Chemical Communications,
Journal Year:
2022,
Volume and Issue:
58(66), P. 9234 - 9237
Published: Jan. 1, 2022
The
largest
known
polyoxovanadate-templated
silver
nanocluster
(Ag50)
was
synthesized,
and
the
box-like
{V
10
O
28
@Ag
50
}
structure
displays
geometric
inheritance
from
internal
decavanadate
to
skeleton.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(11), P. 7262 - 7378
Published: May 2, 2024
Ligand-protected
metal
clusters
possess
hybrid
properties
that
seamlessly
combine
an
inorganic
core
with
organic
ligand
shell,
imparting
them
exceptional
chemical
flexibility
and
unlocking
remarkable
application
potential
in
diverse
fields.
Leveraging
to
expand
the
library
of
available
materials
stimulate
development
new
functionalities
is
becoming
increasingly
pressing
requirement.
This
Review
focuses
on
origin
from
structural
analysis,
including
intra-cluster
bonding,
inter-cluster
interactions,
cluster-environments
metal-to-ligand
ratios,
thermodynamic
effects.
In
introduction,
we
briefly
outline
explain
differences
commonalities
M(I)/M(I/0)
coinage
clusters.
Additionally,
distinguish
bonding
characteristics
atoms
core,
which
give
rise
their
distinct
flexibility.
Section
2
delves
into
categories,
theories
related
following
sections
3
7,
primarily
elucidate
mechanisms
trigger
flexibility,
dynamic
processes
transformation,
resultant
alterations
structure,
ensuing
modifications
physical–chemical
properties.
8
presents
notable
applications
have
emerged
utilizing
assemblies.
Finally,
section
9,
discuss
future
challenges
opportunities
within
this
area.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
63(7)
Published: Dec. 28, 2023
Abstract
The
syntheses
of
atomically
precise
silver
(Ag)
clusters
stabilized
by
multidentate
lacunary
polyoxometalate
(POM)
ligands
have
been
emerging
as
a
promising
but
challenging
research
direction,
the
combination
redox‐active
POM
and
will
render
them
unexpected
geometric
structures
catalytic
properties.
Herein,
we
report
successful
construction
two
structurally‐new
POM‐stabilized
Ag
clusters,
TBA
6
H
14
(DPPB)
4
(CH
3
CN)
9
[Ag
24
(Si
2
W
18
O
66
)
]
⋅
10CH
CN
9H
(
{Ag
}
,
TBA=tetra‐
n
‐butylammonium,
DPPB=1,4‐Bis(diphenylphosphino)butane)
Na
(H
O)
27
8CH
10H
),
using
facile
one‐pot
solvothermal
approach.
Under
otherwise
identical
synthetic
conditions,
molecular
could
be
readily
tuned
addition
different
organic
ligands.
In
both
compounds,
central
trefoil‐propeller‐shaped
14+
17+
bearing
10
delocalized
valence
electrons
are
three
C‐shaped
{Si
units.
femtosecond/nanosecond
transient
absorption
spectroscopy
revealed
rapid
charge
transfer
between
core
Both
compounds
pioneeringly
investigated
catalysts
for
photocatalytic
CO
reduction
to
HCOOH
with
high
selectivity.
Polyoxometalates,
Journal Year:
2022,
Volume and Issue:
1(2), P. 9140010 - 9140010
Published: Oct. 19, 2022
The
design
and
construction
of
polyoxometalate
(POM)-templated
silver
clusters
have
received
increasing
attention,
not
only
due
to
their
aesthetic
structures
but
also
wide
applications
in
chromatic
materials,
magnetism,
electronics,
fluorescence.
Among
various
POM-templated
clusters,
asymmetrically-wrapped
POM–silver
unusual
structures:
POMs
exposed
surfaces
an
asymmetrically-connected
shell,
which
endows
the
with
distinctive
properties,
such
as
redox
electrocatalytic
activities.
This
review
summarizes
recent
developments
this
field,
highlighting
syntheses,
structures,
properties
clusters.
formation
mechanisms,
challenges,
perspectives
are
discussed.
We
believe
that
will
motivate
development
asymmetrical
templation
effect
POM
Aggregate,
Journal Year:
2022,
Volume and Issue:
4(2)
Published: Aug. 26, 2022
Abstract
It
is
of
great
interest
to
modulate
the
photophysical
properties
by
atomically
precise
chemical
control.
The
incorporation
conjugated
ligands
into
crystalline
materials
provides
a
platform
for
molecular‐level
interpretation
structure‐activity
relationship.
