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Dideuterium as solute in nematic liquid crystals

TitleDideuterium as solute in nematic liquid crystals
Publication TypeJournal Article
Year of Publication2006
AuthorsBeek, LC ter, Burnell, EE
JournalChemical Physics Letters
Date PublishedJul
Type of ArticleArticle
ISBN Number0009-2614
KeywordsMOLECULAR-HYDROGEN, NMR, orientational order, SOLVENTS

Deuteron NMR experiments on dideuterium dissolved in the nematic liquid-crystal solvents 7CB, CCH7, MBBA and PCH7 are reported as a function of temperature. The results are analysed in terms of the average solvent electric field gradient anisotropy (efg) felt by D-2 which is positive with respect to the director in 7CB, CCH7 and PCH7 and negative in MBBA. The order parameter of D-2 is to a large extent rationalized in terms of the interaction between this solvent efg and the solute D-2 molecular quadrupole moment, and its sign is the same as that of the efg. (c) 2006 Elsevier B.V. All rights reserved.

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