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DOE OSTI2020

Materials Data on Sr2IrO4 by Materials Project

Sr2IrO4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.80 Å. Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (1.98 Å) and two longer (2.08 Å) Ir–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to five equivalent Sr2+ and one Ir4+ atom to form distorted OSr5Ir octahedra that share corners with seventeen OSr5Ir octahedra, edges with eight equivalent OSr5Ir octahedra, and faces with four equivalent OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–56°. In the second O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form distorted OSr4Ir2 octahedra that share corners with fourteen OSr5Ir octahedra, edges with two equivalent OSr4Ir2 octahedra, and faces with eight OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 0–56°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrIrO3 by Materials Project

SrIrO3 is Orthorhombic Perovskite-like structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.62–2.88 Å. In the second Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.47–3.03 Å. There are two inequivalent Ir4+ sites. In the first Ir4+ site, Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedra tilt angles range from 29–33°. There are four shorter (2.01 Å) and two longer (2.02 Å) Ir–O bond lengths. In the second Ir4+ site, Ir4+ is bonded to six O2- atoms to form a mixture of corner and face-sharing IrO6 octahedra. The corner-sharing octahedra tilt angles range from 29–33°. There are a spread of Ir–O bond distances ranging from 2.00–2.09 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted L-shaped geometry to four Sr2+ and two equivalent Ir4+ atoms. In the second O2- site, O2- is bonded to four Sr2+ and two equivalent Ir4+ atoms to form a mixture of distorted corner and face-sharing OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 3–62°. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and two Ir4+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to three equivalent Sr2+ and two Ir4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2IrO4 by Materials Project

Sr2IrO4 crystallizes in the tetragonal I4_1/acd space group. The structure is three-dimensional. Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–2.77 Å. Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles are 27°. There are four shorter (2.01 Å) and two longer (2.09 Å) Ir–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+ and two equivalent Ir4+ atoms. In the second O2- site, O2- is bonded to five equivalent Sr2+ and one Ir4+ atom to form a mixture of edge and corner-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 0–5°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2IrO4 by Materials Project

