Synthesis and crystal structure of a new quaternary thioantimonate, Na9Gd5Sb8S26

Sunju Park; Sung Jin Kim

doi:10.1006/jssc.2001.9299

Synthesis and crystal structure of a new quaternary thioantimonate, Na₉Gd₅Sb₈S₂₆

Sunju Park, Sung Jin Kim

Chemistry & Nanoscience

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

24 Scopus citations

Abstract

The first Na-containing quaternary rare-earth thioantimonate, Na₉Gd₅Sb₈S₂₆, was synthesized from the reaction of Gd metal, Sb, and S in Na₂S flux at 750°C. Black plate-shaped crystals were obtained and their crystal structure was determined by the single-crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma (No. 62) with a unit cell of a = 11.406(3) Å, b = 23.765(2) Å, c = 16.923(5) Å, and Z = 4. Na₉Gd₅Sb₈S₂₆ has a complex three-dimensional structure that consists of SbS₃, SbS₄, GdS₆, and GdS₇ units. In the structure, three crystallographically different Gd atoms form a staircase-shaped building block, where two Gd atoms share disulfide ions, S₂^2-. The formula of the compound can be described as (Na⁺)₉(Gd³⁺)₅(Sb³⁺) ₈(S^2-)₂₂(S₂^2-) ₂. Measurement of the optically diffuse reflectance indicates that Na₉Gd₅Sb₈S₂₆ is a semiconductor with a band gap of 1.63 eV.

Original language	English
Pages (from-to)	129-134
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	161
Issue number	1
DOIs	https://doi.org/10.1006/jssc.2001.9299
State	Published - 2001

Keywords

Band gap
Crystal structure
Disulfide ion
NaGdSbS
Thioantimonate

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10.1006/jssc.2001.9299

Cite this

@article{f6ed58945a104194860873e62a514d6d,

title = "Synthesis and crystal structure of a new quaternary thioantimonate, Na9Gd5Sb8S26",

abstract = "The first Na-containing quaternary rare-earth thioantimonate, Na9Gd5Sb8S26, was synthesized from the reaction of Gd metal, Sb, and S in Na2S flux at 750°C. Black plate-shaped crystals were obtained and their crystal structure was determined by the single-crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma (No. 62) with a unit cell of a = 11.406(3) {\AA}, b = 23.765(2) {\AA}, c = 16.923(5) {\AA}, and Z = 4. Na9Gd5Sb8S26 has a complex three-dimensional structure that consists of SbS3, SbS4, GdS6, and GdS7 units. In the structure, three crystallographically different Gd atoms form a staircase-shaped building block, where two Gd atoms share disulfide ions, S22-. The formula of the compound can be described as (Na+)9(Gd3+)5(Sb3+) 8(S2-)22(S22-) 2. Measurement of the optically diffuse reflectance indicates that Na9Gd5Sb8S26 is a semiconductor with a band gap of 1.63 eV.",

keywords = "Band gap, Crystal structure, Disulfide ion, NaGdSbS, Thioantimonate",

author = "Sunju Park and Kim, {Sung Jin}",

note = "Funding Information: The authors express their thanks to Prof. Y. B. Park for permitting the use of the Shimadzu UV-3101PC spectrophotometer. This work is supported by Grant 2000-1-12200-002-3 from the Basic Research Program of the Korean Science & Engineering Foundation.",

year = "2001",

doi = "10.1006/jssc.2001.9299",

language = "English",

volume = "161",

pages = "129--134",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Synthesis and crystal structure of a new quaternary thioantimonate, Na9Gd5Sb8S26

AU - Park, Sunju

AU - Kim, Sung Jin

N1 - Funding Information: The authors express their thanks to Prof. Y. B. Park for permitting the use of the Shimadzu UV-3101PC spectrophotometer. This work is supported by Grant 2000-1-12200-002-3 from the Basic Research Program of the Korean Science & Engineering Foundation.

PY - 2001

Y1 - 2001

N2 - The first Na-containing quaternary rare-earth thioantimonate, Na9Gd5Sb8S26, was synthesized from the reaction of Gd metal, Sb, and S in Na2S flux at 750°C. Black plate-shaped crystals were obtained and their crystal structure was determined by the single-crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma (No. 62) with a unit cell of a = 11.406(3) Å, b = 23.765(2) Å, c = 16.923(5) Å, and Z = 4. Na9Gd5Sb8S26 has a complex three-dimensional structure that consists of SbS3, SbS4, GdS6, and GdS7 units. In the structure, three crystallographically different Gd atoms form a staircase-shaped building block, where two Gd atoms share disulfide ions, S22-. The formula of the compound can be described as (Na+)9(Gd3+)5(Sb3+) 8(S2-)22(S22-) 2. Measurement of the optically diffuse reflectance indicates that Na9Gd5Sb8S26 is a semiconductor with a band gap of 1.63 eV.

AB - The first Na-containing quaternary rare-earth thioantimonate, Na9Gd5Sb8S26, was synthesized from the reaction of Gd metal, Sb, and S in Na2S flux at 750°C. Black plate-shaped crystals were obtained and their crystal structure was determined by the single-crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma (No. 62) with a unit cell of a = 11.406(3) Å, b = 23.765(2) Å, c = 16.923(5) Å, and Z = 4. Na9Gd5Sb8S26 has a complex three-dimensional structure that consists of SbS3, SbS4, GdS6, and GdS7 units. In the structure, three crystallographically different Gd atoms form a staircase-shaped building block, where two Gd atoms share disulfide ions, S22-. The formula of the compound can be described as (Na+)9(Gd3+)5(Sb3+) 8(S2-)22(S22-) 2. Measurement of the optically diffuse reflectance indicates that Na9Gd5Sb8S26 is a semiconductor with a band gap of 1.63 eV.

KW - Band gap

KW - Crystal structure

KW - Disulfide ion

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