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Colossal positive and negative thermal expansion in the framework material Ag3[Co(CN)6].

Abstract:

We show that silver(I) hexacyanocobaltate(III), Ag3[Co(CN)6], exhibits positive and negative thermal expansion an order of magnitude greater than that seen in other crystalline materials. This framework material expands along one set of directions at a rate comparable to the most weakly bound solids known. By flexing like lattice fencing, the framework couples this to a contraction along a perpendicular direction. This gives negative thermal expansion that is 14 times larger than in ZrW2O8. D...

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Publication status:
Published

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Publisher copy:
10.1126/science.1151442

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Journal:
Science (New York, N.Y.)
Volume:
319
Issue:
5864
Pages:
794-797
Publication date:
2008-02-05
DOI:
EISSN:
1095-9203
ISSN:
0036-8075
URN:
uuid:c67641cb-48b1-4a88-9c6d-44f51437f758
Source identifiers:
50524
Local pid:
pubs:50524
Language:
English

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