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Materials Data on Li(HoS2)3 by Materials Project

HoLi(HoS2)2(S)2 crystallizes in the orthorhombic Cmmm space group. The structure is two-dimensional and consists of two holmium molecules; four hydrogen sulfide molecules; and one Li(HoS2)2 sheet oriented in the (0, 0, 1) direction. In the Li(HoS2)2 sheet, Li1+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent S+1.67- atoms. All Li–S bond lengths are 2.47 Å. Ho3+ is bonded in a linear geometry to two equivalent S+1.67- atoms. Both Ho–S bond lengths are 2.51 Å. S+1.67- is bonded in a distorted linear geometry to one Li1+ and one Ho3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on HoS2 by Materials Project

HoS2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ho3+ is bonded in a 12-coordinate geometry to twelve equivalent S+1.50- atoms. All Ho–S bond lengths are 3.23 Å. S+1.50- is bonded to six equivalent Ho3+ and six equivalent S+1.50- atoms to form a mixture of edge, face, and corner-sharing SHo6S6 cuboctahedra. All S–S bond lengths are 2.75 Å.

36 MATERIALS SCIENCE↗

Materials Data on Ca(HoS2)2 by Materials Project

Ca(HoS2)2 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight equivalent S2- atoms. There are four shorter (2.80 Å) and four longer (3.05 Å) Ca–S bond lengths. Ho3+ is bonded to eight equivalent S2- atoms to form a mixture of distorted face, edge, and corner-sharing HoS8 hexagonal bipyramids. There are a spread of Ho–S bond distances ranging from 2.74–3.01 Å. S2- is bonded in a 6-coordinate geometry to two equivalent Ca2+ and four equivalent Ho3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Yb(HoS2)2 by Materials Project

Yb(HoS2)2 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Yb2+ is bonded to eight equivalent S2- atoms to form distorted YbS8 hexagonal bipyramids that share corners with eight equivalent HoS8 hexagonal bipyramids, edges with four equivalent YbS8 hexagonal bipyramids, and faces with eight equivalent HoS8 hexagonal bipyramids. There are four shorter (2.80 Å) and four longer (3.00 Å) Yb–S bond lengths. Ho3+ is bonded to eight equivalent S2- atoms to form distorted HoS8 hexagonal bipyramids that share corners with four equivalent YbS8 hexagonal bipyramids, corners with four equivalent HoS8 hexagonal bipyramids, edges with four equivalent HoS8 hexagonal bipyramids, faces with four equivalent YbS8 hexagonal bipyramids, and faces with four equivalent HoS8 hexagonal bipyramids. There are a spread of Ho–S bond distances ranging from 2.74–2.98 Å. S2- is bonded to two equivalent Yb2+ and four equivalent Ho3+ atoms to form a mixture of distorted corner, edge, and face-sharing SYb2Ho4 octahedra. The corner-sharing octahedra tilt angles range from 17–50°.

36 MATERIALS SCIENCE↗

Materials Data on HoS2 by Materials Project

HoS2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ho3+ is bonded in a 9-coordinate geometry to nine S+1.50- atoms. There are a spread of Ho–S bond distances ranging from 2.82–2.90 Å. There are two inequivalent S+1.50- sites. In the first S+1.50- site, S+1.50- is bonded in a 8-coordinate geometry to four equivalent Ho3+ and four equivalent S+1.50- atoms. All S–S bond lengths are 2.72 Å. In the second S+1.50- site, S+1.50- is bonded to five equivalent Ho3+ atoms to form a mixture of distorted edge and corner-sharing SHo5 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on Ca(HoS2)2 by Materials Project

