ChemPlusChem,
Journal Year:
2024,
Volume and Issue:
89(5)
Published: March 7, 2024
Abstract
The
discovery
of
a
new
polar
nematic
phase;
the
ferroelectric
nematic,
has
generated
great
deal
excitement
in
field
liquid
crystals.
To
date
there
have
been
around
150
materials
reported
exhibiting
phase,
general,
following
three
key
archetypal
structures
with
these
compounds
known
as
RM734,
DIO
and
UUQU‐4N.
In
this
review,
relationship
between
molecular
structure
stability
N
F
,
phase
will
be
described
from
chemist's
perspective.
This
look
to
highlight
wide
variety
functionalities
which
incorporated
into
how
changes
influence
transition
temperatures
mesophases
present.
appears
stabilised
particularly
by
reducing
length
terminal
alkyl
chains
present
adding
fluorines
laterally
along
backbone.
review
introduce
background
before
then
showing
range
exhibit
describing
their
structure–property
relationships
therefore
giving
an
up–to–date
account
literature
for
fascinating
mesophase.
Small Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 3, 2024
Polar
liquid
crystals
possess
3D
orientational
order
coupled
with
unidirectional
electric
polarity,
yielding
fluid
ferroelectrics.
Such
polar
phases
are
generated
by
rod‐like
molecules
large
dipole
moments.
2,5‐Disubstituted
1,3‐dioxane
is
commonly
employed
as
a
motif
in
said
systems,
and
herein
it
shown
to
suffer
from
thermal
instability
consequence
of
equatorial‐trans
axial‐trans
isomerism
at
elevated
temperatures.
Isosteric
building
blocks
utilized
potential
replacements
for
the
unit,
doing
so
new
examples
ferroelectric
systems
obtained.
For
binary
mixtures
certain
composition,
emergence
antiferroelectric
phase,
finding
not
observed
either
parent
molecules,
observed.
This
study
also
reveals
critical
tipping
point
otherwise
apolar
systems.
These
results
hint
possibility
uncovering
highly
ordered
liquid‐crystalline
delineate
distinct
transition
mechanisms
ordering.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Abstract
The
discovery
of
fluid
states
matter
with
spontaneous
bulk
polar
order
is
appreciated
as
a
major
in
the
fields
soft
and
liquid
crystals.
Typically,
this
manifests
superimposed
atop
conventional
phase
structures
thus
far
limited
to
orthogonal
types.
Here
we
report
family
materials
which
exhibit
previously
unseen
state
conclude
smectic
C
phase,
so
term
it
SmC
P
.
polarisation
over
two
orders
magnitude
larger
than
that
found
ferroelectric
chiral
used
some
LCD
devices.
Fully
atomistic
molecular
dynamics
simulations
faithfully
spontaneously
reproduce
proposed
structure
associated
properties;
comparison
experimental
simulated
X‐ray
scattering
patterns
shows
excellent
agreement.
disclosed
here
have
significantly
smaller
dipole
moments
typical
crystals
such
RM734
suggests
role
electrical
polarity
generating
perhaps
overstated,
view
supported
by
consideration
other
systems.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 20, 2024
We
report
on
a
series
of
materials
which
exhibit
range
nematic
phases
including
the
rare
example
single
compound
shows
both
enantiotropic
N
X
and
F
phases.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 26, 2025
RIKEN
covers
fundamental
research
on
physics,
chemistry,
biology,
life
and
medical
science,
information
mathematical
engineering.
Here,
we
outline
activities
quantum
materials
technology
that
include
topological
correlated
materials,
spintronics,
nanoscale
structures,
atomic
optics,
computing.
Applied Physics Express,
Journal Year:
2024,
Volume and Issue:
17(3), P. 031001 - 031001
Published: Feb. 26, 2024
Abstract
It
is
essential
to
estimate
the
surface
polar
anchoring
energy
in
order
discuss
interfacial
orientation
of
ferroelectric
nematic
liquid
crystals.
In
this
study,
we
accurately
estimated
twist
angle
a
π
-twist
cell
with
an
antiparallel
rubbing
manner,
by
means
renormalized
transmission
spectroscopic
ellipsometry,
which
has
great
deal
experience
measuring
ordinary
We
also
succeeded
estimating
reduced
from
equation
derived
simplified
torque
balance
equation.
assumed
that
on
10
2
.
