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The low temperature phase transition in octane and its possible generalisation to other n-alkanes

Abstract:

A neutron powder diffraction study of three n-alkanes, octane, nonane and pentadecane, down to 2 K is presented. The temperature dependence of the octane diffraction pattern reveals a solid state phase transition between 40 and 55 K, which involves a doubling of the unit cell in the b direction, the space group remaining P1̄. Confirmation of the phase transition, which results in a doubling of the number of crystallographically inequivalent methyl groups, is sought in the published NMR, tunne...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
Journal:
CHEMICAL PHYSICS
Volume:
266
Issue:
1
Pages:
53-68
Publication date:
2001-05-01
DOI:
ISSN:
0301-0104
URN:
uuid:9a4ee57f-24c6-4763-84f6-55ccb2a0c2a3
Source identifiers:
66351
Local pid:
pubs:66351
Language:
English

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