Topochemical
reactions
normally
occurring
in
the
solid
and
crystalline
state
exhibit
solvent-free
catalyst-free
properties,
with
high
atom
economy
which
have
been
widely
applied
materials
science
polymer
synthesis.
Herein,
we
explore
potential
of
topochemical
for
controlling
emergence
supramolecular
chirality
precise
fabrication
chiroptical
materials.
Boronic
acid
pinacol
esters
(BPin)
were
conjugated
to
naphthalimides
containing
an
inherent
chiral
cholesteryl
group
linked
by
alkyl
or
benzene
spacers.
The
BPin
segments
oxidized
H2O2
form
hydroxyl
groups,
enhanced
luminescence,
reduced
steric
effects,
increased
amphiphilicity.
liposomal
aggregates
underwent
situ
oxidation
transformed
into
1D
nanoarchitectures,
exhibiting
macroscopic
chirality,
active
Cotton
circularly
polarized
luminescence.
Oxidation
could
also
initiate
intimate
interplay
between
building
units
guest
molecule,
evolution
multiple
component
assembly
system
realized.
Chemistry of Materials,
Год журнала:
2024,
Номер
36(23), С. 11449 - 11461
Опубликована: Ноя. 20, 2024
Transfer
of
chirality,
or
transmission
asymmetric
information
from
one
system
to
another,
plays
an
essential
role
in
fundamental
biological
and
chemical
processes
and,
therefore,
is
for
life.
This
phenomenon
also
holds
immense
potential
spintronics
the
context
chirality-induced
spin
selectivity
(CISS).
In
CISS,
spatial
arrangement
chiral
molecules
influences
state
electrons
during
charge-transfer
processes.
chirality
achiral
material
a
hybrid
environment
enables
induction
polarization
material,
thus
vastly
expanding
library
CISS-active
electronic
materials.
Such
"induced"
CISS
signals
could
have
different
responses
compared
pure
because
properties
come
into
play
former
case.
addition,
multiple
sources
can
be
used,
which
nontrivial
contribution
induced
effect
act
either
synergistically
antagonistically.
opens
way
achieving
tunability
via
means.
Earlier,
such
chirality-transfer
resulting
were
demonstrated
containing
carbon
nanotubes
(CNTs)
functionalized
with
agent
(Fmoc-diphenylalanine
l/d).
this
context,
we
extend
result
by
investigating
additional
moiety
(l-lysozyme
enzyme
crystals)
system.
Here,
crystal
surrounds
chiral-functionalized
CNTs,
show
that
synergistic
interactions
more
efficient
transfer,
changes
effect.
manifests
form
(a)
stronger
signal
only
single
agent,
(b)
nonmonotonic
temperature
dependence
sign
reversal
signal,
(c)
persistence
at
higher
temperatures.
Hybrid
materials
could,
offer
intricate
control
modification
its
constituents,
not
possible
homogeneous
systems
sources.
Topochemical
reactions
normally
occurring
in
the
solid
and
crystalline
state
exhibit
solvent-free
catalyst-free
properties,
with
high
atom
economy
which
have
been
widely
applied
materials
science
polymer
synthesis.
Herein,
we
explore
potential
of
topochemical
for
controlling
emergence
supramolecular
chirality
precise
fabrication
chiroptical
materials.
Boronic
acid
pinacol
esters
(BPin)
were
conjugated
to
naphthalimides
containing
an
inherent
chiral
cholesteryl
group
linked
by
alkyl
or
benzene
spacers.
The
BPin
segments
oxidized
H2O2
form
hydroxyl
groups,
enhanced
luminescence,
reduced
steric
effects,
increased
amphiphilicity.
liposomal
aggregates
underwent
situ
oxidation
transformed
into
1D
nanoarchitectures,
exhibiting
macroscopic
chirality,
active
Cotton
circularly
polarized
luminescence.
Oxidation
could
also
initiate
intimate
interplay
between
building
units
guest
molecule,
evolution
multiple
component
assembly
system
realized.
