Synthesis and Structure of a New Quaternary Rare-Earth Sulfide, La6MgGe2S14, and the Related Compound La6MgSi2S14

Robert L. Gitzendanner; Courtney M. Spencer; Francis J. Disalvo; Michael A. Pell; James A. Ibers

doi:10.1006/jssc.1997.7421

Synthesis and Structure of a New Quaternary Rare-Earth Sulfide, La₆MgGe₂S₁₄, and the Related Compound La₆MgSi₂S₁₄

Robert L. Gitzendanner^*, Courtney M. Spencer, Francis J. Disalvo, Michael A. Pell, James A. Ibers

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

A new quaternary rare-earth sulfide has been isolated and identified. Crystals of La₆MgGe₂S₁₄, as well as of the previously identified La₆MgSi₂S₁₄have been grown from a mixed binary-halide eutectic flux. They both crystallize in the hexagonal space groupC⁶₆-P6₃, withZ=1. The crystal structures of these compounds have been determined by single-crystal X-ray diffraction techniques. Crystal data are La₆MgGe₂S₁₄-a=10.367(1) Å,c=5.814(1) Å (T=298 K),V=541.09(8) Å³,R_w(F²)=0.050,R₁(onF)=0.018; La₆MgSi₂S₁₄-a=10.363(2) Å,c=5.742(1) Å (T=298 K),V=534.1(2) Å³,R_w(F²)=0.058, andR₁(onF)=0.022. Structurally, these compounds belong to theLn₆M₂M′₂S₁₄family (Ln=rare-earth,M=first-row transition metal or main-group metal,M′=main-group metal). Their structures are characterized by one-dimensional chains ofMS₆face-sharing octahedra running parallel to the 6₃axis, surrounded by isolatedM′S₄tetrahedra aligned along the three-fold axes.

Original language	English (US)
Pages (from-to)	399-404
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	131
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1997.7421
State	Published - Jul 1997

Funding

The research at Cornell University was supported by DOE Grant DE-FG02-87ER45298 and at Northwestern University by NSF Grant DMR 91-14934. RLG and CMS thank John Hunt of the Cornell M.S.C. Electron Microscopy Labs for his assistance with the microprobe measurements, Emil Lobkovsky of the Cornell Department of Chemistry Crystallography Facility for his assistance with some of the single crystal X-ray work, Simon J. Clarke for his help with some of the single crystal work, Randall J. Lane for his assistance with the non-linear optical studies, and Donna Smith for her EDX work at Northwestern University.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1006/jssc.1997.7421

Cite this

@article{8a5e221328b345009e2cf027cb2ca1d0,

title = "Synthesis and Structure of a New Quaternary Rare-Earth Sulfide, La6MgGe2S14, and the Related Compound La6MgSi2S14",

abstract = "A new quaternary rare-earth sulfide has been isolated and identified. Crystals of La6MgGe2S14, as well as of the previously identified La6MgSi2S14have been grown from a mixed binary-halide eutectic flux. They both crystallize in the hexagonal space groupC66-P63, withZ=1. The crystal structures of these compounds have been determined by single-crystal X-ray diffraction techniques. Crystal data are La6MgGe2S14-a=10.367(1) {\AA},c=5.814(1) {\AA} (T=298 K),V=541.09(8) {\AA}3,Rw(F2)=0.050,R1(onF)=0.018; La6MgSi2S14-a=10.363(2) {\AA},c=5.742(1) {\AA} (T=298 K),V=534.1(2) {\AA}3,Rw(F2)=0.058, andR1(onF)=0.022. Structurally, these compounds belong to theLn6M2M′2S14family (Ln=rare-earth,M=first-row transition metal or main-group metal,M′=main-group metal). Their structures are characterized by one-dimensional chains ofMS6face-sharing octahedra running parallel to the 63axis, surrounded by isolatedM′S4tetrahedra aligned along the three-fold axes.",