Sr2IrO4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are sixteen inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to six O2- atoms to form distorted SrO6 pentagonal pyramids that share a cornercorner with one OSr4O trigonal bipyramid and an edgeedge with one SrO7 pentagonal bipyramid. There are a spread of Sr–O bond distances ranging from 2.46–2.72 Å. In the second Sr2+ site, Sr2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sr–O bond distances ranging from 2.45–2.67 Å. In the third Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.50–3.20 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.97 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–2.85 Å. In the sixth Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sr–O bond distances ranging from 2.38–2.87 Å. In the seventh Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–2.82 Å. In the eighth Sr2+ site, Sr2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–3.09 Å. In the ninth Sr2+ site, Sr2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–3.07 Å. In the tenth Sr2+ site, Sr2+ is bonded to seven O2- atoms to form distorted SrO7 pentagonal bipyramids that share a cornercorner with one OSr4O trigonal bipyramid and an edgeedge with one SrO6 pentagonal pyramid. There are a spread of Sr–O bond distances ranging from 2.41–2.80 Å. In the eleventh Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to six O2- atoms. There are a spread of Sr–O bond distances ranging from 2.37–2.77 Å. In the twelfth Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–2.92 Å. In the thirteenth Sr2+ site, Sr2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Sr–O bond distances ranging from 2.47–2.52 Å. In the fourteenth Sr2+ site, Sr2+ is bonded in a distorted pentagonal bipyramidal geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.39–2.80 Å. In the fifteenth Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sr–O bond distances ranging from 2.32–2.88 Å. In the sixteenth Sr2+ site, Sr2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sr–O bond distances ranging from 2.38–2.74 Å. There are eight inequivalent Ir4+ sites. In the first Ir4+ site, Ir4+ is bonded in a square co-planar geometry to four O2- atoms. There are a spread of Ir–O bond distances ranging from 1.83–2.02 Å. In the second Ir4+ site, Ir4+ is bonded in a T-shaped geometry to three O2- atoms. There are a spread of Ir–O bond distances ranging from 1.90–2.02 Å. In the third Ir4+ site, Ir4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.86 Å) and one longer (1.92 Å) Ir–O bond length. In the fourth Ir4+ site, Ir4+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Ir–O bond distances ranging from 1.90–1.99 Å. In the fifth Ir4+ site, Ir4+ is bonded in a T-shaped geometry to three O2- atoms. There are a spread of Ir–O bond distances ranging from 1.89–2.08 Å. In the sixth Ir4+ site, Ir4+ is bonded in a T-shaped geometry to three O2- atoms. There are a spread of Ir–O bond distances ranging from 1.95–2.13 Å. In the seventh Ir4+ site, Ir4+ is bonded in a T-shaped geometry to three O2- atoms. There are a spread of Ir–O bond distances ranging from 1.81–2.00 Å. In the eighth Ir4+ site, Ir4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.84 Å) and one longer (1.93 Å) Ir–O bond length. There are thirty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three Sr2+ and two Ir4+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one O2- atom. The O–O bond length is 1.49 Å. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Ir4+ atom. In the fourth O2- site, O2- is bonded in a distorted linear geometry to one Sr2+ and two Ir4+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two Sr2+ and one Ir4+ atom. In the sixth O2- site, O2- is bonded to four Sr2+ atoms to form distorted OSr4 trigonal pyramids that share a cornercorner with one OSr4O trigonal bipyramid and an edgeedge with one OSr3Ir tetrahedra. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one O2- atom. The O–O bond length is 1.51 Å. In the eighth O2- site, O2- is bonded to three Sr2+ and one Ir4+ atom to form distorted OSr3Ir trigonal pyramids that share a cornercorner with one OSr4O trigonal bipyramid, an edgeedge with one OSr3Ir tetrahedra, and an edgeedge with one OSr3Ir trigonal pyramid. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Ir4+ atom. In the tenth O2- site, O2- is bonded to three Sr2+ and one Ir4+ atom to form distorted OSr3Ir tetrahedra that share a cornercorner with one OSr3Ir tetrahedra, corners with two equivalent OSr4O trigonal bipyramids, and an edgeedge with one OSr4 trigonal pyramid. In the eleventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Sr2+ and one Ir4+ atom. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to two Sr2+ and two Ir4+ atoms. In the thirteenth O2- site, O2- is bonded to three Sr2+ and one Ir4+ atom to form distorted OSr3Ir tetrahedra that share a cornercorner with one OSr3Ir tetrahedra, a cornercorner with one OSr4O trigonal bipyramid, a cornercorner with one OSr3Ir trigonal pyramid, and an edgeedge with one OSr3Ir trigonal pyramid. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one O2- atom. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one O2- atom. The O–O bond length is 1.50 Å. In the sixteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Sr2+ and one Ir4+ atom. In the seventeenth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one O2- atom. In the eighteenth O2- site, O2- is bonded to four Sr2+ and one O2- atom to form distorted OSr4O trigonal bipyramids that share a cornercorner with one SrO7 pentagonal bipyramid, a cornercorner with one SrO6 pentagonal pyramid, corners with three OSr3Ir tetrahedra, and corners with three OSr3Ir trigonal pyramids. The O–O bond length is 1.51 Å. In the nineteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one O2- atom. The O–O bond length is 1.50 Å. In the twentieth O2- site, O2- is bonded in a 1-coordinate geometry to one Sr2+ and one Ir4+ atom. In the twenty-first O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one O2- atom. In the twenty-second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Sr2+ and one Ir4+ atom. In the twenty-third O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one Ir4+ atom. In the twenty-fourth O2- site, O2- is bonded in a 5-coordinate geometry to five Sr2+ atoms. In the twenty-fifth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Ir4+ atom. In the twenty-sixth O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one O2- atom. In the twenty-seventh O2- site, O2- is bonded in a 1-coordinate geometry to two Sr2+ and one Ir4+ atom. In the twenty-eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+ and two Ir4+ atoms. In the twenty-ninth O2- site, O2- is bonded in a 3-coordinate geometry to two Sr2+ and one Ir4+ atom. In the thirtieth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Sr2+ and one O2- atom. In the thirty-first O2- site, O2- is bonded to three Sr2+ and one Ir4+ atom to form OSr3Ir trigonal pyramids that share a cornercorner with one OSr3Ir tetrahedra, a cornercorner with one OSr4O trigonal bipyramid, and an edgeedge with one OSr3Ir trigonal pyramid. In the thirty-second O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Ir4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr5Ir3O11 by Materials Project

