Journal of Materials Chemistry B,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 16, 2024
Ultrasmall
metal
nanoclusters
(NCs,
<2
nm)
have
emerged
as
a
novel
class
of
photoluminescent
bioimaging
probes.
This
review
article
examines
how
NC-based
probe
is
designed
with
desired
functionalities
for
applications.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
147(9), С. 7325 - 7335
Опубликована: Фев. 18, 2025
Helicates
are
a
defining
element
of
DNAs
and
proteins,
with
functions
that
critical
to
variety
biological
processes.
Cyclodextrins
promising
candidates
for
forging
multiple-stranded
helicates
well-defined
helicity,
but
lack
available
tools
has
precluded
the
construction
artificial
helical
nanochannels
controllable
geometry
helicity
from
these
widely
chiral
building
blocks.
Herein,
we
disclose
family
Ag6L2
can
be
readily
assembled
α-cyclodextrin-derived
ligands
through
coordination
between
pyridinyl
groups
Ag+
cations.
We
discovered
exhibit
either
an
M
or
P
when
cations
adopt
tetrahedral
while
losing
most
their
linearly
coordinated.
Both
precisely
controlled
by
simply
changing
number
methyl
at
ortho
positions
ligands.
The
tetracoordinated
interconnect
into
infinite
two-dimensional
coordinative
network
characterized
hexagonal
tessellation.
Theoretical
calculations,
which
reveal
lower
energies
conformations
observed
in
crystals
compared
those
inverted
counterparts,
support
experimental
results.
Accounts of Chemical Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 28, 2025
ConspectusMetal
nanoclusters,
distinguished
by
their
atom-precise
structures
and
quantum
size
effect,
are
regarded
as
a
crucial
bridge
between
organometallic
complexes
plasmonic
metal
nanoparticles.
These
nanoclusters
primarily
composed
of
metallic
core
enveloped
protective
ligands,
wherein
the
ligands
play
vital
role
in
determining
nanoclusters'
synthesis,
structural
integrity,
physicochemical
properties.
Considerable
efforts
ligand
engineering
have
concentrated
on
exploring
novel
coordinating
functional
groups
to
advance
nanocluster
research,
particularly
precise
controlled
synthesis
superatomic
fine-tuning
intrinsic
properties,
subsequent
assembly
application.
However,
backbone
these
seems
equally
important
but
attracts
less
attention.
It
is
reasonable
that
if
utility
two
moieties
(coordinating
group
backbone)
provokes
profound
synergistic
contributions
properties
resultant
extremely
inestimable.
In
this
context,
carborane,
with
its
spherical
shape
three-dimensional
aromaticity
(electronic
effect),
has
emerged
promising
candidate
for
design.
Over
past
decades,
incorporation
carborane
into
enabled
construction
various
exhibiting
distinct
architectures,
enhanced
stability,
unique
reactivity.
Therefore,
it
present
current
status
challenges
associated
carboranyl
ligand-protected
guide
future
development.
This
Account
provides
comprehensive
summary
recent
advances
ligand-stabilized
primary
focus
from
our
laboratory.
We
begin
discussing
advantages
introducing
carborane-based
preparation,
particular
emphasis
virtues
heterometal-doped
isostructural
nanoclusters.
Subsequently,
we
summarize
strategies
modification
hierarchical
elucidating
how
facilitates
modulation
specific
promotes
supramolecular
covalent
assembly.
Furthermore,
discuss
cooperativity
achieved
framework
broaden
scope
applications
versatile
fields,
including
hypergolic
fuels,
previously
unexplored
area.
Finally,
facing
research
nido-carborane
or
metallocarborane,
fundamental
understanding
structure–property
relationships,
potential
such
boron
neutron
capture
therapy
radionuclide
extraction.
aims
stimulate
interest
attributes
corresponding
among
students
researchers
across
diverse
disciplines,
chemistry,
crystal
engineering,
materials
science.
Organic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(23), С. 6706 - 6711
Опубликована: Янв. 1, 2024
Pd(
ii
)-catalyzed
selective
B(9)-alkynylation
of
o
-carboranes
and
m
with
i
Pr
3
SiCCBr
as
the
alkynylated
reagent
was
developed.