Ca(HoS2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ca2+ is bonded to seven S2- atoms to form distorted CaS7 pentagonal bipyramids that share corners with eight HoS6 octahedra, edges with five HoS6 octahedra, edges with two equivalent CaS7 pentagonal bipyramids, and faces with two equivalent CaS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 14–67°. There are a spread of Ca–S bond distances ranging from 2.89–3.02 Å. There are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with four equivalent CaS7 pentagonal bipyramids, edges with six HoS6 octahedra, and an edgeedge with one CaS7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 52–60°. There are a spread of Ho–S bond distances ranging from 2.70–2.81 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with four equivalent CaS7 pentagonal bipyramids, edges with four HoS6 octahedra, and edges with four equivalent CaS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 52–60°. There are a spread of Ho–S bond distances ranging from 2.70–2.78 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Ca2+ and three Ho3+ atoms to form a mixture of distorted edge and corner-sharing SCa2Ho3 trigonal bipyramids. In the second S2- site, S2- is bonded to two equivalent Ca2+ and three Ho3+ atoms to form SCa2Ho3 square pyramids that share corners with two equivalent SCa3Ho2 square pyramids, corners with two equivalent SCa2Ho3 trigonal bipyramids, edges with five SCa2Ho3 square pyramids, and edges with three equivalent SCa2Ho3 trigonal bipyramids. In the third S2- site, S2- is bonded to three equivalent Ca2+ and two equivalent Ho3+ atoms to form a mixture of edge and corner-sharing SCa3Ho2 square pyramids. In the fourth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ho3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on La4(HoS2)11 by Materials Project

La4(HoS2)11 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are six inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to seven S2- atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 40–50°. There are a spread of Ho–S bond distances ranging from 2.70–2.89 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 49–59°. There are a spread of Ho–S bond distances ranging from 2.65–2.78 Å. In the third Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four HoS6 octahedra. The corner-sharing octahedra tilt angles range from 51–63°. There are a spread of Ho–S bond distances ranging from 2.66–2.80 Å. In the fourth Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 51–63°. There are a spread of Ho–S bond distances ranging from 2.67–2.77 Å. In the fifth Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 49–59°. There are a spread of Ho–S bond distances ranging from 2.66–2.78 Å. In the sixth Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two shorter (2.73 Å) and four longer (2.74 Å) Ho–S bond lengths. There are two inequivalent La+2.75+ sites. In the first La+2.75+ site, La+2.75+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of La–S bond distances ranging from 2.94–3.07 Å. In the second La+2.75+ site, La+2.75+ is bonded in a 7-coordinate geometry to eight S2- atoms. There are a spread of La–S bond distances ranging from 2.93–3.49 Å. There are eleven inequivalent