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High-spin cobalt(II) ions in square planar coordination: structures and magnetism of the oxysulfides Sr2CoO2Cu2S2 and Ba2CoO2Cu2S2 and their solid solution.

Abstract:

The antiferromagnetic structures of the layered oxychalcogenides (Sr(1-x)Ba(x))(2)CoO(2)Cu(2)S(2) (0 ≤ x ≤ 1) have been determined by powder neutron diffraction. In these compounds Co(2+) is coordinated by four oxide ions in a square plane and two sulfide ions at the apexes of an extremely tetragonally elongated octahedron; the polyhedra share oxide vertexes. The magnetic reflections present in the diffraction patterns can in all cases be indexed using a √2a × √2a × c expansion of the nuclear...

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Publication status:
Published

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Publisher copy:
10.1021/ja109553u

Authors


Parker, DR More by this author
Johnson, MR More by this author
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Journal:
Journal of the American Chemical Society
Volume:
133
Issue:
8
Pages:
2691-2705
Publication date:
2011-03-05
DOI:
EISSN:
1520-5126
ISSN:
0002-7863
URN:
uuid:4e523183-a963-470b-a817-ca8179afaae9
Source identifiers:
118041
Local pid:
pubs:118041

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