Syntheses and structures of the new quaternary compounds Ba4Nd2Cd3Se10 and Ba4Ln2Cd3S10 (Ln = Sm, Gd, Tb)

Yuting Yang; James A. Ibers

doi:10.1006/jssc.1999.8561

Syntheses and structures of the new quaternary compounds Ba₄Nd₂Cd₃Se₁₀ and Ba₄Ln₂Cd₃S₁₀ (Ln = Sm, Gd, Tb)

Yuting Yang^*, James A. Ibers

^*Corresponding author for this work

Chemistry

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

17 Scopus citations

Abstract

The compounds Ba₄Nd₂Cd₃Se₁₀ and Ba₄Ln₂Cd₃S₁₀ (Ln = Sm, Gd, Tb) have been synthesized at 1173 K with the use of a BaBr₂/KBr eutectic flux. These isostructural compounds crystallize as racemic twins in space group Cmc2¹, of the orthorhombic system in cells of (Ln, Q, a, b, c (Å), T (K)): Nd, Se, 4.3340(9), 18.667(4), 27.376(6), 115; Sm, S, 4.1907(8), 17.931(4), 26.594(5), 153; Gd, S, 4.1726(4), 17.928(2), 26.638(3), 153; Tb, S, 4.1643(8), 17.916(4), 26.581(5), 153. The corresponding R₁ indices for the refined structures are 0.053, 0.029, 0.032, and 0.030. The structure comprises [Ln₂Cd₃Q₁₀ ]^4- layers interconnected by Ba atoms. There are LnQ₆ octahedra and severely distorted CdQ₄ tetrahedra in the structure. Ba₄Tb₂Cd₃S₁₀, which is paramagnetic, obeys the Curie-Weiss law and has an effective magnetic moment of 9.94(3) μ(B). A band gap of 3.0 eV for this material was deduced from its diffuse reflectance spectrum. (C) 2000 Academic Press.

Original language	English (US)
Pages (from-to)	384-390
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	149
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1999.8561
State	Published - 2000

Funding

Use was made of the scanning electron microscope and magnetic susceptibility facilities supported by the National Science Foundation through the Northwestern University Materials Research Center, Grant DMR96-32472. This research was supported by the National Science Foundation through Grant DMR 97-09351. We thank Dr. Mian Zhong Lin, in the Department of Physics, and Dr. Saman Shafaie, in the Department of Chemistry, of Northwestern University for their help.

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.1999.8561

Cite this

@article{fbbea03eaea34a1ba5730606f9b30363,

title = "Syntheses and structures of the new quaternary compounds Ba4Nd2Cd3Se10 and Ba4Ln2Cd3S10 (Ln = Sm, Gd, Tb)",

abstract = "The compounds Ba4Nd2Cd3Se10 and Ba4Ln2Cd3S10 (Ln = Sm, Gd, Tb) have been synthesized at 1173 K with the use of a BaBr2/KBr eutectic flux. These isostructural compounds crystallize as racemic twins in space group Cmc21, of the orthorhombic system in cells of (Ln, Q, a, b, c ({\AA}), T (K)): Nd, Se, 4.3340(9), 18.667(4), 27.376(6), 115; Sm, S, 4.1907(8), 17.931(4), 26.594(5), 153; Gd, S, 4.1726(4), 17.928(2), 26.638(3), 153; Tb, S, 4.1643(8), 17.916(4), 26.581(5), 153. The corresponding R1 indices for the refined structures are 0.053, 0.029, 0.032, and 0.030. The structure comprises [Ln2Cd3Q10 ]4- layers interconnected by Ba atoms. There are LnQ6 octahedra and severely distorted CdQ4 tetrahedra in the structure. Ba4Tb2Cd3S10, which is paramagnetic, obeys the Curie-Weiss law and has an effective magnetic moment of 9.94(3) μ(B). A band gap of 3.0 eV for this material was deduced from its diffuse reflectance spectrum. (C) 2000 Academic Press.",