S2- sites. In the first S2- site, S2- is bonded to three Ho3+ and two equivalent La+2.75+ atoms to form distorted SLa2Ho3 trigonal bipyramids that share corners with four SLa2Ho3 trigonal bipyramids, corners with two SLaHo3 trigonal pyramids, edges with six SLa2Ho3 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the second S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ho3+ atoms. In the third S2- site, S2- is bonded in a 3-coordinate geometry to three Ho3+ and one La+2.75+ atom. In the fourth S2- site, S2- is bonded to three Ho3+ and two equivalent La+2.75+ atoms to form distorted SLa2Ho3 trigonal bipyramids that share corners with six SLa2Ho3 trigonal bipyramids, corners with two equivalent SLaHo3 trigonal pyramids, edges with two equivalent SLa2Ho3 square pyramids, edges with four SLa2Ho3 trigonal bipyramids, and an edgeedge with one SLaHo3 trigonal pyramid. In the fifth S2- site, S2- is bonded to three Ho3+ and two equivalent La+2.75+ atoms to form distorted SLa2Ho3 square pyramids that share corners with two equivalent SLa2Ho3 square pyramids, corners with four SLa3Ho2 trigonal bipyramids, edges with three SLa2Ho3 square pyramids, edges with three SLa2Ho3 trigonal bipyramids, and edges with two equivalent SLaHo3 trigonal pyramids. In the sixth S2- site, S2- is bonded to three Ho3+ and two equivalent La+2.75+ atoms to form distorted SLa2Ho3 square pyramids that share corners with four SLa2Ho3 square pyramids, corners with two equivalent SLa3Ho2 trigonal bipyramids, corners with two equivalent SLaHo3 trigonal pyramids, edges with four SLa2Ho3 square pyramids, and edges with three SLa3Ho2 trigonal bipyramids. In the seventh S2- site, S2- is bonded to two equivalent Ho3+ and three La+2.75+ atoms to form distorted SLa3Ho2 trigonal bipyramids that share corners with four SLa2Ho3 square pyramids, corners with two equivalent SLa2Ho3 trigonal bipyramids, corners with four equivalent SHo4 trigonal pyramids, edges with two SLa2Ho3 square pyramids, edges with six SLa2Ho3 trigonal bipyramids, and edges with three SLaHo3 trigonal pyramids. In the eighth S2- site, S2- is bonded to three Ho3+ and one La+2.75+ atom to form distorted SLaHo3 trigonal pyramids that share corners with two equivalent SLa2Ho3 square pyramids, corners with four SLa2Ho3 trigonal bipyramids, corners with five SLaHo3 trigonal pyramids, edges with two equivalent SLa2Ho3 square pyramids, and edges with three SLa3Ho2 trigonal bipyramids. In the ninth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ho3+ atoms. In the tenth S2- site, S2- is bonded to four Ho3+ atoms to form distorted SHo4 trigonal pyramids that share corners with five SLa2Ho3 trigonal bipyramids, corners with five SLaHo3 trigonal pyramids, edges with three SLa2Ho3 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the eleventh S2- site, S2- is bonded to two equivalent Ho3+ and three La+2.75+ atoms to form distorted SLa3Ho2 trigonal bipyramids that share corners with two equivalent SLa2Ho3 square pyramids, corners with four SLa2Ho3 trigonal bipyramids, a cornercorner with one SLaHo3 trigonal pyramid, edges with two equivalent SLa2Ho3 square pyramids, and edges with six SLa2Ho3 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on Ce(HoS2)3 by Materials Project

