New strontium and rare earth-based mixed niobium misfit sulfides

Alexander Yu Grippa; Sven Lidin; Gunnar Svensson; Dmitry P. Rupasov; Nellie R. Khasanova; Oleg G. D'yachenko; Evgeny V. Antipov

doi:10.1016/S1293-2558(03)00023-2

New strontium and rare earth-based mixed niobium misfit sulfides

Alexander Yu Grippa, Sven Lidin, Gunnar Svensson, Dmitry P. Rupasov, Nellie R. Khasanova, Oleg G. D'yachenko, Evgeny V. Antipov

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

Abstract

New niobium-based misfit sulfides (Ln_1/3Sr_2/3S)_1.5]_1.15 NbS₂ (Ln = Sm, Tb) have been synthesized from a mixture of SrS, Ln₂S₃, Nb(m), and S in evacuated and sealed silica tubes by annealing at 1000 °C for 144 h under a sulfur partial pressure of 49.3 kPa. The compounds have been characterized by EDX analysis, X-ray single crystal and powder diffraction, electron diffraction, and magnetic susceptibility measurements. Both sulfides have misfit structures with orthorhombic symmetry for the (Ln_1/3Sr_2/3S)_1.5 (Ln = Sm, Tb) and NbS₂ subsystems. The lattice parameters for the different subsystems are: for the Sm-based sulfide [(SM_1/3Sr_2/3S)_1.51]: a 5.7953(9) Å, b = 5.8007(5) Å, c = 14.957(2) Å and [NbS₂]: a = 3.3420(7) Å, b = 5.8008(5) Å, c = 14.955(2) Å, and for the Tb-based sulfide [(Th_1/3Sr_2/3S)_1.5]: a = 5.769(2) Å, b = 5.7766(7) Å, c = 14.906(2) Å and [NbS₂]: a = 3.340(1) Å, b = 5.7769(8) Å, c = 14.905(2) Å. The [(SM_1/3Sr_2/3S)_1.15NbS₂ crystal structure has been refined from X-ray single crystal data. It belongs to the 1.5Q/1H homologue type where the (Sm_1/3Sr_2/3S)_1.5 part is a three-atoms-thick slab. Sr-cations are mainly located at the exterior of the slab whereas Sm preferably occupy the positions at its center. Both compounds exhibit paramagnetic temperature dependence down to 2 K.

Original language	English
Pages (from-to)	495-502
Number of pages	8
Journal	Solid State Sciences
Volume	5
Issue number	3
DOIs	https://doi.org/10.1016/S1293-2558(03)00023-2
Publication status	Published - 2003 Mar 1
Externally published	Yes

Free keywords

Crystal structure
Electron diffraction
Niobium-based misfit sulfides
Synthesis

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10.1016/S1293-2558(03)00023-2

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@article{d765953925ba4727a13090bd96a639ec,

title = "New strontium and rare earth-based mixed niobium misfit sulfides",

abstract = "New niobium-based misfit sulfides (Ln1/3Sr2/3S)1.5]1.15 NbS2 (Ln = Sm, Tb) have been synthesized from a mixture of SrS, Ln2S3, Nb(m), and S in evacuated and sealed silica tubes by annealing at 1000 °C for 144 h under a sulfur partial pressure of 49.3 kPa. The compounds have been characterized by EDX analysis, X-ray single crystal and powder diffraction, electron diffraction, and magnetic susceptibility measurements. Both sulfides have misfit structures with orthorhombic symmetry for the (Ln1/3Sr2/3S)1.5 (Ln = Sm, Tb) and NbS2 subsystems. The lattice parameters for the different subsystems are: for the Sm-based sulfide [(SM1/3Sr2/3S)1.51]: a 5.7953(9) {\AA}, b = 5.8007(5) {\AA}, c = 14.957(2) {\AA} and [NbS2]: a = 3.3420(7) {\AA}, b = 5.8008(5) {\AA}, c = 14.955(2) {\AA}, and for the Tb-based sulfide [(Th1/3Sr2/3S)1.5]: a = 5.769(2) {\AA}, b = 5.7766(7) {\AA}, c = 14.906(2) {\AA} and [NbS2]: a = 3.340(1) {\AA}, b = 5.7769(8) {\AA}, c = 14.905(2) {\AA}. The [(SM1/3Sr2/3S)1.15NbS2 crystal structure has been refined from X-ray single crystal data. It belongs to the 1.5Q/1H homologue type where the (Sm1/3Sr2/3S)1.5 part is a three-atoms-thick slab. Sr-cations are mainly located at the exterior of the slab whereas Sm preferably occupy the positions at its center. Both compounds exhibit paramagnetic temperature dependence down to 2 K.",

keywords = "Crystal structure, Electron diffraction, Niobium-based misfit sulfides, Synthesis",

author = "Grippa, {Alexander Yu} and Sven Lidin and Gunnar Svensson and Rupasov, {Dmitry P.} and Khasanova, {Nellie R.} and D'yachenko, {Oleg G.} and Antipov, {Evgeny V.}",

year = "2003",

month = mar,

day = "1",

doi = "10.1016/S1293-2558(03)00023-2",

language = "English",

volume = "5",

pages = "495--502",

journal = "Solid State Sciences",

issn = "1293-2558",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - New strontium and rare earth-based mixed niobium misfit sulfides

AU - Grippa, Alexander Yu

AU - Lidin, Sven

AU - Svensson, Gunnar

AU - Rupasov, Dmitry P.

