge4+ is bonded to three N3- and one O2- atom to form corner-sharing GeN3O tetrahedra. There are a spread of Ge–N bond distances ranging from 1.84–1.86 Å. The Ge–O bond length is 1.79 Å. There are eight inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to three Ge4+ atoms. In the second N3- site, N3- is bonded in a trigonal planar geometry to three Ge4+ atoms. In the third N3- site, N3- is bonded in a trigonal planar geometry to three Ge4+ atoms. In the fourth N3- site, N3- is bonded in a trigonal non-coplanar geometry to three Ge4+ atoms. In the fifth N3- site, N3- is bonded in a trigonal planar geometry to three Ge4+ atoms. In the sixth N3- site, N3- is bonded in a bent 120 degrees geometry to two Ge4+ atoms. In the seventh N3- site, N3- is bonded in a trigonal non-coplanar geometry to three Ge4+ atoms. In the eighth N3- site, N3- is bonded in a trigonal planar geometry to three Ge4+ atoms. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Ge4+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two Ge4+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two Ge4+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to two Ge4+ atoms.

36 MATERIALS SCIENCE↗