ChemistrySelect,
Год журнала:
2019,
Номер
4(28), С. 8220 - 8224
Опубликована: Июль 24, 2019
Abstract
Benzene
centered
tris‐alkylimidazolium
bromide
salts,
denoted
as
BTIm(R)
3
Br
;
where
R=C
12
H
25
and
C
14
29
have
been
prepared
structurally
characterised.
The
hydrogelation
ability
stabilizer
role
of
these
salts
for
the
synthesis
silver
nanoparticles
(AgNPs)
via
chemical
reduction
method
is
described.
A
worth
note
that
BTIm(C
)
compound
could
lead
a
thermoreversible
fibrous‐hydrogel
in
water,
which
plays
dual
directing
agent
dendritic
nanostructures.
While
partial‐hydrogel
contributes
nanospheres.
non‐gel
solutions
dichloromethane,
water
stabilizers
did
not
show
control
over
shape
AgNPs,
they
mixed
morphology.
experimental
conditions,
i.
e
.
temperature,
heating‐cooling
process
physical
state
play
key
hydrogel
morphology
Ag
Overall,
outcome
present
study
provides
new
possibility
use
fibrous
gels
to
prepare
dendrites.
Chemical Reviews,
Год журнала:
2016,
Номер
116(8), С. 4643 - 4807
Опубликована: Апрель 18, 2016
This
Review
covers
the
recent
developments
(2005–2015)
in
design,
synthesis,
characterization,
and
application
of
thermotropic
ionic
liquid
crystals.
It
was
designed
to
give
a
comprehensive
overview
"state-of-the-art"
field.
The
discussion
is
focused
on
low
molar
mass
dendrimeric
mesogens,
as
well
selected
metal-containing
compounds
(metallomesogens),
but
some
references
polymeric
and/or
lyotropic
crystals
particularly
liquids
will
also
be
provided.
Although
zwitterionic
mesoionic
mesogens
are
treated
extent,
emphasis
directed
toward
liquid-crystalline
materials
consisting
organic
cations
organic/inorganic
anions
that
not
covalently
bound
interact
via
electrostatic
other
noncovalent
interactions.
Chemical Reviews,
Год журнала:
2019,
Номер
119(8), С. 4986 - 5056
Опубликована: Апрель 2, 2019
N-Heterocyclic
carbenes
(NHCs)
have
become
one
of
the
most
widely
studied
class
ligands
in
molecular
chemistry
and
found
applications
fields
as
varied
catalysis,
stabilization
reactive
fragments,
biochemistry.
More
recently,
NHCs
materials
allowed
for
functionalization
surfaces,
polymers,
nanoparticles,
discrete,
well-defined
clusters.
In
this
review,
we
provide
an
in-depth
look
at
recent
advances
use
development
functional
materials.
Liquid Crystals,
Год журнала:
2014,
Номер
41(12), С. 1843 - 1853
Опубликована: Авг. 21, 2014
A
series
of
cholesteryl-containing
imidazolium
chlorides
and
tetrachloroaluminates
were
synthesised,
the
chemical
structure,
liquid
crystalline
behaviour
ionic
conductivity
characterised
by
several
technical
methods.
Whereas
show
chiral
smectic
(SmA*)
phase
on
heating
cooling
cycles,
display
nematic
(N*)
phase,
which
is
uncommon
for
crystals
(ILCs).
The
similar
transition
temperature
entropy,
indicating
cholesteryl
component
influence
predominately
rather
than
different
alkyl
substituent
groups.
lower
melting
point
temperatures
clear
chlorides.
mesophases
exist
at
moderate
temperatures.
Non-mesomorphic
tetrachloroaluminate(III)
salts
with
short
substituents
have
been
known
a
long
time,
synthesised
are
first
examples
tetrahalogenoaluminate(III)-containing
ILCs.
For
tetrachloroaluminates,
cations
combine
loosely
AlCl4−
ions
because
large
occupy
more
space
in
spite
hydrogen
bond
electrostatic
attraction
interaction,
that
layer
structure
can
be
destroyed
easily
to
form
N*
heating.
ACS Omega,
Год журнала:
2019,
Номер
4(5), С. 9400 - 9406
Опубликована: Май 29, 2019
The
incorporation
of
a
hexadecyl
group
on
imidazolium,
pyridinium,
and
pyrrolidinium
scaffolds
produces
low-molecular-weight
ionic
organogelators
that
can
gel
several
types
liquids,
deep
eutectic
solvents
(DESs),
molecular
organic
solvents.
Minimum
gelator
concentrations
fall
in
the
0.9-15.0%
(w/v)
range,
with
lower
end
observed
gelation
DESs.
On
basis
polarized
optical
microscopy,
differential
scanning
calorimetry,
X-ray
data,
crystallization
these
salts
appear
to
produce
high-surface-area
crystals,
which
generate
sufficiently
stable
three-dimensional
networks
are
capable
trapping
solvent
molecules.
Importantly,
nature
fluid
component
appears
have
profound
effect
morphology
crystallized
organogelators.
other
hand,
appeared
modulate
phase
transitions
liquids.
Inorganic Chemistry,
Год журнала:
2014,
Номер
53(12), С. 5902 - 5910
Опубликована: Июнь 3, 2014
The
synthesis
and
characterization
of
tetranuclear
silver
triazole
metallomesogens,
[Ag4(L(4)-C(n))6][BF4]4
(L(4)-C(n)
=
4-alkyl-1,2,4-triazoles
where
C(n)
stands
for
C(n)H(2n+1)
with
n
12,
14,
16,
18),
are
reported.
Upon
heating,
a
phase
transition
sequence
Cr
→
SmC
Cub
SmA
isotropic
liquid
is
observed
all
these
compounds.
Depending
on
the
alkyl
chain
length,
two
types
cubic
phases
found
in
this
series
Those
shorter
chains
(n
12
14)
exhibit
micellar
phase,
whereas
long
=16
18)
show
bicontinuous
phase.
Superior
ionic
conductivity
at
mesophase
[Ag4(L4-C16)6][BF4]4
because
presence
three-dimensional
ion-transporting
channel.
Doping
small
amount
AgBF4
enhances
conduction
dramatically,
presumably
via
promotion
migration
Ag(I)
ions
channels.
