International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(22), P. 11861 - 11861
Published: Nov. 5, 2024
Molecular
cages
are
preorganized
molecules
with
a
central
cavity,
typically
formed
through
the
reaction
of
their
building
blocks
chemical
bonds.
This
requires,
in
most
cases,
forming
and
breaking
reversible
bonds
during
cage
formation
pathway
for
error
correction
to
drive
product.
In
this
work,
we
focus
on
both
Pd-ligand
hydrazone
implemented
structure
Pd
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 14, 2024
Abstract
The
capture
of
radioactive
iodine
species
from
nuclear
waste
is
crucial
for
environmental
protection
and
human
health.
Porous
organic
cages
(POCs),
an
emerging
porous
material,
have
showed
potential
in
adsorption
due
to
the
advantages
tunable
pores
processibility.
However,
integrating
multiple
desirable
characteristics
into
a
single
POC
through
bottom‐up
assembly
pre‐designed
building
blocks
remains
challenging.
Post‐synthetic
modification
(PSM)
offers
alternative
approach,
enabling
introduction
various
functions
POC.
Herein,
viable
highly
efficient
three‐step
PSM
strategy
modify
representative
(CC3),
presented.
modified
POC,
OFT‐RCC3
6+
6Br
−
,
features
charged
confined
space,
electron‐rich
heteroatom,
halide
ions,
exhibiting
significantly
enhanced
vapor
uptake
compared
parental
cage.
universality
has
been
verified
by
successfully
modifying
two
other
POCs.
behaviors
three
cage
adsorbents
solvent
aqueous
solution
also
investigated,
all
which
exhibited
improved
performance,
especially
comparison
ionic
direct
protonation.
This
work
provides
effective
POCs
facilitate
adsorption.
More
importantly,
new
enriches
functional
diversity
POCs,
potentially
broadening
their
future
applications.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(21), P. 10380 - 10408
Published: Jan. 1, 2024
Stemming
from
early
seminal
notions
of
molecular
recognition
and
encapsulation,
three-dimensional,
cavity-containing
capsular
compounds
assemblies
have
attracted
intense
interest
due
to
the
ability
modulate
chemical
physical
properties
species
encapsulated
within
these
confined
spaces
compared
bulk
environments.
With
such
a
diverse
range
covalent
motifs
non-covalent
(supramolecular)
interactions
available
assemble
building
blocks,
an
incredibly
wide-range
capsular-type
architectures
been
developed.
Furthermore,
synthetic
tunability
internal
environments
gives
chemists
opportunity
engineer
systems
for
uses
in
sensing,
sequestration,
catalysis
transport
molecules,
just
name
few.
In
this
tutorial
review,
overview
is
provided
into
design
principles,
synthesis,
characterisation,
structural
facets
coordination
cages,
porous
organic
supramolecular
capsules,
foldamers
mechanically
interlocked
molecules.
Using
recent
examples,
advantages
limitations
each
system
are
explored,
highlighting
their
application
various
tasks
functions.
Crystal Growth & Design,
Journal Year:
2024,
Volume and Issue:
24(14), P. 6081 - 6094
Published: July 1, 2024
Due
to
their
unique
structural
characteristics,
molecular
cages
have
become
pivotal
components
in
supramolecular
chemistry
and
materials
science.
These
possess
the
remarkable
ability
encapsulate
guest
molecules
metal
nanoparticles
within
cavities,
fostering
intriguing
host–guest
interactions
demonstrating
significant
potential
across
various
domains,
including
recognition,
drug
delivery,
catalysis,
material
synthesis.
Integrating
these
with
highly
porous
crystalline
covalent
organic
frameworks
(COFs)
constitutes
a
strategic
avenue
for
enhancing
both
porosity
functional
sites.
This
transition
from
COF
involves
precise
orchestration
of
individual
into
extended,
covalently
bonded
structures
well-defined
porosity.
unlocks
novel
pathways
design
applications,
significantly
enriching
landscape
review
comprehensively
summarizes
synthetic
strategies
employed
fabricating
cage-based
COFs,
explores
diverse
provides
insights
future
prospects
growth
this
rapidly
evolving
field.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(30), P. 20963 - 20971
Published: July 20, 2024
In
the
realm
of
nanoscale
materials
design,
achieving
precise
control
over
dimensions
nanotubular
architectures
poses
a
substantial
challenge.
our
ongoing
pursuit,
we
have
successfully
engineered
novel
class
single-molecule
nanotubes─isoreticular
covalent
organic
pillars
(iCOPs)─by
stacking
formylated
macrocycles
through
multiple
dynamic
imine
bonds,
guided
by
principles
reticular
chemistry.
Our
strategic
selection
rigid
diamine
linkers
has
facilitated
synthesis
diverse
array
iCOPs,
each
retaining
homologous
structure
yet
offering
distinct
cavity
shapes
influenced
linker
choice.
Notably,
three
these
iCOP
variants
feature
continuous
one-dimensional
channels,
exhibiting
length-dependent
host-guest
interactions
with
α,ω-dibromoalkanes,
and
presenting
critical
guest
alkyl
chain
length
threshold
for
efficient
encapsulation.
This
newfound
capability
not
only
provides
platform
tailoring
structures
precision,
but
also
opens
new
avenues
innovative
applications
in
molecular
recognition
purification
complex
mixtures.
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
1,3,5-Tri(4-carboxyphenyl)benzene
was
first
crystallized
as
a
non-interpenetrated
hydrogen-bonded
organic
framework.
The
desolvated
structure
can
maintain
the
and
mesoporous
skeleton
which
is
stable
for
molecule
adsorption.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 28, 2025
Abstract
Constructing
a
metal‐free
adsorbent
for
one‐step
separation
of
C
2
H
4
from
mixture
gas
C2,
is
great
significance
and
challenging.
Here,
porous
aromatic
cage
(
PAC‐1
)
based
on
aldehyde‐amine
condensation
reported
with
diamond‐like
interconnected
cavity‐channel
pores
purification
ethylene.
exhibits
superior
(52.6
cm
3
g
−1
6
(46.7
uptakes
as
well
impressive
/C
selectivity
(1.5)
(1.4),
remaining
at
the
forefront
advanced
‐selective
adsorbents
non‐metallic
materials.
The
adsorption
enthalpy
(Q
st
23.6
kJ
mol
,
which
requires
less
energy
to
regenerate
than
conventional
MOF
Breakthrough
experiments
demonstrate
that
can
reduce
penetration
rate
or
through
adsorbent,
present
quite
valuable
gas.
Molecular
simulations
DFT
studies
have
shown
oxygen
sites
C─H
in
channels
are
more
favorable
anchor
interaction
over
by
1.48
kcal
C─H…π
point
cavity
preferred
1.16
turn
results
.
