ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
17(1), С. 2180 - 2189
Опубликована: Дек. 19, 2024
Two
dimensional
covalent
organic
framework
(2D
COF)
films
based
on
triphenylamine
are
considered
to
be
promising
electrochromic
and
energy-storage
materials
owing
their
interlayer
π–π
electron
delocalization,
one-dimensional
(1D)
nanopores,
stable
chemical
structures.
Triphenylamine-based
2D
COF
films,
nevertheless,
rarely
exhibit
transparency
high
optical
contrast,
which
severely
limited
the
scope
of
application.
In
this
work,
two
directly
grown
triphenylamine-based
polyimide
TAPA-PMDA
TAPA-NTCDA
PI
COF,
were
prepared
through
solvothermal
technology.
Their
morphologies
assembled
into
hierarchical
nanoporous
structures
in
form
strips
gravel-like
nanograins,
respectively.
Both
exhibited
a
transparent
bleached
state
contrast.
contrasts
77.6%
at
752
nm
60.4%
708
nm,
Interestingly,
film
could
multicolors
(transparent,
red-gray,
blue-gray)
regulating
contributions
transition
from
HOMO
SOMO
HOMO-1
TPA+•.
addition,
also
displayed
fast
switching
colored/bleached
times
7.3/2.7
5.3/8.1
s,
Remarkably,
demonstrated
large
specific
capacitance
excellent
charge–discharge
rate
capabilities.
The
enormously
for
high-performance
materials.
Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
This
Review
highlights
the
advancements
in
field
of
functional
organic
cocrystals
based
on
supramolecular
macrocycles,
detailing
their
design
principles,
preparation
strategies,
assembly
modes,
and
diverse
functions
applications.
Ortho-functionalization
of
pillar[n]arenes
has
been
a
formidable
challenge,
partially
due
to
the
fragility
their
macrocyclic
skeletons.
In
this
concise
report,
we
describe
facile
synthetic
method
for
monoarylation/alkylation
at
position
ortho
oxime
functionality
in
pillar[4]arene[1]benzoquinone
monoxime
(1)
via
addition
Grignard
reagents.
The
described
enables
creation
various
mono-ortho-alkyl/aryl-substituted
pillar[5]arene
derivatives
that
were
previously
inaccessible.
Chemical Society Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Here
we
summarize
the
progress
of
developing
crystalline
porous
framework
materials
with
supramolecular
macrocycles
for
their
applications
in
solid
state,
guiding
readers
through
future
chemistry,
and
commercialization.
Metal–covalent
organic
frameworks
(MCOFs),
an
emerging
type
of
porous
material,
have
the
combined
advantages
metal–organic
(MOFs)
and
covalent
(COFs).
Of
particular
interest
are
MCOF
nanosheets
with
two-dimensional
morphology,
whose
fully
exposed
active
sites
quasi-molecular
size
expected
to
exhibit
maximum
functionality
for
a
wide
range
applications.
However,
due
their
strong
interlayer
coupling
potential
structural
damage
during
synthesis
process,
preparation
has
rarely
been
reported.
Here,
we
demonstrate
cobalt-cluster-triggered
chemical
exfoliation
strategy
directly
prepare
ultrathin
from
bulk
COFs.
By
reaction
cobalt
carbonyl
alkynyl-based
COFs
at
room
temperature,
constructed
under
mild
conditions.
The
mechanism
direct
growth
includes
formation
stable
clusters
within
COF
skeletons,
which
alters
alkynyl
bonds
related
dihedral
angle
disrupts
interactions.
Consequently,
converted
into
nanosheets,
yield
40%,
average
lateral
0.8
μm,
thickness
1.6
nm.
This
lays
foundation
application
by
treating
carbonyl.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Since
their
discovery,
metal–organic
frameworks
(MOFs)
and
covalent
organic
(COFs)
featuring
permanent
nanopores
have
transformed
the
landscape
of
porous
materials,
excelling
as
platforms
for
catalysis,
gas
separation,
sensing
thanks
to
exceptional
surface
areas,
adjustable
pore
sizes,
modular
functionality.
However,
MOFs,
while
versatile,
face
stability
challenges
due
coordination
bonds,
whereas
COFs,
although
robust,
lack
metal
sites,
limiting
catalytic
activity,
redox
functionality,
other
metal-specific
applications.
To
bridge
these
gaps,
innovative
such
MCOFs,
which
incorporate
ions
into
COF
lattices;
cluster
frameworks,
formed
by
assembling
clusters
networks;
MOF–COF
composites,
integrate
strengths
both
systems,
emerged.
This
review
explores
synthesis
design
principles
advanced
showcasing
applications
unique
advantages
conferred
composite
nature.
It
provides
insights
future
directions
potential
address
key
in
materials
science
beyond.