Ce(HoS2)3 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to seven S2- atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 39–50°. There are a spread of Ho–S bond distances ranging from 2.69–2.93 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 54–62°. There are a spread of Ho–S bond distances ranging from 2.66–2.77 Å. In the third Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four equivalent HoS6 octahedra. The corner-sharing octahedra tilt angles range from 54–62°. There are a spread of Ho–S bond distances ranging from 2.66–2.79 Å. Ce3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Ce–S bond distances ranging from 2.90–3.04 Å. There are six inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Ho3+ atoms. In the second S2- site, S2- is bonded to three Ho3+ and one Ce3+ atom to form distorted SCeHo3 trigonal pyramids that share corners with two equivalent SCe2Ho3 square pyramids, corners with four SCe2Ho3 trigonal bipyramids, corners with two equivalent SCeHo3 trigonal pyramids, edges with three equivalent SCe2Ho3 square pyramids, and edges with two equivalent SCe3Ho2 trigonal bipyramids. In the third S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ho3+ atoms. In the fourth S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Ce3+ atoms to form distorted SCe2Ho3 square pyramids that share corners with six SCe2Ho3 trigonal bipyramids, corners with two equivalent SCeHo3 trigonal pyramids, edges with four equivalent SCe2Ho3 square pyramids, edges with two SCe2Ho3 trigonal bipyramids, and edges with three equivalent SCeHo3 trigonal pyramids. In the fifth S2- site, S2- is bonded to three Ho3+ and two equivalent Ce3+ atoms to form distorted SCe2Ho3 trigonal bipyramids that share corners with two equivalent SCe2Ho3 square pyramids, corners with two equivalent SCe3Ho2 trigonal bipyramids, corners with three equivalent SCeHo3 trigonal pyramids, an edgeedge with one SCe2Ho3 square pyramid, and edges with five SCe2Ho3 trigonal bipyramids. In the sixth S2- site, S2- is bonded to two equivalent Ho3+ and three equivalent Ce3+ atoms to form distorted SCe3Ho2 trigonal bipyramids that share corners with four equivalent SCe2Ho3 square pyramids, corners with two equivalent SCe2Ho3 trigonal bipyramids, a cornercorner with one SCeHo3 trigonal pyramid, an edgeedge with one SCe2Ho3 square pyramid, edges with seven SCe2Ho3 trigonal bipyramids, and edges with two equivalent SCeHo3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on La(HoS2)3 by Materials Project

