Lone-pair self-containment in pyritohedron-shaped ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
PMID :
URL permanente :
Titre :
Lone-pair self-containment in pyritohedron-shaped closed cavities: optimized hydrothermal synthesis, structure, magnetism and lattice thermal conductivity of Co15F2(TeO3)14
Auteur(s) :
Lu, Minfeng [Auteur]
Jiang, Jianhua [Auteur]
Zhu, Bei [Auteur]
Zhao, Yuwei [Auteur]
Zhu, Tianyu [Auteur]
Yang, Haoming [Auteur]
Jin, Yong [Auteur]
Kabbour, Houria [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Choi, Kwang-Yong [Auteur]
Harrison, William T. A. [Auteur]
Jiang, Jianhua [Auteur]
Zhu, Bei [Auteur]
Zhao, Yuwei [Auteur]
Zhu, Tianyu [Auteur]
Yang, Haoming [Auteur]
Jin, Yong [Auteur]
Kabbour, Houria [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Choi, Kwang-Yong [Auteur]
Harrison, William T. A. [Auteur]
Titre de la revue :
Dalton Transactions
Nom court de la revue :
Dalton Trans
Numéro :
49
Pagination :
2234-2243
Éditeur :
Royal Society of Chemistry (RSC)
Date de publication :
2020-01-31
ISSN :
1477-9226
Discipline(s) HAL :
Chimie/Chimie inorganique
Chimie
Chimie
Résumé en anglais : [en]
A new oxofluoride Co15F2(TeO3)14 has been prepared by optimized hydrothermal synthesis involving a complex mineralization process. The crystal structure consists of a three-dimensional network of CoO5(O,F) octahedra, ...
Lire la suite >A new oxofluoride Co15F2(TeO3)14 has been prepared by optimized hydrothermal synthesis involving a complex mineralization process. The crystal structure consists of a three-dimensional network of CoO5(O,F) octahedra, distorted CoO5 square pyramids, TeO3 trigonal pyramids and grossly distorted TeO3+3 octahedra, which are linked by sharing corners and edges. The Te(iv) lone pairs are accommodated within novel pyritohedron-shaped [(TeO3)14]28- units. This special framework provides a much larger free space that allows Te atoms to vibrate with a large amplitude, which leads to extremely low lattice thermal conductivity. Magnetic susceptibility data for Co15F2(TeO3)14 show antiferromagnetic ordering below 9.6 K with a substantial orbital component to the effective magnetic moment. An S = 3/2 honeycomb-like spin network was carefully analyzed by experimental techniques and first principles calculations.Lire moins >
Lire la suite >A new oxofluoride Co15F2(TeO3)14 has been prepared by optimized hydrothermal synthesis involving a complex mineralization process. The crystal structure consists of a three-dimensional network of CoO5(O,F) octahedra, distorted CoO5 square pyramids, TeO3 trigonal pyramids and grossly distorted TeO3+3 octahedra, which are linked by sharing corners and edges. The Te(iv) lone pairs are accommodated within novel pyritohedron-shaped [(TeO3)14]28- units. This special framework provides a much larger free space that allows Te atoms to vibrate with a large amplitude, which leads to extremely low lattice thermal conductivity. Magnetic susceptibility data for Co15F2(TeO3)14 show antiferromagnetic ordering below 9.6 K with a substantial orbital component to the effective magnetic moment. An S = 3/2 honeycomb-like spin network was carefully analyzed by experimental techniques and first principles calculations.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Matériaux inorganiques, structures, systèmes et propriétés (MISSP)
Date de dépôt :
2022-03-02T07:13:11Z
2023-03-17T12:55:27Z
2023-03-17T12:55:27Z
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- F7GV8FLK_CoTe_2020_01-20_HK-Dalton_HAL.pdf
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