AU - Khasanova, Nellie R.

AU - D'yachenko, Oleg G.

AU - Antipov, Evgeny V.

PY - 2003/3/1

Y1 - 2003/3/1

N2 - New niobium-based misfit sulfides (Ln1/3Sr2/3S)1.5]1.15 NbS2 (Ln = Sm, Tb) have been synthesized from a mixture of SrS, Ln2S3, Nb(m), and S in evacuated and sealed silica tubes by annealing at 1000 °C for 144 h under a sulfur partial pressure of 49.3 kPa. The compounds have been characterized by EDX analysis, X-ray single crystal and powder diffraction, electron diffraction, and magnetic susceptibility measurements. Both sulfides have misfit structures with orthorhombic symmetry for the (Ln1/3Sr2/3S)1.5 (Ln = Sm, Tb) and NbS2 subsystems. The lattice parameters for the different subsystems are: for the Sm-based sulfide [(SM1/3Sr2/3S)1.51]: a 5.7953(9) Å, b = 5.8007(5) Å, c = 14.957(2) Å and [NbS2]: a = 3.3420(7) Å, b = 5.8008(5) Å, c = 14.955(2) Å, and for the Tb-based sulfide [(Th1/3Sr2/3S)1.5]: a = 5.769(2) Å, b = 5.7766(7) Å, c = 14.906(2) Å and [NbS2]: a = 3.340(1) Å, b = 5.7769(8) Å, c = 14.905(2) Å. The [(SM1/3Sr2/3S)1.15NbS2 crystal structure has been refined from X-ray single crystal data. It belongs to the 1.5Q/1H homologue type where the (Sm1/3Sr2/3S)1.5 part is a three-atoms-thick slab. Sr-cations are mainly located at the exterior of the slab whereas Sm preferably occupy the positions at its center. Both compounds exhibit paramagnetic temperature dependence down to 2 K.

AB - New niobium-based misfit sulfides (Ln1/3Sr2/3S)1.5]1.15 NbS2 (Ln = Sm, Tb) have been synthesized from a mixture of SrS, Ln2S3, Nb(m), and S in evacuated and sealed silica tubes by annealing at 1000 °C for 144 h under a sulfur partial pressure of 49.3 kPa. The compounds have been characterized by EDX analysis, X-ray single crystal and powder diffraction, electron diffraction, and magnetic susceptibility measurements. Both sulfides have misfit structures with orthorhombic symmetry for the (Ln1/3Sr2/3S)1.5 (Ln = Sm, Tb) and NbS2 subsystems. The lattice parameters for the different subsystems are: for the Sm-based sulfide [(SM1/3Sr2/3S)1.51]: a 5.7953(9) Å, b = 5.8007(5) Å, c = 14.957(2) Å and [NbS2]: a = 3.3420(7) Å, b = 5.8008(5) Å, c = 14.955(2) Å, and for the Tb-based sulfide [(Th1/3Sr2/3S)1.5]: a = 5.769(2) Å, b = 5.7766(7) Å, c = 14.906(2) Å and [NbS2]: a = 3.340(1) Å, b = 5.7769(8) Å, c = 14.905(2) Å. The [(SM1/3Sr2/3S)1.15NbS2 crystal structure has been refined from X-ray single crystal data. It belongs to the 1.5Q/1H homologue type where the (Sm1/3Sr2/3S)1.5 part is a three-atoms-thick slab. Sr-cations are mainly located at the exterior of the slab whereas Sm preferably occupy the positions at its center. Both compounds exhibit paramagnetic temperature dependence down to 2 K.

KW - Crystal structure

KW - Electron diffraction

KW - Niobium-based misfit sulfides

KW - Synthesis

U2 - 10.1016/S1293-2558(03)00023-2

DO - 10.1016/S1293-2558(03)00023-2

M3 - Article

AN - SCOPUS:0038709724

SN - 1293-2558

VL - 5

SP - 495

EP - 502

JO - Solid State Sciences

JF - Solid State Sciences

IS - 3

ER -

New strontium and rare earth-based mixed niobium misfit sulfides

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