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Local structure in Ag(3)[Co(CN)(6)]: colossal thermal expansion, rigid unit modes and argentophilic interactions

Abstract:

Local structure in the colossal thermal expansion material Ag 3[Co(CN)6] is studied here using a combination of neutron total scattering and reverse Monte Carlo (RMC) analysis. We show that the large thermal variations in cell dimensions occur with minimal distortion of the [Co(CN)6 ] coordination polyhedra, but involve significant flexing of the Co-CN-Ag-NC-Co linkages. We find real-space evidence in our RMC configurations for the importance of low-energy rigid unit modes (RUMs), particularl...

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Publication status:
Published

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Journal:
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume:
20
Issue:
25
Pages:
255225-255225
Publication date:
2008-06-25
DOI:
EISSN:
1361-648X
ISSN:
0953-8984
URN:
uuid:a0f3057e-7902-44e1-87d5-3c8f5d326964
Source identifiers:
50652
Local pid:
pubs:50652
Language:
English

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