Chemistry Reference
In-Depth Information
Fig. 21 a
The schematic of lateral hydrogen bonding in a mesogenic phase.
b
The chem-
ical structure of the fluorenone
54a
and fluorenol
54b
derivatives studied by Sniekus and
Lemieux
c
Aromatic esters/amides
46a
and
46b
studied by Kishikawa and their proposed
smectic phase assemblies
strong hydrogen bonding interactions present, leading the proposition of
a syn-parallel (tape-like) arrangement for this phase. At higher temperatures
a decrease in hydrogen bonding is observed as the phase transitions into
aSmC
y
and then a SmA phase. It is proposed than in these two phases the
molecules are arranged in an anti-parallel manner to cancel out their large
dipoles.
3
Perspectives and Outlook
It is clear that in recent times the toolbox of interactions and building blocks
for SLCPs is at hand and that structure-property relationships have been
established. A vast array of architectures and LC assemblies has been demon-
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