scholarly journals Molecular polarizability anisotropy of cyclopropane

1968 ◽  
Vol 21 (10) ◽  
pp. 2551 ◽  
Author(s):  
MJ Aroney ◽  
RJW Le Fevre ◽  
W Luttke ◽  
GLD Ritchie ◽  
PJ Stiles
2011 ◽  
Vol 181-182 ◽  
pp. 102-105 ◽  
Author(s):  
M. Ramakrishna Nanachara Rao ◽  
P.V. Datta Prasad ◽  
V.G.K.M. Pisipati ◽  
D. Madhavi Latha

Refractive indices measurements are carried out in four alkoxy benzylidene anilines viz., N-(p-n-methoxy and ethoxy benzaldehyde)-p-n-dodecyl and tetra decyl anilines, 1O.12, 1O.14, 2O.12 and 2O.14. First three compounds exhibit monovariant nematic phase while the last compound exhibits nematic and SmA phases with variable thermal ranges. The molecular polarizabilities are calculated from the refractive indices and the density using the well known internal field models by Vuks and Neugebauer. The molecular polarizability anisotropy is estimated from the Lippincott δ-function model as well as molecular vibrational methods. The order parameter is estimated using a) from the Haller’s extrapolation from molecular polarizabilities, b) from the scaling factors obtained from the equations by Vuks and Neugbeaur and c) directly from the birefringence - a method developed by Kuczynski et al without considering any internal field model to the liquid crystal molecule. The results evaluated from these methods are compared from one another and the limitations of the methods used are discussed.


2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Peter Zalden ◽  
Liwei Song ◽  
Xiaojun Wu ◽  
Haoyu Huang ◽  
Frederike Ahr ◽  
...  

2012 ◽  
Vol 85 (5) ◽  
Author(s):  
Hao Li ◽  
Wenxue Li ◽  
Yahui Feng ◽  
Jia Liu ◽  
Haifeng Pan ◽  
...  

2011 ◽  
Vol 997 (1-3) ◽  
pp. 20-29 ◽  
Author(s):  
V.V. Prezhdo ◽  
P. Kowalski ◽  
T. Kowalska ◽  
V.V. Zubkova ◽  
K. Olan ◽  
...  

2003 ◽  
Vol 30 (6) ◽  
pp. 697-700 ◽  
Author(s):  
KAZUHIRO YOKOTA ◽  
TATSUTOSHI SHIODA ◽  
MICHI NAKATA ◽  
YOICHI TAKANISHI ◽  
KEN ISHIKAWA ◽  
...  

1994 ◽  
Vol 98 (3) ◽  
pp. 771-776 ◽  
Author(s):  
Kathlene M. Gough ◽  
Hemant K. Srivastava ◽  
Katarina Belohorcova

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