Molecules,
Journal Year:
2023,
Volume and Issue:
28(19), P. 6826 - 6826
Published: Sept. 27, 2023
Due
to
their
fascinating
topological
structures
and
application
prospects,
coordination
supramolecular
complexes
have
continuously
been
studied
by
scientists.
However,
the
controlled
construction
property
study
of
organometallic
handcuffs
remains
a
significant
challenging
research
subject
in
area
chemistry.
Hence,
series
tetranuclear
heterometallic
bearing
different
size
metal
types
were
rationally
designed
successfully
synthesized
utilizing
quadridentate
pyridyl
ligand
(tetra-(3-pyridylphenyl)ethylene)
based
on
three
Cp*Rh
(Cp*
=
η5-C5Me5)
fragments
specific
longitudinal
dimensions
conjugated
planes.
These
results
determined
with
single-crystal
X-ray
diffraction
analysis
technology,
ESI-MS
NMR
spectroscopy,
etc.
Importantly,
photoquenching
effect
Cp*
groups
discrepancy
intermolecular
π-π
stacking
interactions
between
building
block
half-sandwich
promote
markedly
photothermal
conversion
results.
will
further
push
synthesis
development
materials.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
63(4)
Published: Nov. 30, 2023
The
use
of
2,5-diformylpyrrole
in
self-assembly
reactions
with
diamines
and
Zn(II)/Cd(II)
salts
allowed
the
preparation
[2]catenane,
trefoil
knot,
Borromean
rings.
intrinsically
dynamic
nature
diiminopyrrole
motif
rendered
all
formed
assemblies
intramolecularly
flexible.
presence
revealed
new
coordination
motifs
influenced
host-guest
chemistry
systems,
as
illustrated
by
hexafluorophosphate
encapsulation
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(46)
Published: Oct. 3, 2023
By
exploiting
coordination-driven
self-assembly,
high
yields
of
two
818
molecular
metalla-knots
could
be
obtained
using
a
thiazole-moiety-containing
asymmetric
dipyridyl
ligand
2-(pyridin-4-yl)-5-(pyridin-4-ylethynyl)benzo[d]thiazole
(L1
),
as
confirmed
X-ray
crystallographic
analysis,
electrospray
ionization-time-of-flight/mass
spectrometry
(ESI-TOF/MS),
and
detailed
liquid-state
nuclear
magnetic
resonance
(NMR)
spectroscopy.
To
modulate
the
self-assembled
structures,
m-chloroperbenzoic
acid
(m-CPBA)
was
utilized
to
oxidize
thiazole-based
L1
N-thiazole-oxide-based
3-oxide
(L2
which
enabled
selective
construction
corresponding
tetranuclear
macrocycles.
Notably,
topologically
transformed
from
knots
simple
monocycles
because
alkyne
bond
inert
toward
m-CPBA,
by
NMR
spectroscopy,
ESI-TOF/MS,
elemental
analysis.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 20, 2024
In
this
work,
a
noncoplanar
terphenyl
served
as
building
block
to
synthesize
novel
3,3'-substituted
bipyridyl
ligand
(L1)
which
further
reacted
with
binuclear
half-sandwich
units
A/B,
giving
rise
two
aesthetic
4
Chinese Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 30, 2025
Comprehensive
Summary
Research
into
controlling
the
self‐assembly
of
discrete
porous
organic
cages
(POCs)
with
specific
geometries
and
functions
is
difficult,
but
important
for
understanding
their
structure‐property
relationship,
as
well
behavior
in
supramolecular
chemistry.
Herein,
we
report
two
POCs
based
on
same
tetraformyl‐functionalized
calix[4]resorcinarene
(C4RACHO)
2,4‐diaminophenol
dihydrochloride
(DAP)
building
blocks,
including
a
[3+6]
triangular
prism
(
CPOC‐201‐OH
)
[4+8]
square
CPOC‐401‐OH
),
determined
by
single
X‐ray
crystallographic
analysis.
Both
exhibit
large
intrinsic
cavities,
rich
oxygen
sites,
high
porosity
Brunauer–Emmett–Teller
(BET)
surface
areas
up
to
966
m
2
·g
–1
.
Owing
such
virtues,
both
can
effectively
capture
iodine
aqueous
media
removal
rate
>
99%
within
min.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(16), P. 5026 - 5033
Published: Jan. 1, 2024
Minor
differences
among
pyridine
ligands
led
to
[2]-catenanes
with
dramatically
different
stacking
modes
of
the
building
blocks,
which
facilitated
production
assemblies
photothermal
conversion
abilities.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(23)
Published: April 4, 2024
Abstract
Through
a
coordination‐driven
self‐assembly
method,
four
metalla‐links
and
one
tetranuclear
monocycle
were
constructed
with
high
selectivity
yield
by
adjusting
the
substituent
species
of
building
blocks,
as
evidenced
using
X‐ray
crystallographic
analysis,
electrospray
ionization‐time‐of‐flight/mass
spectrometry
(ESI‐TOF/MS),
elemental
analysis
detailed
solution‐state
nuclear
magnetic
resonance
(NMR)
spectroscopy.
Based
on
independent
gradient
model
significant
factor
leading
to
formation
was
introduction
F,
Cl,
Br
I
atoms,
which
generated
additional
weak
C−H⋅⋅⋅X
(X=F,
I)
interactions.
Furthermore,
dynamic
conversion
monocyclic
rings
in
methanol
solution
systematically
investigated
quantitative
1
H
NMR
techniques.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(40)
Published: July 5, 2024
Abstract
In
this
work,
a
noncoplanar
terphenyl
served
as
building
block
to
synthesize
novel
3,3′‐substituted
bipyridyl
ligand
(
L1
)
which
further
reacted
with
binuclear
half‐sandwich
units
A/B
,
giving
rise
two
aesthetic
4
1
metalla‐knots
in
high
yields
via
coordination‐driven
self‐assembly
strategy.
Furthermore,
given
the
inherent
compactness
of
metalla‐knots,
it
creates
favorable
conditions
for
emergence
steric
repulsion.
We
focused
on
progressively
introducing
nitrogen
atoms
featuring
lone
pair
electrons
(LPEs)
into
manipulate
balance
H⋅⋅⋅H/LPEs⋅⋅⋅LPEs
repulsion
during
assembly
process,
ultimately
achieving
controlled
from
pseudo
‐Solomon
link
and
then
molecular
tweezer‐like
facilitated
by
stacking
interactions.
All
assemblies
were
well
characterized
solution‐state
NMR
techniques,
ESI‐TOF/MS,
single‐crystal
X‐ray
diffraction.
The
evolutionary
process
topological
architectures
is
equivalent
visualizing
synergistic
effect
hindrance
interactions
structural
assembly,
providing
new
avenue
synthesis
different
topologies.