ACS Applied Materials & Interfaces,
Год журнала:
2022,
Номер
14(51), С. 57037 - 57046
Опубликована: Дек. 15, 2022
In
this
work,
a
series
of
novel
multistimulus-responsive
lanthanide
coordination
polymers
{[LnL(H2O)4]Cl3·3H2O}n
(Ln
=
Dy,
Tb,
Eu)
constructed
using
dicarboxylic
acid
viologen
derivative
L
(L
N,N'-4,4'-bipyridiniodipropionate)
and
LnCl3·6H2O
were
prepared.
All
materials
showed
positive
responses
to
UV
light,
the
photochromic
phenomena
accompanied
by
significant
photoquenching
photoluminescence
could
be
observed
through
photoelectron
transfer
mechanism.
Strikingly,
Dy
analogue
displayed
photomagnetic
behavior,
as
well
responded
positively
small
molecules
inorganic
ammonia/organic
amines.
Furthermore,
good
photoresponsive
ammonia/amine
vapor-responsive
properties
Dy-based
material
further
fulfilled
in
dual-function
papers
involving
erasable
inkless
printing
visual
amine
detection
applications.
This
work
aims
advance
development
multifunctional
incorporating
derivates
versatile
ions
enriches
research
field.
ACS Catalysis,
Год журнала:
2022,
Номер
12(6), С. 3550 - 3557
Опубликована: Март 4, 2022
Imine-linked
covalent
organic
frameworks
(COFs)
are
popular
candidates
for
photocatalytic
CO2
reduction,
but
high
polarization
of
the
imine
bond
is
less
efficient
π-electron
delocalization
between
linked
building
units,
leading
to
low
intramolecular
electron
transfer
and
poor
efficiency.
Herein,
we
present
a
structural
electronic
engineering
strategy
through
integrating
imine-linked
COF
consisting
Zn–porphyrin
Co–bipyridyl
units
with
cadmium
sulfide
(CdS)
nanowires
form
CdS@COF
core–shell
structure.
The
experimental
theoretical
results
have
validated
that
CdS
serves
as
channel
interfacial
effects,
which
induces
photoelectron
from
subsequent
injection
into
reduction.
as-prepared
generates
4057
μmol
g–1
CO
in
8
h
under
visible-light
irradiation,
considerably
higher
than
those
its
neat
counterparts.
This
work
provides
protocols
tackle
charge
across
polar
linkages
photosensitizers
active
sites
solar-to-chemical
energy
conversion.
Angewandte Chemie International Edition,
Год журнала:
2021,
Номер
61(2)
Опубликована: Ноя. 7, 2021
Photo-controllable
persistent
luminescence
at
the
single
crystal
level
can
be
achieved
by
integration
of
long-lived
room
temperature
phosphorescence
(RTP)
and
photochromism
within
metal-organic
frameworks
(MOFs)
for
first
time.
Moreover,
multiblock
core-shell
heterojunctions
have
been
prepared
utilizing
isostructural
MOFs
through
an
epitaxial
growth
process,
in
which
shell
exhibits
bright
yellow
afterglow
emission
that
gradually
disappears
upon
further
irradiation,
but
core
does
not
show
such
property.
Benefitting
from
combined
photochromic
behavior,
a
multiple
encryption
demo
facilely
designed
based
on
dynamic
manipulating
RTP
via
reversible
photochromism.
This
work
only
develops
new
types
dynamically
photo-controllable
switch,
also
provides
method
to
obtain
MOFs-based
optical
towards
potential
space/time-resolved
information
anti-counterfeiting
applications.
Journal of the American Chemical Society,
Год журнала:
2021,
Номер
143(5), С. 2232 - 2238
Опубликована: Фев. 1, 2021
Charge-separated
states
with
a
lifetime
scale
of
seconds
or
longer
not
only
favor
studies
using
various
steady-state
analysis
techniques
but
are
important
for
light-energy
conversion
and
other
applications.
Through
steric-hindrance-induced
method,
unprecedented
photoinduced
generation
partially
charge
separated
(PCS)
state
days
has
been
detected
in
the
"visual"
mode
during
decay
excited
to
commonly
observed
fully
(FCS)
viologen
analogues.
One
pale
yellow
4,4′-bipyridine-based
metalloviologen
compound,
an
interannular
dihedral
angle
1.84°
4,4′-bipyridine,
directly
decays
purple
FCS
after
photoexcitation.
The
similar
coordination
framework
larger
(33.74°),
changes
first
PCS
then
relaxes
slowly
(in
dark
Ar,
ca.
2
days;
70
°C
1
h)
state.
two-step
coloration
phenomenon
is
compounds
their
analogues
also
rather
rare
photochromic
species.
EPR
Raman
data
reveal
that
separation
generates
univalent
zinc
radicals
received
electron
Zn(I)
distributes
further
4,4′-bipyridine.
Reduction
π-conjugation
direct
indirect
change
band
gap
account
prolongation
relaxation
process
capture
These
findings
help
understand
control
processes
provide
potential
design
strategy
multicolor
photochromism,
high
efficiency,
ACS Catalysis,
Год журнала:
2023,
Номер
13(8), С. 5723 - 5732
Опубликована: Апрель 12, 2023
Integrating
electron
donor
and
acceptor
chromophores
as
ligands
within
one
MOF
for
light
harvesting
photocatalysis
appears
to
be
a
major
synthesis
challenge.
Meanwhile,
high-efficiency
selective
aerobic
oxidative
coupling
of
amines
imines
under
mild
conditions
is
highly
desirable
scientific
industrial
fields.
