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Materials Data on Sc39N34 by Materials Project

(Sc3N2)2(Sc2N)2Sc29N28 crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of one Sc29N28 sheet oriented in the (0, 0, 1) direction; two Sc2N sheets oriented in the (0, 0, 1) direction; and two Sc3N2 sheets oriented in the (0, 0, 1) direction. In the Sc29N28 sheet, there are eight inequivalent Sc+2.62+ sites. In the first Sc+2.62+ site, Sc+2.62+ is bonded in a distorted T-shaped geometry to three equivalent N3- atoms. All Sc–N bond lengths are 2.15 Å. In the second Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedral tilt angles are 4°. There are three shorter (2.20 Å) and three longer (2.36 Å) Sc–N bond lengths. In the third Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedra tilt angles range from 2–4°. There are three shorter (2.24 Å) and three longer (2.31 Å) Sc–N bond lengths. In the fourth Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedra tilt angles range from 1–2°. There are three shorter (2.25 Å) and three longer (2.29 Å) Sc–N bond lengths. In the fifth Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are three shorter (2.26 Å) and three longer (2.28 Å) Sc–N bond lengths. In the sixth Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sc–N bond lengths are 2.27 Å. In the seventh Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sc–N bond lengths are 2.27 Å. In the eighth Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing ScN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sc–N bond lengths are 2.27 Å. There are eight inequivalent N3- sites. In the first N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 6°. In the second N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedra tilt angles range from 1–3°. In the third N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedra tilt angles range from 3–6°. In the fourth N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 1°. In the fifth N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the sixth N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the seventh N3- site, N3- is bonded to six equivalent Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the eighth N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 0°. All N–Sc bond lengths are 2.27 Å. In each Sc2N sheet, there are two inequivalent Sc+2.62+ sites. In the first Sc+2.62+ site, Sc+2.62+ is bonded in a distorted T-shaped geometry to three equivalent N3- atoms. All Sc–N bond lengths are 2.22 Å. In the second Sc+2.62+ site, Sc+2.62+ is bonded in a distorted T-shaped geometry to three equivalent N3- atoms. All Sc–N bond lengths are 2.22 Å. N3- is bonded to six Sc+2.62+ atoms to form edge-sharing NSc6 octahedra. In each Sc3N2 sheet, there are three inequivalent Sc+2.62+ sites. In the first Sc+2.62+ site, Sc+2.62+ is bonded in a distorted T-shaped geometry to three equivalent N3- atoms. All Sc–N bond lengths are 2.18 Å. In the second Sc+2.62+ site, Sc+2.62+ is bonded to six N3- atoms to form edge-sharing ScN6 octahedra. All Sc–N bond lengths are 2.30 Å. In the third Sc+2.62+ site, Sc+2.62+ is bonded in a distorted T-shaped geometry to three equivalent N3- atoms. All Sc–N bond lengths are 2.18 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second N3- site, N3- is bonded to six Sc+2.62+ atoms to form a mixture of edge and corner-sharing NSc6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗

Materials Data on RbAl6H20N5F24 by Materials Project

RbAl2HF9Al2HF8Al2HF6(NH)2(NH4)3H2HF crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of two ammonia molecules; three ammonium molecules; one hydrofluoric acid molecule; one hydrogen molecule; one Al2HF6 sheet oriented in the (0, 0, 1) direction; one Al2HF8 sheet oriented in the (0, 0, 1) direction; and one RbAl2HF9 sheet oriented in the (0, 0, 1) direction. In the Al2HF6 sheet, there are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded in a 5-coordinate geometry to five F1- atoms. There are a spread of Al–F bond distances ranging from 1.67–1.89 Å. In the second Al3+ site, Al3+ is bonded in a distorted octahedral geometry to one H1+ and five F1- atoms. The Al–H bond length is 1.56 Å. There are a spread of Al–F bond distances ranging from 1.77–2.25 Å. H1+ is bonded in a single-bond geometry to one Al3+ atom. There are six inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Al3+ atom. In the second F1- site, F1- is bonded in a 2-coordinate geometry to two Al3+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two Al3+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Al3+ atom. In the fifth F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two Al3+ atoms. In the Al2HF8 sheet, there are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six F1- atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra tilt angles range from 6–9°. There are a spread of Al–F bond distances ranging from 1.71–2.02 Å. In the second Al3+ site, Al3+ is bonded to six F1- atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra tilt angles range from 6–9°. There are a spread of Al–F bond distances ranging from 1.70–2.01 Å. H1+ is bonded in a single-bond geometry to one F1- atom. The H–F bond length is 0.97 Å. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the second F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the third F1- site, F1- is bonded in a distorted single-bond geometry to one Al3+ and one H1+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Al3+ atom. In the fifth F1- site, F1- is bonded in a distorted single-bond geometry to one Al3+ atom. In the sixth F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the seventh F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the eighth F1- site, F1- is bonded in a single-bond geometry to one Al3+ atom. In the RbAl2HF9 sheet, Rb1+ is bonded in a 1-coordinate geometry to one F1- atom. The Rb–F bond length is 2.63 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six F1- atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra tilt angles range from 5–8°. There are a spread of Al–F bond distances ranging from 1.72–1.98 Å. In the second Al3+ site, Al3+ is bonded to six F1- atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra tilt angles range from 5–8°. There are a spread of Al–F bond distances ranging from 1.72–1.89 Å. H1+ is bonded in a linear geometry to two F1- atoms. Both H–F bond lengths are 1.13 Å. There are nine inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Al3+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Al3+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to one Rb1+ and one Al3+ atom. In the fourth F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the fifth F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the sixth F1- site, F1- is bonded in a single-bond geometry to one H1+ atom. In the seventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Al3+ and one H1+ atom. In the eighth F1- site, F1- is bonded in a linear geometry to two Al3+ atoms. In the ninth F1- site, F1- is bonded in a linear geometry to two Al3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2MoW2(SeS)2 by Materials Project