La(HoS2)3 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to seven S2- atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 39–51°. There are a spread of Ho–S bond distances ranging from 2.70–2.93 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 53–62°. There are a spread of Ho–S bond distances ranging from 2.68–2.78 Å. In the third Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four equivalent HoS6 octahedra. The corner-sharing octahedra tilt angles range from 53–62°. There are a spread of Ho–S bond distances ranging from 2.66–2.80 Å. La3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of La–S bond distances ranging from 2.94–3.08 Å. There are six inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Ho3+ atoms. In the second S2- site, S2- is bonded to three Ho3+ and one La3+ atom to form distorted SLaHo3 trigonal pyramids that share corners with two equivalent SLa2Ho3 square pyramids, corners with four SLa2Ho3 trigonal bipyramids, corners with two equivalent SLaHo3 trigonal pyramids, edges with three equivalent SLa2Ho3 square pyramids, and edges with two equivalent SLa3Ho2 trigonal bipyramids. In the third S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ho3+ atoms. In the fourth S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent La3+ atoms to form distorted SLa2Ho3 square pyramids that share corners with six SLa2Ho3 trigonal bipyramids, corners with two equivalent SLaHo3 trigonal pyramids, edges with four equivalent SLa2Ho3 square pyramids, edges with two SLa2Ho3 trigonal bipyramids, and edges with three equivalent SLaHo3 trigonal pyramids. In the fifth S2- site, S2- is bonded to three Ho3+ and two equivalent La3+ atoms to form distorted SLa2Ho3 trigonal bipyramids that share corners with two equivalent SLa2Ho3 square pyramids, corners with two equivalent SLa3Ho2 trigonal bipyramids, corners with three equivalent SLaHo3 trigonal pyramids, an edgeedge with one SLa2Ho3 square pyramid, and edges with five SLa2Ho3 trigonal bipyramids. In the sixth S2- site, S2- is bonded to two equivalent Ho3+ and three equivalent La3+ atoms to form distorted SLa3Ho2 trigonal bipyramids that share corners with four equivalent SLa2Ho3 square pyramids, corners with two equivalent SLa2Ho3 trigonal bipyramids, a cornercorner with one SLaHo3 trigonal pyramid, an edgeedge with one SLa2Ho3 square pyramid, edges with seven SLa2Ho3 trigonal bipyramids, and edges with two equivalent SLaHo3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Nd(HoS2)3 by Materials Project

Nd(HoS2)3 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to seven S2- atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 38–51°. There are a spread of Ho–S bond distances ranging from 2.69–2.92 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 57–60°. There are a spread of Ho–S bond distances ranging from 2.66–2.77 Å. In the third Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four equivalent HoS6 octahedra. The corner-sharing octahedra tilt angles range from 57–60°. There are a spread of Ho–S bond distances ranging from 2.65–2.78 Å. Nd3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Nd–S bond distances ranging from 2.89–3.03 Å. There are six inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Ho3+ atoms. In the second S2- site, S2- is bonded to three Ho3+ and one Nd3+ atom to form distorted SNdHo3 trigonal pyramids that share corners with two equivalent SNd2Ho3 square pyramids, corners with four SNd2Ho3 trigonal bipyramids, corners with four SNdHo3 trigonal pyramids, edges with three equivalent SNd2Ho3 square pyramids, and edges with two equivalent SNd3Ho2 trigonal bipyramids. In the third S2- site, S2- is bonded to four Ho3+ atoms to form distorted SHo4 trigonal pyramids that share corners with three equivalent SNd2Ho3 square pyramids, corners with four equivalent SNd2Ho3 trigonal bipyramids, corners with four SNdHo3 trigonal pyramids, an edgeedge with one SNd2Ho3 trigonal bipyramid, and edges with two equivalent SHo4 trigonal pyramids. In the fourth S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Nd3+ atoms to form distorted SNd2Ho3 square pyramids that share corners with six SNd2Ho3 trigonal bipyramids, corners with five SNdHo3 trigonal pyramids, edges with four equivalent SNd2Ho3 square pyramids, edges with two SNd2Ho3 trigonal bipyramids, and edges with three equivalent SNdHo3 trigonal pyramids. In the fifth S2- site, S2- is bonded to three Ho3+ and two equivalent Nd3+ atoms to form distorted SNd2Ho3 trigonal bipyramids that share corners with two equivalent SNd2Ho3 square pyramids, corners with two equivalent SNd3Ho2 trigonal bipyramids, corners with seven SNdHo3 trigonal pyramids, an edgeedge with one SNd2Ho3 square pyramid, edges with five SNd2Ho3 trigonal bipyramids, and an edgeedge with one SHo4 trigonal pyramid. In the sixth S2- site, S2- is bonded to two equivalent Ho3+ and three equivalent Nd3+ atoms to form distorted SNd3Ho2 trigonal bipyramids that share corners with four equivalent SNd2Ho3 square pyramids, corners with two equivalent SNd2Ho3 trigonal bipyramids, a cornercorner with one SNdHo3 trigonal pyramid, an edgeedge with one SNd2Ho3 square pyramid, edges with seven SNd2Ho3 trigonal bipyramids, and edges with two equivalent SNdHo3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Eu(HoS2)2 by Materials Project

