Source:http://linkedlifedata.com/resource/pubmed/id/21386563
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
40
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pubmed:dateCreated |
2011-3-9
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pubmed:abstractText |
We investigate the structures of H(3)Co(CN)(6) and D(3)Co(CN)(6) and their temperature dependence using a combination of advanced neutron and x-ray diffraction techniques. Lattice parameter refinements show marked temperature- and isotope-dependent effects in the thermal expansion behaviour. Reverse Monte Carlo modelling of neutron total scattering data characterizes the distribution of D atom positions in the deuterated compound; analysis of these distributions reveals that the two N-H/D bonds become increasingly different with increasing temperature, suggesting a mechanism for the observed thermal expansion anomalies. We discuss these results in the context of the previous crystallographic, spectroscopic and theoretical results for H(3)Co(CN)(6) and 'super-short' N···H···N systems in general.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1361-648X
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
13
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pubmed:volume |
22
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
404202
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pubmed:meshHeading |
pubmed-meshheading:21386563-Cobalt,
pubmed-meshheading:21386563-Computer Simulation,
pubmed-meshheading:21386563-Cyanides,
pubmed-meshheading:21386563-Deuterium,
pubmed-meshheading:21386563-Hydrogen,
pubmed-meshheading:21386563-Hydrogen Bonding,
pubmed-meshheading:21386563-Models, Chemical,
pubmed-meshheading:21386563-Molecular Structure,
pubmed-meshheading:21386563-Monte Carlo Method,
pubmed-meshheading:21386563-Neutron Diffraction
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pubmed:year |
2010
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pubmed:articleTitle |
The hydrogen-bonding transition and isotope-dependent negative thermal expansion in H3Co(CN)6.
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pubmed:affiliation |
ISIS Facility, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX, UK. david.keen@stfc.ac.uk
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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