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On the structure of the Nx phase of symmetric dimers: inferences from NMR

Mehl, Georg H.; Hoffmann, Anke; Vanakaras, Alexandros G.; Kohlmeier, Alexandra; Mehl, Georg; Photinos, Demetri J.

Authors

Georg H. Mehl

Anke Hoffmann

Alexandros G. Vanakaras

Alexandra Kohlmeier

Demetri J. Photinos

Abstract

NMR measurements on a selectively deuterated liquid crystal dimer CB-C9-CB, exhibiting two nematic phases, show that the molecules in the lower temperature nematic phase, NX, experience a chiral environment and are ordered about a uniformly oriented director throughout the macroscopic sample. The results are contrasted with previous interpretations that suggested a twist-bend spatial variation of the director. A structural picture is proposed wherein the molecules are packed into highly correlated chiral assemblies.

Journal Article Type Article
Publication Date Feb 7, 2015
Journal Soft matter
Print ISSN 1744-683X
Electronic ISSN 1744-6848
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 11
Issue 5
Pages 850-855
Institution Citation Hoffmann, A., Vanakaras, A. G., Kohlmeier, A., Mehl, G., & Photinos, D. J. (2015). On the structure of the Nx phase of symmetric dimers: inferences from NMR. Soft matter, 11(5), 850-855. https://doi.org/10.1039/c4sm02480j
DOI https://doi.org/10.1039/c4sm02480j
Keywords Symmetric dimers
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2015/SM/C4SM02480J#!divAbstract
Copyright Statement ©2015 University of Hull
Additional Information This is a pre-copyedited, author-produced PDF of an article accepted for publication in Soft matter following peer review. The version of record Hoffmann, A. et al. (2015) On the structure of the Nx phase of symmetric dimers: inferences from NMR. Soft matter, Volume 11, Issue 5, Pages 850-855 is available online at: dx.doi.org/10.1039/C4SM02480J.

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