Herein,
we
reported
phenol‐thermal
and
scale‐up
synthesis
new
family
remarkably
stable
aluminum
molecular
rings.
They
are
assembled
twenty
Al
III
ions
with
large
phenols,
representing
currently
largest
sizes
(up
4
nm
in
diameter)
field
main
group
metal
oxo
clusters.
Phenols
not
only
reaction
medium
but
also
auxiliary
bridging
on
surface
macrocyclic
molecules.
In
addition,
they
either
parallel
center
ring
or
inserted
ring,
form
dimers/tetramers
that
bind
molecules
supramolecular
structures.
These
rings
hydrophobic
ultra‐stable,
evidenced
retaining
their
morphology
when
exposed
air
more
than
year.
Compared
pristine
ligands,
exhibit
coordination‐enhanced
fluorescence.
By
dispersing
them
polydimethylsiloxane
(PDMS)
matrix,
prepared
transparent
flexible
PDMS
thin
films
coupling
display
nonlinear
optical
application.
Our
discovery
such
fine‐tuning
photo‐related
performances.
Science and Technology of Advanced Materials,
Journal Year:
2023,
Volume and Issue:
24(1)
Published: April 18, 2023
Metal
nanoclusters
(NCs)
are
gaining
much
attention
in
nanoscale
materials
research
because
they
exhibit
size-specific
physicochemical
properties
that
not
observed
the
corresponding
bulk
metals.
Among
them,
silver
(Ag)
NCs
can
be
precisely
synthesized
only
as
pure
Ag
but
also
anion-templated
NCs.
For
NCs,
we
expect
following
capabilities:
1)
size
and
shape
control
by
regulating
central
anion
(anion
template);
2)
stabilization
adjusting
charge
interaction
between
surrounding
atoms;
3)
functionalization
selecting
type
of
anion.
In
this
review,
summarize
synthesis
methods
influences
on
geometric
structure
which
include
halide
ions,
chalcogenide
oxoanions,
polyoxometalate,
or
hydride/deuteride
This
summary
provides
a
reference
for
current
state
may
promote
development
with
novel
structures
properties.
ACS Applied Nano Materials,
Journal Year:
2022,
Volume and Issue:
5(5), P. 7571 - 7579
Published: May 2, 2022
The
phenomenon
of
aggregation-induced
emission
(AIE)
is
an
emerging
strategy
used
to
tune
the
optical
properties
luminescent
metal
nanoclusters
(MNCs).
Various
external
factors
such
as
cations,
hydrophobicity,
and
solvents
provide
impetus
for
AIE
in
MNCs.
Our
present
investigations
delineate
remarkable
tuning
photophysical
weakly
mercaptosuccinic
acid
(MSA)-templated
silver
(AgNCs).
Upon
AgNCs
through
introduction
Zn2+
ions,
maximum
was
shifted
from
∼465
∼670
nm
with
unusual
augmentation
photoluminescence
intensities
(∼3000
times).
minimization
energy
dissipation
due
formation
Zn2+-induced
rigid
assembly
mainly
accounts
these
unprecedented
signatures.
As
a
consequence
this,
otherwise
emissive
AgNC
system
(quantum
yield,
QY
∼
0.1%)
gets
converted
highly
red-emitting
(Zn–AgNCs,
2%).
MSA-templated
demonstrated
selectivity
toward
ions
forming
Zn–AgNC
assemblies,
which
turn
were
sensitive
pH
medium
range
5–8.
Chemical Science,
Journal Year:
2022,
Volume and Issue:
13(19), P. 5531 - 5538
Published: Jan. 1, 2022
The
controllable
preparation
of
metal
nanoclusters
in
high
yield
is
an
essential
prerequisite
for
their
fundamental
research
and
extensive
application.
Here
a
synthetic
approach
termed
"dual-level
kinetic
control"
was
developed
to
fabricate
family
new
silver
nanoclusters.
introduction
secondary
ligands
first
exploited
retard
the
reduction
rate
accomplish
first-level
control.
And
cooling
reaction
performed
further
slow
down
second-level
A
atomically
precise
(including
[Ag25(SR)18]-,
[Ag34(SR)18(DPPP)3Cl4]2+,
[Ag36(SR)26S4]2+,
[Ag37(SR)25Cl1]+,
[Ag52(SR)28Cl4]2+)
were
controllably
prepared
structurally
determined.
hopefully
acts
as
powerful
tool
manufacture
more
with
unprecedented
compositions,
structures,
properties.