Herein,
via
facile
one-pot
synthetic
strategy,
an
porphyrin
ligand
5,15-di(p-benzoato)porphyrin
(H2DPBP)
was
successfully
integrated
into
naphthalene
diimide
(electron
acceptor)-based
Zr-MOF
(Zr-NDI)
construct
mixed-ligand
(Zr-NDI-H2DPBP)
benefiting
from
the
two
with
similar
geometry
connectivity.
When
utilized
heterogeneous
photocatalyst
benzylamine
at
room
temperature,
prepared
Zr-NDI-H2DPBP
exhibited
boosted
imine
generation
rate
(136
mmol
g–1
h–1)
far
exceeding
those
other
noble-metal-free
photocatalysts
can
applied
various
derivatives.
Furthermore,
results
experiments
density
functional
theory
calculations,
photocatalytic
performance
attributed
photoinduced
transfer
H2DPBP
NDI
energy
facilitated
by
photosensitized
irradiation,
which
effectively
improve
electron–hole
separation
efficiency
generate
abundant
reactive
active
species
superoxide
radical
(O2•–)
singlet
oxygen
(1O2),
respectively.
This
work
provides
avenue
chromophore-based
light-harvesting
systems
utilizing
MOFs
platforms
boost
solar-energy
conversion.
Inorganic Chemistry,
Год журнала:
2023,
Номер
62(22), С. 8663 - 8669
Опубликована: Май 24, 2023
Photochromic
metal-organic
complexes
(PMOCs)
have
received
huge
attention
of
chemists,
thanks
to
their
diverse
structural
characteristic
and
various
available
photo-modulate
physicochemical
functionalities.
The
organic
ligand
plays
a
crucial
role
in
the
quest
PMOCs
with
specific
photo-responsive
multiple
coordination
modes
polydentate
ligands
also
provide
possibilities
for
forming
isomeric
MOCs,
which
may
open
new
perspective
on
research
PMOCs.
exploration
suitable
PMOC
systems
is
significant
yield
Taking
into
account
extant
based
polypyridines
carboxylate
as
electron
acceptors
(EAs)
donors
(EDs),
covalent
fusion
pyridyl
carboxyl
species
produce
single
functionalized
bearing
ED
EA
moieties
building
novel
In
this
study,
assembly
bipyridinedicarboxylate
(2,2'-bipyridine-4,4'-dicarboxylic
acid,
H2bpdc)
Pb2+
ions
generate
two
[Pb(bpdc)]·H2O
(1
2),
same
chemical
compositions
main
discrepancies
mode
bpdc2-
ligands.
As
expected,
supramolecular
isomers
1
2
exhibited
different
photochromic
performance,
distinct
microscopic
functional
units.
A
schematic
encryption
anti-counterfeiting
device
has
been
studied.
Compared
extensively
studied
supported
by
photoactive
like
pyridinium
naphthalimide-derivatives
derived
from
mixed
electron-accepting
N-ligands
electron-donating
ligands,
our
work
provides
idea
pyridinecarboxylic
acid
Chemical Reviews,
Год журнала:
2024,
Номер
124(9), С. 5930 - 6050
Опубликована: Апрель 30, 2024
Since
the
last
century,
we
have
witnessed
development
of
molecular
magnetism
which
deals
with
magnetic
materials
based
on
species,
i.e.,
organic
radicals
and
metal
complexes.
Among
them,
broadest
attention
was
devoted
to
molecule-based
ferro-/ferrimagnets,
spin
transition
materials,
including
those
exploring
electron
transfer,
nanomagnets,
such
as
single-molecule
magnets
(SMMs),
qubits,
stimuli-responsive
materials.
Their
physical
properties
open
application
horizons
in
sensors,
data
storage,
spintronics,
quantum
computation.
It
found
that
various
optical
phenomena,
thermochromism,
photoswitching
characteristics,
luminescence,
nonlinear
chiroptical
effects,
well
responsivity
external
stimuli,
can
be
implemented
into
Moreover,
fruitful
interactions
these
effects
provide
new
cross-effects
multifunctionality,
enriching
applications
optical,
electronic,
devices.
This
Review
aims
show
scope
phenomena
generated
recent
advances
areas
high-temperature
photomagnetism,
thermometry
utilizing
SMMs,
addressability
magneto-chiral
dichroism,
opto-magneto-electric
multifunctionality.
These
findings
are
discussed
context
types
accessible
for
classes
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 20, 2025
Abstract
Lattice
metamaterials
emerge
as
advanced
architected
materials
with
superior
physical
properties
and
significant
potential
for
lightweight
applications.
Recent
developments
in
additive
manufacturing
(AM)
techniques
facilitate
the
of
lattice
intricate
microarchitectures
promote
their
applications
multi‐physical
scenarios.
Previous
reviews
on
have
largely
focused
a
specific/single
field,
limited
discussion
properties,
interaction
mechanisms,
multifunctional
Accordingly,
this
article
critically
design
principles,
structure‐mechanism‐property
relationships,
enabled
by
AM
techniques.
First,
are
categorized
into
homogeneous
lattices,
inhomogeneous
other
forms,
whose
principles
processes
discussed,
including
benefits
drawbacks
different
fabricating
types
lattices.
Subsequently,
structure–mechanism–property
relationships
mechanisms
range
fields,
mechanical,
acoustic,
electromagnetic/optical,
thermal
disciplines,
summarized
to
reveal
critical
principles.
Moreover,
metamaterials,
such
sound
absorbers,
insulators,
manipulators,
sensors,
actuators,
soft
robots,
management,
invisible
cloaks,
biomedical
implants,
enumerated.
These
provide
effective
guidelines