author = "Gitzendanner, {Robert L.} and Spencer, {Courtney M.} and Disalvo, {Francis J.} and Pell, {Michael A.} and Ibers, {James A.}",

note = "Funding Information: The research at Cornell University was supported by DOE Grant DE-FG02-87ER45298 and at Northwestern University by NSF Grant DMR 91-14934. RLG and CMS thank John Hunt of the Cornell M.S.C. Electron Microscopy Labs for his assistance with the microprobe measurements, Emil Lobkovsky of the Cornell Department of Chemistry Crystallography Facility for his assistance with some of the single crystal X-ray work, Simon J. Clarke for his help with some of the single crystal work, Randall J. Lane for his assistance with the non-linear optical studies, and Donna Smith for her EDX work at Northwestern University.",

year = "1997",

month = jul,

doi = "10.1006/jssc.1997.7421",

language = "English (US)",

volume = "131",

pages = "399--404",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - Synthesis and Structure of a New Quaternary Rare-Earth Sulfide, La6MgGe2S14, and the Related Compound La6MgSi2S14

AU - Gitzendanner, Robert L.

AU - Spencer, Courtney M.

AU - Disalvo, Francis J.

AU - Pell, Michael A.

AU - Ibers, James A.

N1 - Funding Information: The research at Cornell University was supported by DOE Grant DE-FG02-87ER45298 and at Northwestern University by NSF Grant DMR 91-14934. RLG and CMS thank John Hunt of the Cornell M.S.C. Electron Microscopy Labs for his assistance with the microprobe measurements, Emil Lobkovsky of the Cornell Department of Chemistry Crystallography Facility for his assistance with some of the single crystal X-ray work, Simon J. Clarke for his help with some of the single crystal work, Randall J. Lane for his assistance with the non-linear optical studies, and Donna Smith for her EDX work at Northwestern University.

PY - 1997/7

Y1 - 1997/7

N2 - A new quaternary rare-earth sulfide has been isolated and identified. Crystals of La6MgGe2S14, as well as of the previously identified La6MgSi2S14have been grown from a mixed binary-halide eutectic flux. They both crystallize in the hexagonal space groupC66-P63, withZ=1. The crystal structures of these compounds have been determined by single-crystal X-ray diffraction techniques. Crystal data are La6MgGe2S14-a=10.367(1) Å,c=5.814(1) Å (T=298 K),V=541.09(8) Å3,Rw(F2)=0.050,R1(onF)=0.018; La6MgSi2S14-a=10.363(2) Å,c=5.742(1) Å (T=298 K),V=534.1(2) Å3,Rw(F2)=0.058, andR1(onF)=0.022. Structurally, these compounds belong to theLn6M2M′2S14family (Ln=rare-earth,M=first-row transition metal or main-group metal,M′=main-group metal). Their structures are characterized by one-dimensional chains ofMS6face-sharing octahedra running parallel to the 63axis, surrounded by isolatedM′S4tetrahedra aligned along the three-fold axes.

AB - A new quaternary rare-earth sulfide has been isolated and identified. Crystals of La6MgGe2S14, as well as of the previously identified La6MgSi2S14have been grown from a mixed binary-halide eutectic flux. They both crystallize in the hexagonal space groupC66-P63, withZ=1. The crystal structures of these compounds have been determined by single-crystal X-ray diffraction techniques. Crystal data are La6MgGe2S14-a=10.367(1) Å,c=5.814(1) Å (T=298 K),V=541.09(8) Å3,Rw(F2)=0.050,R1(onF)=0.018; La6MgSi2S14-a=10.363(2) Å,c=5.742(1) Å (T=298 K),V=534.1(2) Å3,Rw(F2)=0.058, andR1(onF)=0.022. Structurally, these compounds belong to theLn6M2M′2S14family (Ln=rare-earth,M=first-row transition metal or main-group metal,M′=main-group metal). Their structures are characterized by one-dimensional chains ofMS6face-sharing octahedra running parallel to the 63axis, surrounded by isolatedM′S4tetrahedra aligned along the three-fold axes.

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