Further
transformation
products
provided
diverse
carborane
derivatives.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Окт. 23, 2024
Achieving
precise
and
controllable
hierarchical
self-assembly
of
functional
nanoclusters
within
crystal
lattices
to
create
distinct
architectures
is
immense
significance,
yet
it
creates
considerable
challenges.
Here
we
successfully
synthesized
a
silver
nanowheel
Ag
Analytical Chemistry,
Год журнала:
2024,
Номер
96(49), С. 19632 - 19640
Опубликована: Ноя. 27, 2024
To
address
the
challenge
of
chiral
recognition
in
terms
efficiency
and
generality,
we
propose
a
novel
fluorescence
sensing
approach
by
rationally
designing
metal-ion-responsive
molecular
tweezers.
The
flexible
adaptable
tweezers
enable
facile
31
structurally
varied
primary
amine
compounds,
including
amino
acids,
acid
esters,
amines.
Notably,
upon
stimulation
zinc
ions,
demonstrate
higher
enantioselective
response.
Combined
density
functional
theory
calculations
reveal
that
mechanism
relies
on
differential
reaction
rates
potential
hydrogen-bonding
interactions
between
two
enantiomers
receptor,
which
results
one
forming
more
abundant,
stable,
rigid
complex
with
resulting
significant
increase
intensity
enantioselectivity.
stimuli-responsive
provides
strategy
for
precise
stereocontrol
universality
recognition,
offering
promising
tool
applications
various
fields.
The
electrochemistry
recognition
of
enantiomeric
chiral
molecules
holds
great
significance
for
the
pharmaceutical
industry
and
scientific
research.
However,
enhancing
sensitivity
selectivity
simultaneously,
elucidating
mechanism,
are
two
primary
challenges.
Here,
an
electrochemical
sensor
L-C4-PMoV/GO
is
developed
by
confining
imidazole
cations
(L-C4)
[PMo10V2]5-
(PMoV)
signal
anions
within
interlayer
graphene
oxide
(GO).
highly
sensitive
to
towards
drug
Levodopa
(L-DOPA),
which
exhibits
16
times
higher
than
L-C4/GO.
In
addition,
enantioselectivity
ΔS
=
19.92
achieved.
Mechanism
studies
suggest
that
confinement
effect
plays
a
crucial
role
in
synergism
between
site
PMoV
L-C4.
chiral-confined
microenvironment,
induction
from
L-C4
facilitated,
results
distortion
Mo
(V)─O
bonds.
hydrogen-bonding
networks
among
L-C4,
(V)─O,
DOPA
generate
adsorption
energy
difference
L/D-DOPA,
as
revealed
situ
Raman
spectroscopy
theoretical
calculation.
Compared
conventional
techniques,
shows
comparable
enantiomer
excess
(ee)
value
determination,
low
limits
detection
(LOD)
(6.7
nm
L-DOPA,
50.6
D-DOPA),
portability,
enabling
practical
recognition.
ABSTRACT
Chirality
is
a
fundamental
property
in
molecules
and
biological
systems,
characterized
by
asymmetric
configurational
features.
Circularly
polarized
luminescence
(CPL)
materials
have
gained
significant
attention
due
to
their
unique
optical
activities,
with
applications
3D
displays,
chiral
sensors,
catalysis,
more.
Chiral
transfer
amplification
typically
involve
the
generation
of
chirality
excited
state,
facilitated
interactions
like
energy
transfer,
electron
or
induction.
Supramolecular
self‐assembly
strategies,
particularly
macrocyclic
compounds,
enable
linking
achiral
luminescent
units
through
intermolecular
interactions.
Macrocyclic
hosts—cyclodextrins,
calix[
n
]arenes,
pillar[
cyclophanes,
cucurbit[
]urils—are
especially
promising
stable
structures
adjustable
cavities
for
guest
encapsulation.
These
compounds
induce
photophysical
properties
host–guest
complexation,
making
them
ideal
constructing
amplification,
CPL‐active
materials.
This
review
summarizes
advancements
multicolor
CPL
materials,
sensing,
induction,
separation,
highlighting
potential
supramolecular
material
design.
The
challenges
future
directions
this
field
are
also
discussed,
aiming
guide
further
research
application
systems.