Eu(HoS2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–65°. There are a spread of Ho–S bond distances ranging from 2.69–2.75 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–65°. There are a spread of Ho–S bond distances ranging from 2.67–2.76 Å. Eu2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Eu–S bond distances ranging from 3.04–3.29 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to three Ho3+ and two equivalent Eu2+ atoms. In the second S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Eu2+ atoms to form a mixture of distorted corner and edge-sharing SEu2Ho3 square pyramids. In the third S2- site, S2- is bonded in a 5-coordinate geometry to three Ho3+ and two equivalent Eu2+ atoms. In the fourth S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Eu2+ atoms to form a mixture of distorted corner and edge-sharing SEu2Ho3 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on Pr4(HoS2)11 by Materials Project

Pr4(HoS2)11 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are six inequivalent Ho sites. In the first Ho site, Ho is bonded to seven S atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 39–50°. There are a spread of Ho–S bond distances ranging from 2.70–2.88 Å. In the second Ho site, Ho is bonded to six S atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–59°. There are a spread of Ho–S bond distances ranging from 2.64–2.77 Å. In the third Ho site, Ho is bonded to six S atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four HoS6 octahedra. The corner-sharing octahedra tilt angles range from 52–62°. There are a spread of Ho–S bond distances ranging from 2.66–2.79 Å. In the fourth Ho site, Ho is bonded to six S atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 52–62°. There are a spread of Ho–S bond distances ranging from 2.66–2.77 Å. In the fifth Ho site, Ho is bonded to six S atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–59°. There are a spread of Ho–S bond distances ranging from 2.65–2.77 Å. In the sixth Ho site, Ho is bonded to six S atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two shorter (2.72 Å) and four longer (2.73 Å) Ho–S bond lengths. There are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 8-coordinate geometry to eight S atoms. There are a spread of Pr–S bond distances ranging from 2.93–3.06 Å. In the second Pr site, Pr is bonded in a 7-coordinate geometry to eight S atoms. There are a spread of Pr–S bond distances ranging from 2.91–3.47 Å. There are eleven inequivalent S sites. In the first S site, S is bonded to three Ho and two equivalent Pr atoms to form SPr2Ho3 trigonal bipyramids that share corners with two equivalent SPr2Ho3 square pyramids, corners with two equivalent SPr3Ho2 trigonal bipyramids, corners with two SPrHo3 trigonal pyramids, an edgeedge with one SPr2Ho3 square pyramid, edges with five SPr2Ho3 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the second S site, S is bonded in a rectangular see-saw-like geometry to four Ho atoms. In the third S site, S is bonded in a 4-coordinate geometry to three Ho and one Pr atom. In the fourth S site, S is bonded to three Ho and two equivalent Pr atoms to form SPr2Ho3 square pyramids that share corners with six SPr2Ho3 trigonal bipyramids, corners with two equivalent SPrHo3 trigonal pyramids, edges with four SPr2Ho3 square pyramids, edges with two SPr2Ho3 trigonal bipyramids, and an edgeedge with one SPrHo3 trigonal pyramid. In the fifth S site, S is bonded to three Ho and two equivalent Pr atoms to form SPr2Ho3 square pyramids that share corners with two equivalent SPr2Ho3 square pyramids, corners with four SPr3Ho2 trigonal bipyramids, edges with five SPr2Ho3 square pyramids, an edgeedge with one SPr3Ho2 trigonal bipyramid, and edges with two equivalent SPrHo3 trigonal pyramids. In the sixth S site, S is bonded to three Ho and two equivalent Pr atoms to form SPr2Ho3 square pyramids that share corners with four SPr2Ho3 square pyramids, corners with two equivalent SPr3Ho2 trigonal bipyramids, corners with two equivalent SPrHo3 trigonal pyramids, edges with four SPr2Ho3 square pyramids, and edges with three SPr3Ho2 trigonal bipyramids. In the seventh S site, S is bonded to two equivalent Ho and three Pr atoms to form distorted SPr3Ho2 trigonal bipyramids that share corners with six SPr2Ho3 square pyramids, corners with four equivalent SHo4 trigonal pyramids, edges with two SPr2Ho3 square pyramids, edges with six SPr2Ho3 trigonal bipyramids, and edges with three SPrHo3 trigonal pyramids. In the eighth S site, S is bonded to three Ho and one Pr atom to form SPrHo3 trigonal pyramids that share corners with four SPr2Ho3 square pyramids, corners with two SPr2Ho3 trigonal bipyramids, corners with five SPrHo3 trigonal pyramids, edges with three SPr2Ho3 square pyramids, and edges with two equivalent SPr3Ho2 trigonal bipyramids. In the ninth S site, S is bonded in a rectangular see-saw-like geometry to four Ho atoms. In the tenth S site, S is bonded to four Ho atoms to form distorted SHo4 trigonal pyramids that share corners with five SPr2Ho3 trigonal bipyramids, corners with five SPrHo3 trigonal pyramids, edges with three SPr2Ho3 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the eleventh S site, S is bonded to two equivalent Ho and three Pr atoms to form distorted SPr3Ho2 trigonal bipyramids that share corners with four SPr2Ho3 square pyramids, corners with two equivalent SPr2Ho3 trigonal bipyramids, a cornercorner with one SPrHo3 trigonal pyramid, edges with three SPr2Ho3 square pyramids, and edges with five SPr2Ho3 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on Ce4(HoS2)11 by Materials Project

