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"A" cation polarity control in ACuTe2O7 (A = Sr2+, Ba2+, or Pb2+).

Abstract:

The synthesis and characterization of ACuTe(2)O(7) (A = Sr(2+), Ba(2+), or Pb(2+)) have been carried out. Interestingly, SrCuTe(2)O(7) and PbCuTe(2)O(7) are centrosymmetric and isostructural, whereas BaCuTe(2)O(7) is noncentrosymmetric and polar. All of the materials contain [CuTe(2)O(7)](2-) layers stacked along the b-axis direction that are separated by the "A" cations. The layers are composed of corner-shared CuO(5), TeO(6), and TeO(4) polyhedra. The influence of the "A" cation on the pola...

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Publication status:
Published

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Publisher copy:
10.1021/ic2012217

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Role:
Author
Journal:
Inorganic chemistry
Volume:
50
Issue:
17
Pages:
8663-8670
Publication date:
2011-09-05
DOI:
EISSN:
1520-510X
ISSN:
0020-1669
URN:
uuid:db64bee6-7ab6-4298-9cf6-6abea90ebeee
Source identifiers:
177293
Local pid:
pubs:177293
Language:
English

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