Sr5Ir3O11 is (La,Ba)CuO4-like structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are five inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.45–2.87 Å. In the second Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, faces with four equivalent SrO12 cuboctahedra, and faces with eight IrO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.66–3.02 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.87 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.87 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.87 Å. There are three inequivalent Ir4+ sites. In the first Ir4+ site, Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles are 10°. There are a spread of Ir–O bond distances ranging from 1.99–2.08 Å. In the second Ir4+ site, Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with five IrO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–14°. There are a spread of Ir–O bond distances ranging from 1.99–2.06 Å. In the third Ir4+ site, Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with five IrO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–14°. There are a spread of Ir–O bond distances ranging from 1.99–2.06 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two equivalent Ir4+ atoms. In the second O2- site, O2- is bonded to five Sr2+ and one Ir4+ atom to form a mixture of distorted corner and edge-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 1–9°. In the third O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two equivalent Ir4+ atoms. In the fourth O2- site, O2- is bonded to five Sr2+ and one Ir4+ atom to form a mixture of distorted corner and edge-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 1–9°. In the fifth O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two equivalent Ir4+ atoms. In the sixth O2- site, O2- is bonded to five Sr2+ and one Ir4+ atom to form a mixture of distorted corner and edge-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 1–10°. In the seventh O2- site, O2- is bonded to four equivalent Sr2+ and two Ir4+ atoms to form distorted OSr4Ir2 octahedra that share corners with six OSr5Ir octahedra and edges with four equivalent OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the eighth O2- site, O2- is bonded to five Sr2+ and one Ir4+ atom to form a mixture of distorted corner and edge-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 1–10°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr3Ir2O7 by Materials Project

Sr3Ir2O7 crystallizes in the orthorhombic Ccce space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to eight O2- atoms. There are four shorter (2.53 Å) and four longer (2.79 Å) Sr–O bond lengths. In the second Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–2.79 Å. Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedra tilt angles range from 0–28°. There are a spread of Ir–O bond distances ranging from 2.03–2.06 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to five equivalent Sr2+ and one Ir4+ atom to form a mixture of distorted edge and corner-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 0–6°. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+ and two equivalent Ir4+ atoms. In the third O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form distorted OSr4Ir2 octahedra that share corners with six OSr5Ir octahedra and edges with four equivalent OSr4Ir2 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr5(IrO3)6 by Materials Project

Sr5(IrO3)6 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a distorted hexagonal planar geometry to six equivalent O2- atoms. All Sr–O bond lengths are 2.51 Å. In the second Sr2+ site, Sr2+ is bonded to six equivalent O2- atoms to form SrO6 octahedra that share corners with twelve equivalent IrO6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Sr–O bond lengths are 3.27 Å. Ir+4.33+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with two equivalent SrO6 octahedra, corners with four equivalent IrO6 octahedra, and an edgeedge with one IrO6 octahedra. The corner-sharing octahedra tilt angles range from 46–54°. There are a spread of Ir–O bond distances ranging from 1.99–2.04 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+ and two equivalent Ir+4.33+ atoms. In the second O2- site, O2- is bonded in an L-shaped geometry to one Sr2+ and two equivalent Ir+4.33+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr4IrO6 by Materials Project

Sr4IrO6 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. All Sr–O bond lengths are 2.48 Å. In the second Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are a spread of Sr–O bond distances ranging from 2.62–2.81 Å. Ir4+ is bonded in an octahedral geometry to six equivalent O2- atoms. All Ir–O bond lengths are 2.08 Å. O2- is bonded to five Sr2+ and one Ir4+ atom to form a mixture of distorted face, edge, and corner-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 0–63°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrIrO3 by Materials Project

SrIrO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sr2+ is bonded to twelve equivalent O2- atoms to form SrO12 cuboctahedra that share corners with twelve equivalent SrO12 cuboctahedra, faces with six equivalent SrO12 cuboctahedra, and faces with eight equivalent IrO6 octahedra. All Sr–O bond lengths are 2.83 Å. Ir4+ is bonded to six equivalent O2- atoms to form IrO6 octahedra that share corners with six equivalent IrO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ir–O bond lengths are 2.00 Å. O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form a mixture of distorted edge, face, and corner-sharing OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrIrO3 by Materials Project