author = "Yuting Yang and Ibers, {James A.}",

note = "Funding Information: Use was made of the scanning electron microscope and magnetic susceptibility facilities supported by the National Science Foundation through the Northwestern University Materials Research Center, Grant DMR96-32472. This research was supported by the National Science Foundation through Grant DMR 97-09351. We thank Dr. Mian Zhong Lin, in the Department of Physics, and Dr. Saman Shafaie, in the Department of Chemistry, of Northwestern University for their help.",

year = "2000",

doi = "10.1006/jssc.1999.8561",

language = "English (US)",

volume = "149",

pages = "384--390",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - Syntheses and structures of the new quaternary compounds Ba4Nd2Cd3Se10 and Ba4Ln2Cd3S10 (Ln = Sm, Gd, Tb)

AU - Yang, Yuting

AU - Ibers, James A.

N1 - Funding Information: Use was made of the scanning electron microscope and magnetic susceptibility facilities supported by the National Science Foundation through the Northwestern University Materials Research Center, Grant DMR96-32472. This research was supported by the National Science Foundation through Grant DMR 97-09351. We thank Dr. Mian Zhong Lin, in the Department of Physics, and Dr. Saman Shafaie, in the Department of Chemistry, of Northwestern University for their help.

PY - 2000

Y1 - 2000

N2 - The compounds Ba4Nd2Cd3Se10 and Ba4Ln2Cd3S10 (Ln = Sm, Gd, Tb) have been synthesized at 1173 K with the use of a BaBr2/KBr eutectic flux. These isostructural compounds crystallize as racemic twins in space group Cmc21, of the orthorhombic system in cells of (Ln, Q, a, b, c (Å), T (K)): Nd, Se, 4.3340(9), 18.667(4), 27.376(6), 115; Sm, S, 4.1907(8), 17.931(4), 26.594(5), 153; Gd, S, 4.1726(4), 17.928(2), 26.638(3), 153; Tb, S, 4.1643(8), 17.916(4), 26.581(5), 153. The corresponding R1 indices for the refined structures are 0.053, 0.029, 0.032, and 0.030. The structure comprises [Ln2Cd3Q10 ]4- layers interconnected by Ba atoms. There are LnQ6 octahedra and severely distorted CdQ4 tetrahedra in the structure. Ba4Tb2Cd3S10, which is paramagnetic, obeys the Curie-Weiss law and has an effective magnetic moment of 9.94(3) μ(B). A band gap of 3.0 eV for this material was deduced from its diffuse reflectance spectrum. (C) 2000 Academic Press.

AB - The compounds Ba4Nd2Cd3Se10 and Ba4Ln2Cd3S10 (Ln = Sm, Gd, Tb) have been synthesized at 1173 K with the use of a BaBr2/KBr eutectic flux. These isostructural compounds crystallize as racemic twins in space group Cmc21, of the orthorhombic system in cells of (Ln, Q, a, b, c (Å), T (K)): Nd, Se, 4.3340(9), 18.667(4), 27.376(6), 115; Sm, S, 4.1907(8), 17.931(4), 26.594(5), 153; Gd, S, 4.1726(4), 17.928(2), 26.638(3), 153; Tb, S, 4.1643(8), 17.916(4), 26.581(5), 153. The corresponding R1 indices for the refined structures are 0.053, 0.029, 0.032, and 0.030. The structure comprises [Ln2Cd3Q10 ]4- layers interconnected by Ba atoms. There are LnQ6 octahedra and severely distorted CdQ4 tetrahedra in the structure. Ba4Tb2Cd3S10, which is paramagnetic, obeys the Curie-Weiss law and has an effective magnetic moment of 9.94(3) μ(B). A band gap of 3.0 eV for this material was deduced from its diffuse reflectance spectrum. (C) 2000 Academic Press.

UR - http://www.scopus.com/inward/record.url?scp=0033660140&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033660140&partnerID=8YFLogxK

U2 - 10.1006/jssc.1999.8561

DO - 10.1006/jssc.1999.8561

M3 - Article

AN - SCOPUS:0033660140

SN - 0022-4596

VL - 149

SP - 384

EP - 390

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 2

ER -