WTe2WSe2MoS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoS2 sheet oriented in the (0, 0, 1) direction; one WSe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoS2 sheet, Mo6+ is bonded to six equivalent S2- atoms to form distorted edge-sharing MoS6 pentagonal pyramids. All Mo–S bond lengths are 2.46 Å. S2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. There are three shorter (2.71 Å) and three longer (2.72 Å) W–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te4Mo2WS2 by Materials Project

WTe2MoTe2MoS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoS2 sheet oriented in the (0, 0, 1) direction; one MoTe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoS2 sheet, Mo+4.50+ is bonded to six S2- atoms to form distorted edge-sharing MoS6 pentagonal pyramids. All Mo–S bond lengths are 2.48 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Mo+4.50+ atoms. In the second S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Mo+4.50+ atoms. In the MoTe2 sheet, Mo+4.50+ is bonded to six Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. All Mo–Te bond lengths are 2.72 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WTe2 sheet, W3+ is bonded to six Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.72 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the second Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te4Mo2WSe2 by Materials Project

WTe2MoTe2MoSe2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one MoTe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo+4.50+ is bonded to six Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.58 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second Se2- site, Se2- is bonded in a distorted T-shaped geometry to three equivalent Mo+4.50+ atoms. In the MoTe2 sheet, Mo+4.50+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. All Mo–Te bond lengths are 2.72 Å. Te2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WTe2 sheet, W3+ is bonded to six Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.73 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the second Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on MoW2(Se2S)2 by Materials Project

WSe2MoSe2WS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one WS2 sheet oriented in the (0, 0, 1) direction; and one WSe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo6+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.54 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the WS2 sheet, W3+ is bonded to six S2- atoms to form distorted edge-sharing WS6 pentagonal pyramids. All W–S bond lengths are 2.44 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent W3+ atoms. In the second S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.54 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2MoW2(SeS)2 by Materials Project

WTe2MoSe2WS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one WS2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo6+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.55 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the WS2 sheet, W3+ is bonded to six S2- atoms to form distorted edge-sharing WS6 pentagonal pyramids. All W–S bond lengths are 2.46 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent W3+ atoms. In the second S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.71 Å. Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2Mo(WSe2)2 by Materials Project

WTe2WSe2MoSe2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one WSe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo6+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.57 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.72 Å. Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2MoW2(SeS)2 by Materials Project

WTe2WSe2MoS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoS2 sheet oriented in the (0, 0, 1) direction; one WSe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoS2 sheet, Mo6+ is bonded to six S2- atoms to form distorted edge-sharing MoS6 pentagonal pyramids. All Mo–S bond lengths are 2.46 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the second S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Mo6+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. There are three shorter (2.71 Å) and three longer (2.72 Å) W–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Mo2W(Se2S)2 by Materials Project

WSe2MoSe2MoS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoS2 sheet oriented in the (0, 0, 1) direction; one MoSe2 sheet oriented in the (0, 0, 1) direction; and one WSe2 sheet oriented in the (0, 0, 1) direction. In the MoS2 sheet, Mo+4.50+ is bonded to six S2- atoms to form distorted edge-sharing MoS6 pentagonal pyramids. All Mo–S bond lengths are 2.44 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Mo+4.50+ atoms. In the MoSe2 sheet, Mo+4.50+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.54 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.54 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2Mo2W(SeS)2 by Materials Project

