Synthesis and mesomorphic investigation of calamitic liquid crystalline system ethyl-[4-(4′-decyloxy)benzoyloxy]-benzoate (4-EDBB): A temperature dependent micro-Raman study and DFT calculations

2013 ◽  
Vol 69 ◽  
pp. 40-48 ◽  
Author(s):  
Rajib Nandi ◽  
K. Vikram ◽  
Sachin Kumar Singh ◽  
Bachcha Singh ◽  
Ranjan K. Singh
Keyword(s):  
Dft Calculations ◽  
Liquid Crystalline ◽  
Temperature Dependent ◽  
Raman Study ◽  
Crystalline System ◽  
Liquid Crystalline System

scholarly journals The Origin of the Helical Twist Inversion in Single Component Cholesteric Liquid Crystals

1994 ◽  
Vol 49 (11) ◽  
pp. 1081-1086 ◽  
Author(s):  
I. Dierking ◽  
F. Gießelmann ◽  
P. Zugenmaier ◽  
K. Mohr ◽  
H. Zaschke ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Single Component ◽  
Power Model ◽  
Temperature Dependent ◽  
First Approximation ◽  
Helical Twist ◽  
Chiral Centers ◽  
Crystalline System ◽  
The Individual ◽  
Liquid Crystalline System

Abstract The cholesteric twist inversion by temperature variation o f a single component thermotropic liquid crystalline system was experimentally investigated and is explained by the partial twisting power model, evaluating the temperature dependent pitch o f five different configurations of a benzoic acid biphenyl ester with two chiral centers. The temperature dependence o f the twisting power and the cholesteric pitch for several stereoisomeric compounds can in first approximation be predicted by the partial twisting powers of the individual chiral centers determined from the partially racemic configurations.

scholarly journals Measurement and Analysis of the Molecular Ordering Tensors of Two Enantiomers Oriented in a Polypeptide Liquid Crystalline System

1996 ◽  
Vol 100 (34) ◽  
pp. 14569-14569 ◽  
Author(s):  
Philippe Lesot ◽  
Yves Gounelle ◽  
Denis Merlet ◽  
Aharon Loewenstein ◽  
Jacques Courtieu
Keyword(s):  
Liquid Crystalline ◽  
Molecular Ordering ◽  
Measurement And Analysis ◽  
Crystalline System ◽  
Liquid Crystalline System

Dynamics and mechanism of the Crystal II → smecticG phase transition in TB7A by a temperature-dependent micro-Raman study and DFT calculations

2009 ◽  
Vol 40 (8) ◽  
pp. 881-886 ◽  
Author(s):  
K. Vikram ◽  
Sunil K. Srivastava ◽  
Animesh K. Ojha ◽  
S. Schlücker ◽  
W. Kiefer ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dft Calculations ◽  
Temperature Dependent ◽  
Raman Study
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