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6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Al2Zn2S5 by Materials Project

Zn2Al2S5 crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Zn2Al2S5 sheets oriented in the (0, 0, 1) direction. Zn2+ is bonded to six S2- atoms to form ZnS6 octahedra that share corners with three equivalent ZnS6 octahedra, corners with three equivalent AlS4 tetrahedra, and edges with nine equivalent ZnS6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are three shorter (2.48 Å) and three longer (2.60 Å) Zn–S bond lengths. Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three equivalent ZnS6 octahedra and corners with six equivalent AlS4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. There are one shorter (2.18 Å) and three longer (2.34 Å) Al–S bond lengths. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded to six equivalent Zn2+ atoms to form SZn6 octahedra that share corners with six equivalent SAlZn3 trigonal pyramids, edges with six equivalent SZn6 octahedra, and edges with six equivalent SAlZn3 trigonal pyramids. In the second S2- site, S2- is bonded to three equivalent Zn2+ and one Al3+ atom to form distorted SAlZn3 trigonal pyramids that share corners with three equivalent SZn6 octahedra, corners with six equivalent SAlZn3 trigonal pyramids, and edges with three equivalent SZn6 octahedra. The corner-sharing octahedral tilt angles are 4°. In the third S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Al3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al2Zn2S5 by Materials Project

Zn2Al2S5 crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of one Zn2Al2S5 sheet oriented in the (0, 0, 1) direction. Zn2+ is bonded to six S2- atoms to form ZnS6 octahedra that share corners with three equivalent ZnS6 octahedra, corners with three equivalent AlS4 tetrahedra, and edges with nine equivalent ZnS6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are three shorter (2.48 Å) and three longer (2.59 Å) Zn–S bond lengths. Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three equivalent ZnS6 octahedra and corners with six equivalent AlS4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. There are one shorter (2.18 Å) and three longer (2.34 Å) Al–S bond lengths. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded to six equivalent Zn2+ atoms to form SZn6 octahedra that share corners with six equivalent SAlZn3 trigonal pyramids, edges with six equivalent SZn6 octahedra, and edges with six equivalent SAlZn3 trigonal pyramids. In the second S2- site, S2- is bonded to three equivalent Zn2+ and one Al3+ atom to form distorted SAlZn3 trigonal pyramids that share corners with three equivalent SZn6 octahedra, corners with six equivalent SAlZn3 trigonal pyramids, and edges with three equivalent SZn6 octahedra. The corner-sharing octahedral tilt angles are 4°. In the third S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Al3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al2Zn2S5 by Materials Project

Zn2Al2S5 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with five ZnS4 tetrahedra and corners with five AlS4 tetrahedra. There are a spread of Zn–S bond distances ranging from 2.30–2.40 Å. In the second Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent ZnS4 tetrahedra and corners with six AlS4 tetrahedra. There are a spread of Zn–S bond distances ranging from 2.32–2.41 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three AlS4 tetrahedra and corners with five ZnS4 tetrahedra. There are a spread of Al–S bond distances ranging from 2.25–2.30 Å. In the second Al3+ site, Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three AlS4 tetrahedra and corners with six ZnS4 tetrahedra. There are a spread of Al–S bond distances ranging from 2.27–2.30 Å. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded to three Zn2+ and one Al3+ atom to form corner-sharing SAlZn3 tetrahedra. In the second S2- site, S2- is bonded in a trigonal non-coplanar geometry to one Zn2+ and two Al3+ atoms. In the third S2- site, S2- is bonded in a trigonal non-coplanar geometry to one Zn2+ and two equivalent Al3+ atoms. In the fourth S2- site, S2- is bonded in a trigonal non-coplanar geometry to two Zn2+ and one Al3+ atom. In the fifth S2- site, S2- is bonded in a trigonal non-coplanar geometry to one Zn2+ and two equivalent Al3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al2Zn2S5 by Materials Project

