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Manganese antimony diselenide iodide, MnSbSe2I
Olivier Tougait1, James A Ibers, Arthur Mar
1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA. olivier.tougait@univ-rennes1.fr
Summary
The study reveals the crystal structure of manganese antimony selenoiodide (MnSbSe2I), detailing its layered arrangement of octahedra and trigonal pyramids. This unique structure is a distorted version of a known related material.
Area of Science:
- Solid State Chemistry
- Crystallography
- Materials Science
Background:
- Understanding the structural characteristics of novel inorganic compounds is crucial for materials discovery.
- Layered materials with mixed anion (chalcogenide and halide) systems offer unique properties.
Purpose of the Study:
- To elucidate the detailed crystal structure of manganese antimony selenoiodide (MnSbSe2I).
- To compare the determined structure with known related structure types.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed to determine the atomic arrangement.
- Structural comparison with the orthorhombic UFeS3 structure type was performed.
Main Results:
- MnSbSe2I exhibits a layered structure parallel to the bc plane.
- The layers comprise edge- and corner-sharing MnSe6/2 and MnSe2/2I4/2 octahedra.
- Antimony atoms form SbSe3 trigonal pyramids between the layers, with off-center placement.
- The monoclinic MnSbSe2I structure is identified as a distorted variant of the orthorhombic UFeS3 structure.
Conclusions:
- The detailed crystal structure of MnSbSe2I has been determined.
- The compound's structure is a distorted derivative of the UFeS3 type, highlighting structural flexibility in related materials.