Ce4(HoS2)11 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are six inequivalent Ho sites. In the first Ho site, Ho is bonded to seven S atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 39–50°. There are a spread of Ho–S bond distances ranging from 2.70–2.88 Å. In the second Ho site, Ho is bonded to six S atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–59°. There are a spread of Ho–S bond distances ranging from 2.66–2.78 Å. In the third Ho site, Ho is bonded to six S atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four HoS6 octahedra. The corner-sharing octahedra tilt angles range from 53–62°. There are a spread of Ho–S bond distances ranging from 2.65–2.79 Å. In the fourth Ho site, Ho is bonded to six S atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 53–62°. There are a spread of Ho–S bond distances ranging from 2.66–2.79 Å. In the fifth Ho site, Ho is bonded to six S atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–59°. There are a spread of Ho–S bond distances ranging from 2.66–2.78 Å. In the sixth Ho site, Ho is bonded to six S atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Ho–S bond lengths are 2.74 Å. There are two inequivalent Ce sites. In the first Ce site, Ce is bonded in a 8-coordinate geometry to eight S atoms. There are a spread of Ce–S bond distances ranging from 2.91–3.05 Å. In the second Ce site, Ce is bonded in a 8-coordinate geometry to eight S atoms. There are a spread of Ce–S bond distances ranging from 2.89–3.36 Å. There are eleven inequivalent S sites. In the first S site, S is bonded to three Ho and two equivalent Ce atoms to form SCe2Ho3 trigonal bipyramids that share corners with two equivalent SCe2Ho3 square pyramids, corners with two equivalent SCe3Ho2 trigonal bipyramids, corners with two SCeHo3 trigonal pyramids, an edgeedge with one SCe2Ho3 square pyramid, edges with five SCe2Ho3 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the second S site, S is bonded in a rectangular see-saw-like geometry to four Ho atoms. In the third S site, S is bonded in a 4-coordinate geometry to three Ho and one Ce atom. In the fourth S site, S is bonded to three Ho and two equivalent Ce atoms to form SCe2Ho3 square pyramids that share corners with six SCe2Ho3 trigonal bipyramids, corners with three SCeHo3 trigonal pyramids, edges with four SCe2Ho3 square pyramids, edges with two SCe2Ho3 trigonal bipyramids, and an edgeedge with one SCeHo3 trigonal pyramid. In the fifth S site, S is bonded to three Ho and two equivalent Ce atoms to form SCe2Ho3 square pyramids that share corners with two equivalent SCe2Ho3 square pyramids, corners with four SCe3Ho2 trigonal bipyramids, corners with two equivalent SHo4 trigonal pyramids, edges with five SCe2Ho3 square pyramids, an edgeedge with one SCe3Ho2 trigonal bipyramid, and edges with two equivalent SCeHo3 trigonal pyramids. In the sixth S site, S is bonded to three Ho and two equivalent Ce atoms to form SCe2Ho3 square pyramids that share corners with four SCe2Ho3 square pyramids, corners with two equivalent SCe3Ho2 trigonal bipyramids, corners with four SCeHo3 trigonal pyramids, edges with four SCe2Ho3 square pyramids, edges with three SCe3Ho2 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the seventh S site, S is bonded to two equivalent Ho and three Ce atoms to form distorted SCe3Ho2 trigonal bipyramids that share corners with six SCe2Ho3 square pyramids, corners with four equivalent SHo4 trigonal pyramids, edges with two SCe2Ho3 square pyramids, edges with six SCe2Ho3 trigonal bipyramids, and edges with three SCeHo3 trigonal pyramids. In the eighth S site, S is bonded to three Ho and one Ce atom to form SCeHo3 trigonal pyramids that share corners with four SCe2Ho3 square pyramids, corners with two SCe2Ho3 trigonal bipyramids, corners with five SCeHo3 trigonal pyramids, edges with three SCe2Ho3 square pyramids, and edges with two equivalent SCe3Ho2 trigonal bipyramids. In the ninth S site, S is bonded to four Ho atoms to form distorted SHo4 trigonal pyramids that share corners with five SCe2Ho3 square pyramids, corners with two equivalent SCe3Ho2 trigonal bipyramids, corners with three equivalent SHo4 trigonal pyramids, edges with two equivalent SCe2Ho3 square pyramids, and an edgeedge with one SCe3Ho2 trigonal bipyramid. In the tenth S site, S is bonded to four Ho atoms to form distorted SHo4 trigonal pyramids that share corners with five SCe2Ho3 trigonal bipyramids, corners with five SCeHo3 trigonal pyramids, edges with three SCe2Ho3 trigonal bipyramids, and edges with two equivalent SHo4 trigonal pyramids. In the eleventh S site, S is bonded to two equivalent Ho and three Ce atoms to form distorted SCe3Ho2 trigonal bipyramids that share corners with four SCe2Ho3 square pyramids, corners with two equivalent SCe2Ho3 trigonal bipyramids, corners with three SCeHo3 trigonal pyramids, edges with three SCe2Ho3 square pyramids, edges with five SCe2Ho3 trigonal bipyramids, and an edgeedge with one SHo4 trigonal pyramid.

36 MATERIALS SCIENCE↗

Materials Data on Ba(HoS2)2 by Materials Project

Ba(HoS2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Ba–S bond distances ranging from 3.21–3.39 Å. There are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–60°. There are one shorter (2.69 Å) and five longer (2.76 Å) Ho–S bond lengths. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–60°. There are a spread of Ho–S bond distances ranging from 2.71–2.77 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Ba2+ and three Ho3+ atoms. In the second S2- site, S2- is bonded to two equivalent Ba2+ and three equivalent Ho3+ atoms to form a mixture of distorted edge and corner-sharing SBa2Ho3 square pyramids. In the third S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Ba2+ and three Ho3+ atoms. In the fourth S2- site, S2- is bonded to two equivalent Ba2+ and three equivalent Ho3+ atoms to form a mixture of distorted edge and corner-sharing SBa2Ho3 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on Pr(HoS2)3 by Materials Project

