Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 23, 2024
Abstract
A
subtle
interplay
between
the
flexibility
of
2,2’‐bipyridyl‐based
diamine
and
denticity
coordination
domain
formed
upon
self‐assembly
enabled
formation
four
distinct
topologies
stabilised
by
[Ag⋅⋅⋅Ag]
2+
pairs.
The
reactions
utilising
2,6‐diformylpyridine
resulted
in
silver(I)‐stabilised
molecular
tweezer,
trefoil
knot,
Solomon
link.
1,8‐naphthyridine‐based
dialdehyde
promoted
[2]catenanes
demonstrating
very
close
Ag
I
⋅⋅⋅Ag
distances.
Two
studied
assemblies
demonstrated
interesting
luminescent
properties
solid
state.
Molecules,
Год журнала:
2025,
Номер
30(3), С. 462 - 462
Опубликована: Янв. 21, 2025
Metal–organic
cages
(MOCs)
are
discrete
supramolecular
entities
consisting
of
metal
nodes
and
organic
connectors
or
linkers;
MOCs
noted
for
their
high
porosity
processability.
Chemically,
they
can
be
post-synthetically
modified
(PSM)
new
functional
groups
introduced,
presenting
attractive
qualities,
it
is
expected
that
properties
will
differ
from
those
the
original
compound.
This
why
highly
regarded
in
fields
biology
chemistry.
The
present
review
deals
with
current
PSM
strategies
used
MOCs,
including
covalent,
coordination,
noncovalent
methods
structural
benefits.
main
emphasis
this
to
show
what
extent
under
circumstances
a
MOC
designed
obtain
tailored
geometric
architecture.
Although
sometimes
unclear
when
examining
systems,
particularizing
design
systematic
approaches
development
characterization
families
provides
insights
into
structure–function
relationships,
which
guide
future
developments.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
The
self-assembly
of
metallo-supramolecules
has
attracted
considerable
attention
in
recent
decades.
These
discrete
architectures
are
primarily
driven
by
coordination
interactions,
typically
involving
M-N/O
(Werner-type)
or
M-C
(organometallic)
bonding.
However,
the
use
M-π
interactions
for
constructing
these
multinuclear
complexes
remains
largely
unexplored.
In
this
work,
we
report
trinuclear
and
tetranuclear
copper(I)
a
combination
interactions.
Cu(I)-NHC
were
synthesized
from
nido-carborane-supported
N-heterocyclic
carbene
(NHC)
precursors
Cu(I)
ions.
solution,
dynamic
equilibrium
between
species
was
observed,
as
confirmed
variable-temperature
NMR
spectrum.
Van't
Hoff
analysis
revealed
that
is
endothermic
(ΔHeq
=
53.6
kJ
mol-1)
entropically
(ΔSeq
158
J
mol-1
K-1).
solid-state
structures
both
forms
elucidated
through
single-crystal
XRD
analysis.
Density
functional
theory
calculations
showed
Cu-CNHC
bonds
relatively
weak
(∼100
mol-1,
approximately
one-third
strength
typical
bonds).
This
attributed
to
strong
Coulombic
attraction
positively
charged
negatively
nido-carborane
ligands
(M-π
interactions),
which
significantly
reduces
bond
neutral
NHC
moieties
(M-C
bonding).
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 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
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(38), С. 26427 - 26434
Опубликована: Сен. 6, 2024
Realizing
topological
transformation
through
supramolecular
fusion
is
particularly
challenging,
as
the
self-assembly
of
disparate
components
often
results
in
orthogonal
assembly
building
blocks
into
distinct
structures
rather
than
formation
a
heteroleptic
architecture.
This
study
introduces
transformation,
transitioning
from
figure-eight
knot
(4
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(44), С. 30222 - 30230
Опубликована: Окт. 23, 2024
Molecular
transformation
behavior
within
a
mechanically
interlocked
system
is
often
assisted
by
chemical
manipulation,
such
as
the
inclusion
of
guest
molecules,
variation
in
solution
concentration,
or
swapping
solvents.
We
present
this
report
synthesis
ruthenium
metal
and
π-conjugated
pyrene-based
(2
+
2)
Proceedings of the National Academy of Sciences,
Год журнала:
2025,
Номер
122(18)
Опубликована: Май 2, 2025
Supported
by
chiral
stationary
phase
high-performance
liquid
chromatography
HPLC
(CSP-HPLC),
examples
of
mechanically
interlocked
organic
molecules,
including
knots,
rotaxanes,
and
catenanes,
have
been
reported.
However,
the
exploration
stereoselective
construction
cationic
complexes,
particularly
those
induced
point
chirality,
has
notably
limited
due
to
constraints
posed
type
chromatographic
columns
separation
efficiency.
To
address
this,
we
developed
a
strategy
for
generating
coconformational
helical
topologically
[2]catenanes
through
induction
chirality.
In
this
study,
adjusting
symmetry
ligand,
easily
realized
efficient
high-yield
crystalline
[2]catenanes.
Moreover,
within
enantiomerically
pure
environment
molecular
self-assembly
driven
L
-alanine
-valine
residues
in
bidentate
ligands,
exist
exclusively
as
single
enantiomer,
thus
eliminating
need
laborious
CSP-HPLC
from
racemic
mixtures.
The
generation
opposite
enantiomer
can
be
employing
unsymmetrical
ligands
containing
corresponding
D
residues,
confirmed
single-crystal
X-ray
diffraction,
elemental
analysis,
electrospray-ionization
time-of-flight
mass
spectrometry,
solution-state
NMR
spectroscopy,
circular
dichroism
spectroscopy.
