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Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Volume 331, 1999 - Issue 1
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SECTION VI: MOLECULAR PROPERTIES AND DYNAMICS

Orientation, Structure and Dynamics in the Highly Ordered Smectic Phases of 7BEF5 by 2H-NMR

Lucia Calucci Dipartiniento di Chimica e Chimica Industrielle, Università di Pisa, via Risorgimemo 35, 1-56126, Pisa, Italy
,
Donata Catalano Dipartiniento di Chimica e Chimica Industrielle, Università di Pisa, via Risorgimemo 35, 1-56126, Pisa, Italy
,
Katalin Fodor-csorba Research Institute for Solid State Physics, Hungarian Academy of Sciences, P. O. Box 49., 1525, Budapest, Hungary
,
Claudia Forte Isti-tuto di Chimica Quantistica ed Energetica Molecolare, CNR, via Risorgimento 35, I-56126, Pisa, Italy
&
Carlo Alberto Veracini Dipartiniento di Chimica e Chimica Industrielle, Università di Pisa, via Risorgimemo 35, 1-56126, Pisa, Italy
Pages 9-19 | Published online: 04 Oct 2006
 
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Abstract

2H-NMR spectroscopy is employed to investigate the orientational order in the neinutic and smectic A, B, and G phases formed by 4-(2-methylbutyl)phenyl-4′n-heptylbiphenyl-4-car-boxylate (7BEF5). The dynamics of the aromatic molecular core is studied in a temperature interval including the SA—SB transition, by the analysis of the deuterium Zeeman and Quad-rupo'. ar relaxation times with the rotational diffusion model.

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