Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 30, 2024
Host-guest
dynamic
systems
in
coordination-driven
metallo-organic
cages
have
gained
significant
attentions
since
their
promising
applications
chiral
separation,
drug
delivery,
and
catalytical
fields.
To
maximize
guest-binding
affinity,
hosts
adopting
multiple
conformations
are
widely
investigated
on
structural
flexibility
for
guest
accommodation.
In
this
study,
a
novel
cage
S
with
breathing
inner
cavity
freely
twisted
side
chains
was
proposed.
Single-crystal
X-ray
diffraction
analyses
depicted
characteristic
"breathing-helical"
system
the
semiflexible
framework,
which
led
to
an
unprecedent
co-crystallisation
of
racemic
symmetric
via
encapsulation
locking
C
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(33)
Published: June 6, 2024
Abstract
One‐step
purification
of
ethylene
from
ternary
mixtures
(C
2
H
,
C
4
and
6
)
can
greatly
reduce
the
energy
consumption
separation
process,
but
it
is
extremely
challenging.
Herein,
we
use
crystal
engineering
reticular
chemistry
to
introduce
unsaturated
bonds
(ethynyl
alkyne)
into
ligands,
successfully
design
synthesized
two
novel
Zr‐MOCs
(ZrT‐1‐ethenyl
ZrT‐1‐alkyne).
The
introduction
carbon‐carbon
provides
abundant
adsorption
sites
within
framework
while
modulating
pore
window
size.
Comprehensive
characterization
techniques
including
single
powder
X‐ray
diffraction,
as
well
electrospray
ionization
time‐of‐flight
mass
spectrometry
(ESI‐TOF‐MS)
confirm
that
ZrT‐1‐ethenyl
ZrT‐1‐alkyne
possess
an
isostructural
with
ZrT‐1
ZrT‐1‐Me,
respectively.
Adsorption
isotherms
breakthrough
experiments
combined
theoretical
calculations
demonstrate
effectively
remove
trace
in
achieve
CO
.
also
directly
purify
liquid
solutions.
This
work
a
benchmark
for
MOCs
one‐step
mixtures.
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(24)
Published: Jan. 31, 2024
Abstract
Metal‐organic
cages
(MOCs)
are
supramolecular
coordination
complexes
that
have
internal
cavities
for
hosting
guest
molecules
and
exhibiting
various
properties.
However,
the
functions
of
MOCs
limited
by
choice
building
blocks.
Post‐synthetic
modification
(PSM)
is
a
technique
can
introduce
new
functional
groups
replace
existing
ones
on
without
changing
their
geometry.
Among
many
PSM
methods,
covalent
promising
approach
to
modify
with
tailored
structures
functions.
Covalent
be
applied
either
cavity
or
external
surface
MOCs,
depending
functionality
expected
customized.
there
still
some
challenges
limitations
in
field
such
as
balance
between
stability
harshness
organic
reactions
involved
PSMs.
This
concept
article
introduces
reaction
types
applications
after
modification,
summarizes
provides
an
outlook
this
research
field.
Small Structures,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 8, 2024
Metal–covalent
organic
frameworks
(MCOFs)
combining
the
advantages
of
open
metal
sites
metal–organic
and
covalent
connections
COFs
are
potential
platform
for
gas
separation.
Herein,
three
2D
cuprous‐based
MCOFs
(Cu‐COFs,
named
Cu‐TABA,
Cu‐TFBA,
Cu‐TP)
designed
synthesized
through
Schiff
base
condensation
using
two
trinuclear
cuprous
complexes
building
blocks
with
different
sizes.
These
Cu‐COFs
possess
high
crystallinity,
good
stability,
microporous
structure
gradually
decreasing
pore
size.
The
1D
columnar
channels
facilitate
rapid
transport
molecules
along
layer‐by‐layer
stacking
direction.
ions
serve
as
adsorption
interact
strongly
propylene
(C
3
H
6
)
π
‐complexation.
mixed
matrix
membranes
(MMMs)
fabricated
by
polymer
(6FDA‐DAM)
exhibit
superior
propylene/propane
/C
8
separation
performance;
shown
C
permeability
85.5
Barrer
selectivity
reaching
36.6,
much
higher
than
those
pure
6FDA‐DAM
membrane.
performance
beyond
most
reported
MMMs
demonstrates
that
candidate
membrane
materials
Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
An
acridine-based
metallacycle
exhibits
stimuli-responsive
supramolecular
fluorescence
switching
between
the
monomer
and
excimer
states,
enabling
ratiometric
sensing
toward
2,4,6-trinitrophenol
(TNP).
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(22), P. 10108 - 10113
Published: May 21, 2024
Metal–organic
cages
(MOCs)
with
luminophores
have
significant
advantages
for
the
facile
detection
of
specific
molecules
based
on
turn-on
or
turn-off
luminescence
changes
induced
by
host–guest
complexation.
One
important
challenge
is
development
turn-on-type
near-infrared
(NIR)-luminescent
MOCs.
In
this
study,
we
synthesized
a
novel
MOC
consisting
two
porphyrin
dyes
linked
four
Yb(III)
complexes,
which
exhibit
bimodal
red
and
NIR
fluorescence
signals
upon
photoexcitation
π
system.
Single-crystal
X-ray
structural
analysis
computational
molecular
modeling
revealed
that
planar
aromatic
perfluorocarbons
were
intercalated
into
MOC.
The
tight
packing
between
guests
enhanced
suppressing
energy
transfer
from
photoexcited
to
oxygen
molecules.
Guest-responsive
in
an
successfully
demonstrated.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(33)
Published: June 6, 2024
Abstract
One‐step
purification
of
ethylene
from
ternary
mixtures
(C
2
H
,
C
4
and
6
)
can
greatly
reduce
the
energy
consumption
separation
process,
but
it
is
extremely
challenging.
Herein,
we
use
crystal
engineering
reticular
chemistry
to
introduce
unsaturated
bonds
(ethynyl
alkyne)
into
ligands,
successfully
design
synthesized
two
novel
Zr‐MOCs
(ZrT‐1‐ethenyl
ZrT‐1‐alkyne).
The
introduction
carbon‐carbon
provides
abundant
adsorption
sites
within
framework
while
modulating
pore
window
size.
Comprehensive
characterization
techniques
including
single
powder
X‐ray
diffraction,
as
well
electrospray
ionization
time‐of‐flight
mass
spectrometry
(ESI‐TOF‐MS)
confirm
that
ZrT‐1‐ethenyl
ZrT‐1‐alkyne
possess
an
isostructural
with
ZrT‐1
ZrT‐1‐Me,
respectively.
Adsorption
isotherms
breakthrough
experiments
combined
theoretical
calculations
demonstrate
effectively
remove
trace
in
achieve
CO
.
also
directly
purify
liquid
solutions.
This
work
a
benchmark
for
MOCs
one‐step
mixtures.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
16(1), P. 364 - 370
Published: Nov. 22, 2024
Self-assembly
of
ligand
L
and
Cd
II
ions
affords
two
metallo-organic
cage
CdII8L
4
conformers:
meta-stable
C
2h
-1
thermodynamically
favored
D
2
-2.
The
inclusion
guest
perfluorooctanoate
shifts
the
equilibrium
distribution
to
conformer
-1.
