Polyoxometalates,
Год журнала:
2023,
Номер
2(4), С. 9140043 - 9140043
Опубликована: Ноя. 6, 2023
The
ligand
exchange-induced
size/structural
transformation
(LEIST)
reaction
of
metal
nanoclusters
gives
us
an
effective
way
to
understand
the
structural
transition,
broaden
synthesis
methods,
and
enhance
relevant
performance
nanoclusters.
features
unique
bonding
modes
phosphine
ligands
have
been
investigated
explore
"phosphine-LEIST"
reaction,
which
shows
advantages
in
nanoclusters'
modification
property
modulation.
This
review
focuses
on
ligand-induced
transformations
corresponding
catalytic
optical
regulation
An
introspective
outlook
is
also
presented
at
last
concerning
design
functional
for
further
evolution
atomically
precise
Chemistry - An Asian Journal,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 29, 2025
Abstract
As
the
new
type
of
molecular
catalysts,
hemilabile
ligand‐protected
Au
nanoclusters
hold
greater
promise
in
realizing
a
better
trade‐off
between
catalytic
activity
and
structural
stability.
Despite
large
amount
(co‐)protected
by
organic
nitrogen
ligands,
little
has
been
known
about
those
containing
dynamically
labile
Au─N
bonds,
where
ligands
are
solely
limited
to
pyridyl‐phosphine.
In
this
study,
we
chose
imidazolyl‐phosphine
(dpim)
as
main
protecting
ligand
synthesized
tetracationic
cluster
[Au
20
6
(dppe)
2
Cl
]
4+
(
‐S
,
dppe
=
Ph
P(CH
)
PPh
),
which
was
structurally
characterized
crystallographically,
spectroscopically,
computationally.
Albeit
similar
electronic
structure
core,
possesses
different
arrangements
positive
charges
from
its
two
reported
analogues,
thus
they
may
serve
an
ideal
triad
for
comparatively
studying
ligand/charge
effect
on
their
activities.
This
work
proved
potential
imidazolyl
phosphine
versatile
syntheses
NCs
with
bonds.
The
imidazolyl‐phosphines
more
amenable
derivatizations,
provides
opportunity
further
enriching
library
potentially
performance.
The
emerging
metal
nanoclusters
with
atomically
precise
structures
have
gained
considerable
attention
because
they
exhibit
promising
applications
in
various
fields
and
serve
as
ideal
models
for
studying
the
structure-property
correlation
of
nanoparticles.
Despite
significant
advances,
it
is
still
unclear
how
ligand
diastereomers
impact
stability
chirality
nanoclusters.
In
this
work,
we
systematically
studied
construction
gold
using
PNP
(PNP
=
2,6-bis(1-(diphenylphosphaneyl)ethyl)pyridine)
pincer
consisting
multiple
stereoisomers.
A
metastable
Au6
skeleton
was
found
to
be
a
key
intermediate,
which
can
controlled
aspects
by
selectively
produce
Au9(R,R-PNP)4,
Au9(S,S-PNP)4,
Au9(R,S-PNP)4,
Au6(R,S-PNP)2(R,R-PNP),
Au6(R,S-PNP)2(S,S-PNP)
intriguing
properties
such
self-sorting
spontaneous
resolution.
This
work
provides
strategy
regulating
diastereomers.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Ноя. 7, 2024
Ligand-protected
metal
nanoclusters
provide
an
ideal
platform
for
investigating
photoredox
catalysis.
The
central
challenge
is
balancing
their
stability
and
catalytic
activity.
Here
we
show
a
photochemical
reduction-oxidation
cascade
method
synthesizing
Au
Analytical Chemistry,
Год журнала:
2023,
Номер
95(48), С. 17426 - 17437
Опубликована: Ноя. 16, 2023
UV–vis
spectrophotometry
and
spectrofluorometry
are
indispensable
tools
in
education,
research,
industrial
process
controls
with
widespread
applications
nanoscience
encompassing
diverse
nanomaterials
fields.
Nevertheless,
the
prevailing
spectroscopic
interpretations
analyses
often
exhibit
ambiguity
errors,
particularly
evident
literature.
This
analytical
chemistry
Perspective
focuses
on
fostering
evidence-based
data
interpretation
experimental
studies
of
materials'
absorption,
scattering,
fluorescence
properties.
We
begin
by
outlining
common
issues
observed
analysis.
Subsequently,
we
provide
a
summary
recent
advances
commercial
spectrophotometric
spectrofluorometric
instruments,
emphasizing
their
potential
to
enhance
scientific
rigor
Furthermore,
propose
avenues
for
future
developments
instrumentation
measurement
strategies,
aiming
further
augment
utility
optical
spectroscopy
nano
research
samples
where
complexity
surpasses
existing
tools.
Through
targeted
focus
critical
related
properties
nanomaterials,
this
can
serve
as
valuable
resource
researchers,
educators,
practitioners.
Polyoxometalates,
Год журнала:
2023,
Номер
2(4), С. 9140043 - 9140043
Опубликована: Ноя. 6, 2023
The
ligand
exchange-induced
size/structural
transformation
(LEIST)
reaction
of
metal
nanoclusters
gives
us
an
effective
way
to
understand
the
structural
transition,
broaden
synthesis
methods,
and
enhance
relevant
performance
nanoclusters.
features
unique
bonding
modes
phosphine
ligands
have
been
investigated
explore
"phosphine-LEIST"
reaction,
which
shows
advantages
in
nanoclusters'
modification
property
modulation.
This
review
focuses
on
ligand-induced
transformations
corresponding
catalytic
optical
regulation
An
introspective
outlook
is
also
presented
at
last
concerning
design
functional
for
further
evolution
atomically
precise
