Molecular dynamics of a ferroelectric smectogen in its smectic phases by means of 2H NMR spectroscopy

2006 ◽  
Vol 33 (4) ◽  
pp. 479-484 ◽  
Author(s):  
Valentina Domenici ◽  
Marco Geppi ◽  
Carlo Alberto Veracini ◽  
Ronald Y. Dong
Keyword(s):  
Molecular Dynamics ◽  
Nmr Spectroscopy ◽  
2H Nmr ◽  
2H Nmr Spectroscopy ◽  
Smectic Phases

scholarly journals Structure and dynamics of the aliphatic cholesterol side chain in membranes as studied by 2H NMR spectroscopy and molecular dynamics simulation

2016 ◽  
Vol 18 (5) ◽  
pp. 3730-3738 ◽  
Author(s):  
Alexander Vogel ◽  
Holger A. Scheidt ◽  
Dong Jae Baek ◽  
Robert Bittman ◽  
Daniel Huster
Keyword(s):  
Molecular Dynamics ◽  
Nmr Spectroscopy ◽  
Dynamics Simulation ◽  
Side Chain ◽  
Structural Flexibility ◽  
Large Contribution ◽  
2H Nmr ◽  
2H Nmr Spectroscopy ◽  
Structure And Dynamics ◽  
Condensation Effect

The cholesterol side chain has limited structural flexibility due to steric clashes explaining its large contribution to the condensation effect.

Wideline 2H -NMR Spectroscopy and Imaging of Solids

1994 ◽  
Vol 49 (1-2) ◽  
pp. 19-26 ◽  
Author(s):  
B. Blümich
Keyword(s):  
Nmr Spectroscopy ◽  
Excitation Power ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
2H Nmr ◽  
Stochastic Excitation ◽  
2H Nmr Spectroscopy ◽  
Spatially Inhomogeneous ◽  
Recent Developments ◽  
Angle Spinning

Abstract Recent developments, focussing on reduction of the rf excitation power by stochastic excitation, on improvements in sensitivity and excitation bandwidth by magic angle spinning, and on combining wideline spectroscopy with spatial resolution for investigations o f spatially inhomogeneous objects are reviewed.

Phase diagrams of new lamellar liquid crystalline systems based on 2H NMR spectroscopy data

2021 ◽  
Vol 31 (1) ◽  
pp. 135-136
Author(s):  
Vladimir V. Klochkov ◽  
Ilfat Z. Rakhmatullin ◽  
Sergey V. Efimov ◽  
Alexander V. Klochkov
Keyword(s):  
Nmr Spectroscopy ◽  
Phase Diagrams ◽  
Liquid Crystalline ◽  
2H Nmr ◽  
Spectroscopy Data ◽  
2H Nmr Spectroscopy

Multiaxial Reorientationsof ND+4 Ions Studied by 2H-NMR Spectroscopy

1991 ◽  
Vol 46 (10) ◽  
pp. 829-840 ◽  
Author(s):  
Z. T. Lalowicz ◽  
S. F. Sagnowski
Keyword(s):  
Nmr Spectroscopy ◽  
Density Matrix ◽  
Nmr Spectra ◽  
Activation Energies ◽  
Matrix Formalism ◽  
2H Nmr ◽  
Jump Frequency ◽  
H Nmr ◽  
2H Nmr Spectroscopy ◽  
Density Matrix Formalism

AbstractThe density matrix formalism is used to simulate motional averaging in the 2H-NMR spectra of reorienting ND+4 ions. The development of the spectra under increasing jump frequency about a single C3 or C2 axis is followed. Next we assume a hierarchy of axes in terms of activation energies sufficient to reach extreme narrowing conditions for some axes before activating jumps about a next one. Primary reorientations about the fastest C3 or C2 symmetry axes define the shape of spectra, the width of which is then stepwise reduced by fast reorientations about the subsequent axes in a postulated sequence of statistically uncorrelated jumps.

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