SrIrO3 is Orthorhombic Perovskite-like structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.50–2.85 Å. In the second Sr2+ site, Sr2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–2.71 Å. There are two inequivalent Ir4+ sites. In the first Ir4+ site, Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedra tilt angles range from 29–34°. There are a spread of Ir–O bond distances ranging from 2.01–2.03 Å. In the second Ir4+ site, Ir4+ is bonded to six O2- atoms to form a mixture of corner and face-sharing IrO6 octahedra. The corner-sharing octahedra tilt angles range from 29–34°. There are a spread of Ir–O bond distances ranging from 2.03–2.09 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+ and two Ir4+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+ and two Ir4+ atoms. In the third O2- site, O2- is bonded to four Sr2+ and two equivalent Ir4+ atoms to form distorted corner-sharing OSr4Ir2 octahedra. The corner-sharing octahedral tilt angles are 6°. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to three Sr2+ and two equivalent Ir4+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+ and two Ir4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr5Ir3O11 by Materials Project

Sr5Ir3O11 is (La,Ba)CuO4-like structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.45–2.87 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.89 Å. In the third Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, faces with four equivalent SrO12 cuboctahedra, and faces with eight equivalent IrO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.68–3.01 Å. There are two inequivalent Ir4+ sites. In the first Ir4+ site, Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles are 5°. There are a spread of Ir–O bond distances ranging from 1.98–2.08 Å. In the second Ir4+ site, Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with five equivalent IrO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–12°. There are a spread of Ir–O bond distances ranging from 1.98–2.06 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form a mixture of distorted edge and corner-sharing OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the second O2- site, O2- is bonded to five Sr2+ and one Ir4+ atom to form distorted OSr5Ir octahedra that share corners with thirteen OSr5Ir octahedra, edges with eight OSr5Ir octahedra, and faces with four equivalent OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 1–57°. In the third O2- site, O2- is bonded to five Sr2+ and one Ir4+ atom to form distorted OSr5Ir octahedra that share corners with nine OSr4Ir2 octahedra and edges with eight OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 1–47°. In the fourth O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form distorted OSr4Ir2 octahedra that share corners with fourteen OSr5Ir octahedra, edges with two equivalent OSr4Ir2 octahedra, and faces with eight OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 5–57°. In the fifth O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two equivalent Ir4+ atoms. In the sixth O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two equivalent Ir4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr4Ir3O10 by Materials Project

Sr4Ir3O10 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.46–2.84 Å. In the second Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with eight equivalent SrO12 cuboctahedra, faces with five equivalent SrO12 cuboctahedra, and faces with eight IrO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.80–2.82 Å. There are two inequivalent Ir4+ sites. In the first Ir4+ site, Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with five IrO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are a spread of Ir–O bond distances ranging from 2.00–2.09 Å. In the second Ir4+ site, Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with six IrO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (1.99 Å) and two longer (2.01 Å) Ir–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to five equivalent Sr2+ and one Ir4+ atom to form distorted OSr5Ir octahedra that share corners with seventeen OSr4Ir2 octahedra, edges with eight equivalent OSr5Ir octahedra, and faces with four equivalent OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–54°. In the second O2- site, O2- is bonded to four Sr2+ and two equivalent Ir4+ atoms to form a mixture of distorted corner, edge, and face-sharing OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. In the third O2- site, O2- is bonded to four equivalent Sr2+ and two Ir4+ atoms to form a mixture of distorted corner, edge, and face-sharing OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. In the fourth O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form a mixture of distorted corner, edge, and face-sharing OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr3Ir2O7 by Materials Project

Sr3Ir2O7 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, faces with four equivalent SrO12 cuboctahedra, and faces with eight equivalent IrO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.64–3.07 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.47–2.91 Å. Ir4+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with five equivalent IrO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–16°. There are a spread of Ir–O bond distances ranging from 2.00–2.04 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to five equivalent Sr2+ and one Ir4+ atom to form a mixture of distorted corner and edge-sharing OSr5Ir octahedra. The corner-sharing octahedra tilt angles range from 1–10°. In the second O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Ir4+ atoms to form distorted OSr4Ir2 octahedra that share corners with six OSr5Ir octahedra and edges with four equivalent OSr4Ir2 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the third O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+ and two equivalent Ir4+ atoms.

36 MATERIALS SCIENCE↗