MoTe2MoSe2WS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one MoTe2 sheet oriented in the (0, 0, 1) direction; and one WS2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo+4.50+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.55 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the MoTe2 sheet, Mo+4.50+ is bonded to six Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. There are three shorter (2.70 Å) and three longer (2.71 Å) Mo–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WS2 sheet, W3+ is bonded to six S2- atoms to form distorted edge-sharing WS6 pentagonal pyramids. All W–S bond lengths are 2.46 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent W3+ atoms. In the second S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2Mo(WS2)2 by Materials Project

WTe2WS2MoS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoS2 sheet oriented in the (0, 0, 1) direction; one WS2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoS2 sheet, Mo6+ is bonded to six S2- atoms to form distorted edge-sharing MoS6 pentagonal pyramids. All Mo–S bond lengths are 2.44 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Mo6+ atoms. In the second S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the WS2 sheet, W3+ is bonded to six equivalent S2- atoms to form distorted edge-sharing WS6 pentagonal pyramids. All W–S bond lengths are 2.45 Å. S2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.71 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2Mo2WSe4 by Materials Project

MoTe2WSe2MoSe2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one MoTe2 sheet oriented in the (0, 0, 1) direction; and one WSe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo+4.50+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the MoTe2 sheet, Mo+4.50+ is bonded to six Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. All Mo–Te bond lengths are 2.71 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.57 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te4Mo(WSe)2 by Materials Project

WTe2MoTe2WSe2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoTe2 sheet oriented in the (0, 0, 1) direction; one WSe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoTe2 sheet, Mo6+ is bonded to six Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. All Mo–Te bond lengths are 2.72 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the second Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent Mo6+ atoms. In the WSe2 sheet, W3+ is bonded to six Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.59 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the second Se2- site, Se2- is bonded in a distorted T-shaped geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.73 Å. Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2MoW2(SeS)2 by Materials Project

WTe2WSe2MoS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoS2 sheet oriented in the (0, 0, 1) direction; one WSe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoS2 sheet, Mo6+ is bonded to six S2- atoms to form distorted edge-sharing MoS6 pentagonal pyramids. All Mo–S bond lengths are 2.46 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent Mo6+ atoms. In the second S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent Mo6+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms. In the WTe2 sheet, W3+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.72 Å. Te2- is bonded in a 12-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2Mo2WSe4 by Materials Project

MoTe2WSe2MoSe2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one MoTe2 sheet oriented in the (0, 0, 1) direction; and one WSe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo+4.50+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the MoTe2 sheet, Mo+4.50+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. All Mo–Te bond lengths are 2.71 Å. Te2- is bonded in a 12-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WSe2 sheet, W3+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.57 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te2W3(SeS)2 by Materials Project

WTe2WSe2WS2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one WS2 sheet oriented in the (0, 0, 1) direction; one WSe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the WS2 sheet, W4+ is bonded to six S2- atoms to form distorted edge-sharing WS6 pentagonal pyramids. All W–S bond lengths are 2.46 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three equivalent W4+ atoms. In the second S2- site, S2- is bonded in a distorted T-shaped geometry to three equivalent W4+ atoms. In the WSe2 sheet, W4+ is bonded to six equivalent Se2- atoms to form distorted edge-sharing WSe6 pentagonal pyramids. All W–Se bond lengths are 2.56 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent W4+ atoms. In the WTe2 sheet, W4+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.71 Å. Te2- is bonded in a 12-coordinate geometry to three equivalent W4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Te4Mo2WSe2 by Materials Project

WTe2MoTe2MoSe2 is Molybdenite-derived structured and crystallizes in the trigonal P3m1 space group. The structure is two-dimensional and consists of one MoSe2 sheet oriented in the (0, 0, 1) direction; one MoTe2 sheet oriented in the (0, 0, 1) direction; and one WTe2 sheet oriented in the (0, 0, 1) direction. In the MoSe2 sheet, Mo+4.50+ is bonded to six Se2- atoms to form distorted edge-sharing MoSe6 pentagonal pyramids. All Mo–Se bond lengths are 2.58 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second Se2- site, Se2- is bonded in a distorted T-shaped geometry to three equivalent Mo+4.50+ atoms. In the MoTe2 sheet, Mo+4.50+ is bonded to six Te2- atoms to form distorted edge-sharing MoTe6 pentagonal pyramids. All Mo–Te bond lengths are 2.72 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Mo+4.50+ atoms. In the second Te2- site, Te2- is bonded in a 12-coordinate geometry to three equivalent Mo+4.50+ atoms. In the WTe2 sheet, W3+ is bonded to six equivalent Te2- atoms to form distorted edge-sharing WTe6 pentagonal pyramids. All W–Te bond lengths are 2.73 Å. Te2- is bonded in a 3-coordinate geometry to three equivalent W3+ atoms.

36 MATERIALS SCIENCE↗