Pr(HoS2)3 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to seven S2- atoms to form distorted HoS7 pentagonal bipyramids that share corners with three HoS6 octahedra, edges with two equivalent HoS6 octahedra, and edges with four equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 38–51°. There are a spread of Ho–S bond distances ranging from 2.69–2.92 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, a cornercorner with one HoS7 pentagonal bipyramid, edges with four equivalent HoS6 octahedra, and edges with two equivalent HoS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 55–61°. There are a spread of Ho–S bond distances ranging from 2.67–2.77 Å. In the third Ho3+ site, Ho3+ is bonded to six S2- atoms to form HoS6 octahedra that share corners with three equivalent HoS6 octahedra, corners with two equivalent HoS7 pentagonal bipyramids, and edges with four equivalent HoS6 octahedra. The corner-sharing octahedra tilt angles range from 55–61°. There are a spread of Ho–S bond distances ranging from 2.65–2.79 Å. Pr3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Pr–S bond distances ranging from 2.91–3.05 Å. There are six inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Ho3+ atoms. In the second S2- site, S2- is bonded to three Ho3+ and one Pr3+ atom to form distorted SPrHo3 trigonal pyramids that share corners with two equivalent SPr2Ho3 square pyramids, corners with four SPr2Ho3 trigonal bipyramids, corners with two equivalent SPrHo3 trigonal pyramids, edges with three equivalent SPr2Ho3 square pyramids, and edges with two equivalent SPr3Ho2 trigonal bipyramids. In the third S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Ho3+ atoms. In the fourth S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Pr3+ atoms to form distorted SPr2Ho3 square pyramids that share corners with six SPr2Ho3 trigonal bipyramids, corners with two equivalent SPrHo3 trigonal pyramids, edges with four equivalent SPr2Ho3 square pyramids, edges with two SPr2Ho3 trigonal bipyramids, and edges with three equivalent SPrHo3 trigonal pyramids. In the fifth S2- site, S2- is bonded to three Ho3+ and two equivalent Pr3+ atoms to form distorted SPr2Ho3 trigonal bipyramids that share corners with two equivalent SPr2Ho3 square pyramids, corners with two equivalent SPr3Ho2 trigonal bipyramids, corners with three equivalent SPrHo3 trigonal pyramids, an edgeedge with one SPr2Ho3 square pyramid, and edges with five SPr2Ho3 trigonal bipyramids. In the sixth S2- site, S2- is bonded to two equivalent Ho3+ and three equivalent Pr3+ atoms to form distorted SPr3Ho2 trigonal bipyramids that share corners with four equivalent SPr2Ho3 square pyramids, corners with two equivalent SPr2Ho3 trigonal bipyramids, a cornercorner with one SPrHo3 trigonal pyramid, an edgeedge with one SPr2Ho3 square pyramid, edges with seven SPr2Ho3 trigonal bipyramids, and edges with two equivalent SPrHo3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Sr(HoS2)2 by Materials Project

Sr(HoS2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Sr–S bond distances ranging from 3.09–3.29 Å. There are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–63°. There are a spread of Ho–S bond distances ranging from 2.70–2.76 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–63°. There are a spread of Ho–S bond distances ranging from 2.68–2.76 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Sr2+ and three Ho3+ atoms. In the second S2- site, S2- is bonded to two equivalent Sr2+ and three equivalent Ho3+ atoms to form a mixture of distorted edge and corner-sharing SSr2Ho3 square pyramids. In the third S2- site, S2- is bonded to two equivalent Sr2+ and three Ho3+ atoms to form a mixture of distorted edge and corner-sharing SSr2Ho3 trigonal bipyramids. In the fourth S2- site, S2- is bonded to two equivalent Sr2+ and three equivalent Ho3+ atoms to form a mixture of distorted edge and corner-sharing SSr2Ho3 trigonal bipyramids.

36 MATERIALS SCIENCE↗