Synthesis and Stereochemical Aspects of 2,6-Disubstituted Perhydroazulenes – Core Units for a New Class of Liquid Crystalline Materials

2006 ◽  
Vol 2006 (24) ◽  
pp. 5555-5569 ◽  
Author(s):  
Zakir Hussain ◽  
Henning Hopf ◽  
Ludwig Pohl ◽  
Thomas Oeser ◽  
Axel K. Fischer ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Crystalline Materials ◽  
New Class ◽  
Liquid Crystalline Materials

scholarly journals Perhydroazulenes - A New Class of Liquid Crystalline Materials

Synlett ◽  
2011 ◽  
Vol 2011 (14) ◽  
pp. 2104-2104
Author(s):  
Henning Hopf ◽  
Peter Jones ◽  
Zakir Hussain ◽  
Rajeev Menon ◽  
Vitaly Raev ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Crystalline Materials ◽  
New Class ◽  
Liquid Crystalline Materials

A New Role for Bboron in Advanced Materials

1994 ◽  
Vol 374 ◽  
Author(s):  
Piotr Kaszynski ◽  
Dariusz Lipiak
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Dipole Moments ◽  
Semiempirical Calculations ◽  
Advanced Materials ◽  
Crystalline Materials ◽  
New Class ◽  
Liquid Crystalline Materials

AbstractApplication of highly polar dative bonds of heteroatoms to boron atoms for the preparation of a new class of liquid crystals is discussed. Semiempirical calculations show that compounds incorporating polar bonds of tetra- and higher-coordinated boron centers are characterized by large coaxial dipole moments and relatively large first hyperpolarizabilities β. It is expected that these new liquid crystalline materials will be useful for electrooptical applications.

scholarly journals Perhydroazulenes - A New Class of Liquid Crystalline Materials

Synlett ◽  
2011 ◽  
Vol 2011 (12) ◽  
pp. 1788-1788
Author(s):  
Henning Hopf ◽  
Peter Jones ◽  
Zakir Hussain ◽  
Rajeev Menon ◽  
Vitaly Raev ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Crystalline Materials ◽  
New Class ◽  
Liquid Crystalline Materials

Room temperature blue-light emitting liquid crystalline materials based on Phenanthroimidazole substituted Carbazole derivatives

2021 ◽  
Author(s):  
Vinay Kumar Sharma ◽  
Anuj Sharma ◽  
Vekata Subba Rao Ganga ◽  
Pranav Shrivastav ◽  
Priyanka A Jain ◽  
...  
Keyword(s):  
Schiff Base ◽  
Blue Light ◽  
Liquid Crystalline ◽  
Room Temperature ◽  
Light Emitting ◽  
Crystalline Materials ◽  
New Class ◽  
Blue Emitters ◽  
Liquid Crystalline Materials ◽  
Base Units

A new class of highly efficient blue emitters consisting of phenanthroimidazole-carbazole hybrid disc shaped molecules with two Schiff base units have been designed and well characterized. All the prepared materials...

Perhydroazulenes - A New Class of Liquid Crystalline Materials

Synlett ◽  
2011 ◽  
Vol 2011 (09) ◽  
pp. 1273-1276 ◽  
Author(s):  
Henning Hopf ◽  
Peter Jones ◽  
Zakir Hussain ◽  
Rajeev Menon ◽  
Vitaly Raev ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Crystalline Materials ◽  
New Class ◽  
Liquid Crystalline Materials

On resolving fine periodic microstructures in the optical microscope

1989 ◽  
Vol 47 ◽  
pp. 364-365
Author(s):  
W.S. Putnam ◽  
C. Viney
Keyword(s):  
Liquid Crystalline ◽  
Numerical Aperture ◽  
Polarized Light ◽  
Normal Incidence ◽  
Optical Microscope ◽  
Angle Of Incidence ◽  
Resolution Limit ◽  
Crystalline Materials ◽  
Periodic Microstructures ◽  
Liquid Crystalline Materials

Many sheared liquid crystalline materials (fibers, films and moldings) exhibit a fine banded microstructure when observed in the polarized light microscope. In some cases, for example Kevlar® fiber, the periodicity is close to the resolution limit of even the highest numerical aperture objectives. The periodic microstructure reflects a non-uniform alignment of the constituent molecules, and consequently is an indication that the mechanical properties will be less than optimal. Thus it is necessary to obtain quality micrographs for characterization, which in turn requires that fine detail should contribute significantly to image formation.It is textbook knowledge that the resolution achievable with a given microscope objective (numerical aperture NA) and a given wavelength of light (λ) increases as the angle of incidence of light at the specimen surface is increased. Stated in terms of the Abbe resolution criterion, resolution improves from λ/NA to λ/2NA with increasing departure from normal incidence.

Designing Chemically Selective Liquid Crystalline Materials that Respond to Oxidizing Gases

2021 ◽  
Author(s):  
Nanqi Bao ◽  
Jake Gold ◽  
Tibor Szilvasi ◽  
Huaizhe Yu ◽  
Robert Twieg ◽  
...  
Keyword(s):  
Computational Methods ◽  
First Principles ◽  
Liquid Crystalline ◽  
Soft Materials ◽  
Crystalline Materials ◽  
Liquid Crystalline Materials ◽  
Chemically Selective ◽  
Kinetics Of

Computational methods can provide first-principles insights into the thermochemistry and kinetics of reactions at interfaces, but this capability has not been widely leveraged to design soft materials that respond selectively...

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