Zn2Al2S5 crystallizes in the hexagonal P6_3/mmc space group. The structure is two-dimensional and consists of two Zn2Al2S5 sheets oriented in the (0, 0, 1) direction. Zn2+ is bonded to six S2- atoms to form ZnS6 octahedra that share corners with six equivalent ZnS6 octahedra, corners with three equivalent AlS4 tetrahedra, edges with six equivalent ZnS6 octahedra, and a faceface with one ZnS6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are three shorter (2.48 Å) and three longer (2.60 Å) Zn–S bond lengths. Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three equivalent ZnS6 octahedra and corners with six equivalent AlS4 tetrahedra. The corner-sharing octahedral tilt angles are 59°. There are one shorter (2.18 Å) and three longer (2.34 Å) Al–S bond lengths. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to six equivalent Zn2+ atoms. In the second S2- site, S2- is bonded to three equivalent Zn2+ and one Al3+ atom to form distorted corner-sharing SAlZn3 trigonal pyramids. In the third S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Al3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al2Zn2S5 by Materials Project

Zn2Al2S5 crystallizes in the hexagonal P6_3mc space group. The structure is two-dimensional and consists of two Zn2Al2S5 sheets oriented in the (0, 0, 1) direction. there are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent AlS6 octahedra and corners with six equivalent ZnS4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There are three shorter (2.28 Å) and one longer (2.54 Å) Zn–S bond lengths. In the second Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent AlS6 octahedra, corners with three equivalent AlS4 tetrahedra, and corners with six equivalent ZnS4 tetrahedra. The corner-sharing octahedral tilt angles are 58°. There are one shorter (2.24 Å) and three longer (2.37 Å) Zn–S bond lengths. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six S2- atoms to form AlS6 octahedra that share corners with six ZnS4 tetrahedra and edges with six equivalent AlS6 octahedra. There are three shorter (2.44 Å) and three longer (2.53 Å) Al–S bond lengths. In the second Al3+ site, Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three equivalent ZnS4 tetrahedra and corners with six equivalent AlS4 tetrahedra. There are one shorter (2.27 Å) and three longer (2.30 Å) Al–S bond lengths. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Zn2+ atoms. In the second S2- site, S2- is bonded to one Zn2+ and three equivalent Al3+ atoms to form a mixture of edge and corner-sharing SAl3Zn tetrahedra. In the third S2- site, S2- is bonded to one Zn2+ and three equivalent Al3+ atoms to form a mixture of distorted edge and corner-sharing SAl3Zn trigonal pyramids. In the fourth S2- site, S2- is bonded to three equivalent Zn2+ and one Al3+ atom to form SAlZn3 tetrahedra that share corners with six equivalent SAlZn3 tetrahedra and corners with three equivalent SAl3Zn trigonal pyramids. In the fifth S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Al3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al2Zn2S5 by Materials Project

Zn2Al2S5 crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of three Zn2Al2S5 sheets oriented in the (0, 0, 1) direction. there are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent AlS6 octahedra and corners with six equivalent ZnS4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There are three shorter (2.28 Å) and one longer (2.55 Å) Zn–S bond lengths. In the second Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent AlS6 octahedra, corners with three equivalent AlS4 tetrahedra, and corners with six equivalent ZnS4 tetrahedra. The corner-sharing octahedral tilt angles are 58°. There are one shorter (2.25 Å) and three longer (2.37 Å) Zn–S bond lengths. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six S2- atoms to form AlS6 octahedra that share corners with six ZnS4 tetrahedra and edges with six equivalent AlS6 octahedra. There are three shorter (2.44 Å) and three longer (2.53 Å) Al–S bond lengths. In the second Al3+ site, Al3+ is bonded to four S2- atoms to form AlS4 tetrahedra that share corners with three equivalent ZnS4 tetrahedra and corners with six equivalent AlS4 tetrahedra. There are one shorter (2.28 Å) and three longer (2.30 Å) Al–S bond lengths. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Zn2+ atoms. In the second S2- site, S2- is bonded to one Zn2+ and three equivalent Al3+ atoms to form distorted SAl3Zn trigonal pyramids that share corners with six SAlZn3 tetrahedra, corners with six equivalent SAl3Zn trigonal pyramids, and edges with three equivalent SAl3Zn tetrahedra. In the third S2- site, S2- is bonded in a trigonal non-coplanar geometry to three equivalent Al3+ atoms. In the fourth S2- site, S2- is bonded to one Zn2+ and three equivalent Al3+ atoms to form a mixture of edge and corner-sharing SAl3Zn tetrahedra. In the fifth S2- site, S2- is bonded to three equivalent Zn2+ and one Al3+ atom to form SAlZn3 tetrahedra that share corners with six equivalent SAlZn3 tetrahedra and corners with three equivalent SAl3Zn trigonal pyramids.

36 MATERIALS SCIENCE↗