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Results for “Mn-O-Re”

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on MnReO4 by Materials Project

ReMnO4 is zeta iron carbide-derived structured and crystallizes in the monoclinic P2/c space group. The structure is three-dimensional. Re6+ is bonded to six O2- atoms to form distorted ReO6 octahedra that share corners with eight equivalent MnO6 octahedra and edges with two equivalent ReO6 octahedra. The corner-sharing octahedra tilt angles range from 43–58°. There are a spread of Re–O bond distances ranging from 1.83–2.07 Å. Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with eight equivalent ReO6 octahedra and edges with two equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 43–58°. There are a spread of Mn–O bond distances ranging from 2.16–2.23 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Re6+ and one Mn2+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Re6+ and two equivalent Mn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn(ReO4)2 by Materials Project

Mn(ReO4)2 crystallizes in the trigonal P-3 space group. The structure is two-dimensional and consists of one Mn(ReO4)2 sheet oriented in the (0, 0, 1) direction. Re7+ is bonded to four O2- atoms to form ReO4 tetrahedra that share corners with three equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 15°. There is one shorter (1.73 Å) and three longer (1.76 Å) Re–O bond length. Mn2+ is bonded to six equivalent O2- atoms to form MnO6 octahedra that share corners with six equivalent ReO4 tetrahedra. All Mn–O bond lengths are 2.16 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Re7+ atom. In the second O2- site, O2- is bonded in a linear geometry to one Re7+ and one Mn2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn(ReO4)2 by Materials Project

Mn(ReO4)2 crystallizes in the trigonal P-3 space group. The structure is two-dimensional and consists of one Mn(ReO4)2 sheet oriented in the (0, 0, 1) direction. Re7+ is bonded to four O2- atoms to form ReO4 tetrahedra that share corners with three equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 16°. There is one shorter (1.73 Å) and three longer (1.76 Å) Re–O bond length. Mn2+ is bonded to six equivalent O2- atoms to form MnO6 octahedra that share corners with six equivalent ReO4 tetrahedra. All Mn–O bond lengths are 2.16 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Re7+ atom. In the second O2- site, O2- is bonded in a distorted linear geometry to one Re7+ and one Mn2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn3ReO6 by Materials Project

Mn2MnReO6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Re6+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with six equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 39–45°. There are a spread of Re–O bond distances ranging from 1.93–1.98 Å. There are two inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are three shorter (2.15 Å) and one longer (2.21 Å) Mn–O bond lengths. In the second Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six equivalent ReO6 octahedra. The corner-sharing octahedra tilt angles range from 39–45°. There are a spread of Mn–O bond distances ranging from 2.12–2.22 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Re6+ and two Mn2+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Re6+ and two Mn2+ atoms. In the third O2- site, O2- is bonded to one Re6+ and three Mn2+ atoms to form distorted corner-sharing OMn3Re tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn(ReO5)2 by Materials Project

Mn(ReO5)2 crystallizes in the monoclinic C2/m space group. The structure is one-dimensional and consists of two Mn(ReO5)2 ribbons oriented in the (0, 1, 0) direction. Re+6.50+ is bonded to four O2- atoms to form ReO4 tetrahedra that share corners with two equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 25°. There is two shorter (1.73 Å) and two longer (1.78 Å) Re–O bond length. Mn7+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with four equivalent ReO4 tetrahedra. There are two shorter (1.95 Å) and four longer (2.06 Å) Mn–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Re+6.50+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Re+6.50+ and one Mn7+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one Mn7+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Re+6.50+ atom.

36 MATERIALS SCIENCE↗