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Crystal structure and magnetic properties of Ba2Ni(PO4)2

Identifieur interne : 001018 ( Main/Exploration ); précédent : 001017; suivant : 001019

Crystal structure and magnetic properties of Ba2Ni(PO4)2

Auteurs : B. Elbali [Maroc] ; A. Boukhari [Maroc] ; J. Aride ; M. Belaiche ; F. Abraham [France] ; M. Drillon [France]

Source :

RBID : Pascal:94-0337245

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English descriptors

Abstract

The structure of the title compound was solved by single crystal X-ray diffraction. It crystallizes in the monoclinic system with the space group P21/n. The cell parameters are a=5.312, b=8.789, c=16.067Å, β=90.72°, Z=4. The structure has been refined from 2979 independent reflections to R=0.031 (Rw=0.039). The three-dimensional framework could be described from corner and edge-sharing NiO6 octahedra and PO4 tetrahedra creating two types of tunnels where are located the barium ions. Magnetic thermal susceptibility has been described in terms of antiferromagnetic isotropic interactions in dimers of Ni2+ (S=1)


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Le document en format XML

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<title xml:lang="en" level="a">Crystal structure and magnetic properties of Ba
<sub>2</sub>
Ni(PO
<sub>4</sub>
)
<sub>2</sub>
</title>
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<name sortKey="Elbali, B" sort="Elbali, B" uniqKey="Elbali B" first="B." last="Elbali">B. Elbali</name>
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<title xml:lang="en" level="a">Crystal structure and magnetic properties of Ba
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Ni(PO
<sub>4</sub>
)
<sub>2</sub>
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<name sortKey="Aride, J" sort="Aride, J" uniqKey="Aride J" first="J." last="Aride">J. Aride</name>
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<name sortKey="Belaiche, M" sort="Belaiche, M" uniqKey="Belaiche M" first="M." last="Belaiche">M. Belaiche</name>
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<name sortKey="Abraham, F" sort="Abraham, F" uniqKey="Abraham F" first="F." last="Abraham">F. Abraham</name>
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<country>France</country>
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<region type="region" nuts="2">Hauts-de-France</region>
<region type="old region" nuts="2">Nord-Pas-de-Calais</region>
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<name sortKey="Drillon, M" sort="Drillon, M" uniqKey="Drillon M" first="M." last="Drillon">M. Drillon</name>
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<country>France</country>
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<title level="j" type="main">European journal of solid state and inorganic chemistry</title>
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<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Antiferromagnetism</term>
<term>Barium phosphates</term>
<term>Channel structure</term>
<term>Crystal structure</term>
<term>Exchange interactions</term>
<term>Experimental study</term>
<term>Magnetic specific heat</term>
<term>Magnetic susceptibility</term>
<term>Nickel phosphates</term>
<term>Quaternary compounds</term>
<term>Thermodynamic properties</term>
<term>XRD</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Etude expérimentale</term>
<term>XRD</term>
<term>Structure cristalline</term>
<term>Composé quaternaire</term>
<term>Nickel phosphate</term>
<term>Baryum phosphate</term>
<term>Susceptibilité magnétique</term>
<term>Chaleur massique magnétique</term>
<term>Antiferromagnétisme</term>
<term>Interaction échange</term>
<term>Propriété thermodynamique</term>
<term>Structure tunnel</term>
<term>6166F</term>
<term>6110M</term>
<term>7540C</term>
<term>Ba2Ni(PO4)2</term>
<term>Ba Ni O P</term>
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<front>
<div type="abstract" xml:lang="en">The structure of the title compound was solved by single crystal X-ray diffraction. It crystallizes in the monoclinic system with the space group P2
<sub>1</sub>
/n. The cell parameters are a=5.312, b=8.789, c=16.067Å, β=90.72°, Z=4. The structure has been refined from 2979 independent reflections to R=0.031 (R
<sub>w</sub>
=0.039). The three-dimensional framework could be described from corner and edge-sharing NiO
<sub>6</sub>
octahedra and PO
<sub>4</sub>
tetrahedra creating two types of tunnels where are located the barium ions. Magnetic thermal susceptibility has been described in terms of antiferromagnetic isotropic interactions in dimers of Ni
<sup>2+</sup>
(S=1)</div>
</front>
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<name sortKey="Elbali, B" sort="Elbali, B" uniqKey="Elbali B" first="B." last="Elbali">B. Elbali</name>
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