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          Institute: MPI für medizinische Forschung     Collection: Jahrbuch 2012     Display Documents



ID: 638133.0, MPI für medizinische Forschung / Jahrbuch 2012
Smectic order parameters via liquid crystal NMR spectroscopy: Application to a partial bilayer smectic A phase
Translation of Title:Smectic order parameters via liquid crystal NMR spectroscopy: Application to a partial bilayer smectic A phase
Authors:Di Pietro, Maria Enrica; Celebre, Giorgio; De Luca, Giuseppina; Zimmermann, Herbert; Cinacchi, Giorgio
Language:English
Date of Publication (YYYY-MM-DD):2012-10-29
Title of Journal:The European Physical Journal E
Journal Abbrev.:The European Physical Journal E
Volume:35
Issue / Number:10
Start Page:1
End Page:10
Sequence Number of Article:112
Review Status:Peer-review
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:Solute molecules were dissolved in the liquid crystal 4−cyano−4'−n−octyloxybiphenyl (8OCB), known to form a partial bilayer smectic−A phase. Through measurement of solutes' and solvent's orientational order parameters via nuclear magnetic resonance spectroscopy, and their analysis via a statistical thermodynamic density functional theory, values of the solvent's positional order parameters and solutes' positional−orientational distribution functions were obtained. Near to the transition to the nematic phase, the main positional order parameter of the smectic liquid crystal turned out to be comprised in the interval 0.4−0.6, though the quality of the fittings assuming the phase as nematic all across the temperature range investigated was only slightly worse. This may be ascribed to the looseness of the partial bilayer smectic structure. Solutes were found to preferentially lie in those regions where liquid crystal molecule terminal chains are located
External Publication Status:published
Document Type:Article
Communicated by:Wulf Kaiser
Affiliations:MPI für medizinische Forschung/Abteilung Biophysik
MPI für medizinische Forschung/Abteilung Biomolekulare Mechanismen
MPI für medizinische Forschung/Arbeitsgruppe Zimmermann
MPI für medizinische Forschung/Abteilung Molekulare Physik
Identifiers:LOCALID:7833
URI:http%3A%2F%2Flink.springer.com%2Fcontent%2Fpdf%2F1...
URI:http%3A%2F%2Flink.springer.com%2Farticle%2F10.1140...
DOI:10.1140%2Fepje%2Fi2012-12112-0
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