Crystal structure and magnetic properties of K2CoV2O7

Hamdi Ben Yahia; Rachid Essehli; Ilias Belharouak; Etienne Gaudin

doi:10.1016/j.materresbull.2015.06.038

Crystal structure and magnetic properties of K₂CoV₂O₇

Hamdi Ben Yahia, Rachid Essehli, Ilias Belharouak, Etienne Gaudin

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

6 Scopus citations

Abstract

The new compound K₂CoV₂O₇ has been synthesized by a solid state reaction route. Its crystal structure has been determined using powder X-ray diffraction data (PXRD). The compound K₂CoV₂O₇ crystallizes with the melilite-type structure with the tetragonal unit cell parameters a = 8.4574(1), c = 5.5729(1) Å and the space group P4-2₁m. The structure consists of [CoV₂O₇]^2- layers perpendicular to the c axis separated by K⁺ layers. The [CoV₂O₇]^2- layers consist of corner-sharing CoO₄ tetrahedra and V₂O₇ pyrovanadate units, the linkage of these tetrahedra forming five-membered rings. The K⁺ cations occupy distorted square antiprisms of oxygen atoms. The magnetic susceptibility of K₂CoV₂O₇ follows the Curie law χT = C with an effective magnetic moment μ_eff = 4.71 μ_B.

Original language	English
Pages (from-to)	7-10
Number of pages	4
Journal	Materials Research Bulletin
Volume	71
DOIs	https://doi.org/10.1016/j.materresbull.2015.06.038
State	Published - Jul 9 2015
Externally published	Yes

Keywords

Crystal structure
Inorganic compounds
Layered compounds
Magnetic properties
X-ray diffraction

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10.1016/j.materresbull.2015.06.038

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title = "Crystal structure and magnetic properties of K2CoV2O7",

abstract = "The new compound K2CoV2O7 has been synthesized by a solid state reaction route. Its crystal structure has been determined using powder X-ray diffraction data (PXRD). The compound K2CoV2O7 crystallizes with the melilite-type structure with the tetragonal unit cell parameters a = 8.4574(1), c = 5.5729(1) {\AA} and the space group P4-21m. The structure consists of [CoV2O7]2- layers perpendicular to the c axis separated by K+ layers. The [CoV2O7]2- layers consist of corner-sharing CoO4 tetrahedra and V2O7 pyrovanadate units, the linkage of these tetrahedra forming five-membered rings. The K+ cations occupy distorted square antiprisms of oxygen atoms. The magnetic susceptibility of K2CoV2O7 follows the Curie law χT = C with an effective magnetic moment μeff = 4.71 μB.",

keywords = "Crystal structure, Inorganic compounds, Layered compounds, Magnetic properties, X-ray diffraction",

author = "Yahia, {Hamdi Ben} and Rachid Essehli and Ilias Belharouak and Etienne Gaudin",

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T1 - Crystal structure and magnetic properties of K2CoV2O7

AU - Yahia, Hamdi Ben

AU - Essehli, Rachid

AU - Belharouak, Ilias

AU - Gaudin, Etienne

PY - 2015/7/9

Y1 - 2015/7/9

N2 - The new compound K2CoV2O7 has been synthesized by a solid state reaction route. Its crystal structure has been determined using powder X-ray diffraction data (PXRD). The compound K2CoV2O7 crystallizes with the melilite-type structure with the tetragonal unit cell parameters a = 8.4574(1), c = 5.5729(1) Å and the space group P4-21m. The structure consists of [CoV2O7]2- layers perpendicular to the c axis separated by K+ layers. The [CoV2O7]2- layers consist of corner-sharing CoO4 tetrahedra and V2O7 pyrovanadate units, the linkage of these tetrahedra forming five-membered rings. The K+ cations occupy distorted square antiprisms of oxygen atoms. The magnetic susceptibility of K2CoV2O7 follows the Curie law χT = C with an effective magnetic moment μeff = 4.71 μB.

AB - The new compound K2CoV2O7 has been synthesized by a solid state reaction route. Its crystal structure has been determined using powder X-ray diffraction data (PXRD). The compound K2CoV2O7 crystallizes with the melilite-type structure with the tetragonal unit cell parameters a = 8.4574(1), c = 5.5729(1) Å and the space group P4-21m. The structure consists of [CoV2O7]2- layers perpendicular to the c axis separated by K+ layers. The [CoV2O7]2- layers consist of corner-sharing CoO4 tetrahedra and V2O7 pyrovanadate units, the linkage of these tetrahedra forming five-membered rings. The K+ cations occupy distorted square antiprisms of oxygen atoms. The magnetic susceptibility of K2CoV2O7 follows the Curie law χT = C with an effective magnetic moment μeff = 4.71 μB.

KW - Crystal structure

KW - Inorganic compounds

KW - Layered compounds

KW - Magnetic properties

KW - X-ray diffraction

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DO - 10.1016/j.materresbull.2015.06.038

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SP - 7

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JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

Crystal structure and magnetic properties of K₂CoV₂O₇

Abstract

Keywords

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