Abstract
Presponsive
smart
organic
crystalline
materials
(SOCMs)
have
emerged
as
an
attractive
research
topic
because
of
their
many
advantages,
such
well-defined
structures,
high
structural
order,
and
the
resulting
fast
response
speeds,
well
energy
conversion
efficiency
remarkable
dynamic
optical/electronic
changes
or
mechanical
responses.
In
this
review,
we
discuss
recent
developments
in
SOCMs
based
on
topochemistry
beyond
coordination
compounds,
which
include
[2
+
2]
[4
4]
photocycloaddition
anthracene
olefin
derivatives
1,
4-addition-polymerization
diacetylenes.
The
detailed
design
principles
mechanisms
associated
with
behavior,
photoresponsive
physical
chemical
properties
(i.e.,
photochromism,
photo
fluorochromism,
photodeformation),
structure–property
relationships
are
discussed,
along
advanced
applications
exciting
fields
intelligent
microrobots,
encryption,
sensors,
photoactuators,
data
storage,
displays.
Finally,
summarize
current
major
challenges
future
opportunities
field.
We
expect
that
review
will
inspire
more
innovative
into
development
crystal
fast,
accurate,
reversible
responses,
promote
further
devices.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(36), С. 25028 - 25034
Опубликована: Авг. 30, 2024
Controlling
the
packing
of
olefinic
molecules
in
crystals
is
essential
for
triggering
solid-state
[2
+
2]
photocycloaddition
reactions
and
synthesis
photocontrolled
smart
materials.
Herein,
we
report
stepwise
photodimerization-triggered
photopolymerization
two
triene
coordination
polymers
(CPs),
{[Zn(2-BBA)2(tpeb)]·0.5CH3CN}n
(1,
2-HBBA
=
2-bromobenzoic
acid,
tpeb
1,3,5-tri-4-pyridyl-1,2-ethenylbenzene)
{[Zn(3-BBA)2(tpeb)]·CH3CN)}n
(2,
3-HBBA
3-bromobenzoic
acid).
Upon
irradiation
with
420
nm
light,
each
pair
closely
packed
parallel
bonds
1
undergoes
a
cycloaddition
reaction,
which
connects
adjacent
Z-shaped
chains
into
ladder-like
chain
[Zn(2-BBA)2(bpbdpvpcb)0.5]n
(1a,
bpbdpvpcb
1,3-bis(4-pyridyl)-2,4-bis(3,5-di(2-(4-pyridyl)vinyl)phenyl]cyclobutene)
through
single-crystal
to
(SCSC)
transformation.
After
photodimerization
from
1a
has
occurred,
that
were
initially
distant
are
brought
close
enough
proximity
meet
requirements
subsequent
reaction.
further
light
irradiation,
neighboring
ligands
experience
SCSC
based
on
transform
poly-3b,4,5,5a,8b,9,10a-octahydro-4,5,9,10-tetrapyridyl-2,7-di(2-(4-pyridyl)vinyl)dicyclobuta[e,l]-pyren
(poly-otpdpvdcbp).
2
showed
similar
structural
changes
under
UV
illumination.
Under
exposure,
single
different
morphologies
exhibit
bending,
cracking,
jumping
photomechanical
motions.
The
composite
film
(1-PVA)
engineered
by
dispersing
crystalline
particles
poly(vinyl
alcohol)
(PVA)
displays
interesting
light-wavelength-dependent
motions
can
perform
photodriven
swimming
liquid
surface.
This
work
provides
useful
promising
approach
enable
those
photoinactive
olefin
pairs
embedded
CPs
opens
new
route
synthesize
organic
using
CP
platforms.
Molecular
materials
possessing
switchable
magneto-optical
properties
are
of
great
interest
due
to
their
potential
applications
in
spintronics
and
molecular
devices.
However,
switching
photoluminescence
(PL)
single-molecule
magnet
(SMM)
behavior
via
light-induced
structural
changes
still
constitutes
a
formidable
challenge.
Here,
series
cubane
structures
were
synthesized
self-assembly
9-anthracene
carboxylic
acid
(HAC)
rare-earth
ions.
All
complexes
exhibited
obvious
photochromic
phenomena
complete
PL
quenching
upon
Xe
lamp
irradiation,
which
realized
the
synergistic
effect
photogenerated
radicals
[4
+
4]
photocycloaddition
AC
components.
The
quenched
showed
largest
fluorescence
intensity
change
(99.72%)
electron-transfer
materials.
A
reversible
decoloration
process
was
mechanical
grinding,
is
unexpectedly
Importantly,
an
SMM
Dy
analog
observed
after
room-temperature
irradiation
ligands
stable
changed
electrostatic
ligand
field
magnetic
coupling.
Moreover,
based
on
remarkably
photoluminescent
these
compounds,
2
demos
applied
support
application
information
anti-counterfeiting
inkless
printing.
This
work,
for
first
time
utilizing
simultaneous
modulation
one
system,
realizes
behavior,
providing
dynamical
switch
construction
multifunctional
polymorphic
with
optical
response
storage
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
147(9), С. 7983 - 7992
Опубликована: Фев. 24, 2025
A
solid
state
[2
+
2]
photodimerization
reaction
of
─C═C─
bonds
in
solids
has
been
designed
by
controlling
the
molecular
arrangement
using
supramolecular
chemistry.
Stilbene
derivative
(C14SDA)
with
alkyl
amide
chains
(─CONHC14H29)
forms
intermolecular
hydrogen-bonding
and
exhibits
reversible
successive
phase
transitions
(S1
→
S2
S3
L)
corresponding
to
dynamics
chains.
In
high-temperature
S3,
partially
melt,
resulting
a
one-dimensional
(1D)
dynamic
hydrogen
bond
ferroelectric
behavior
hysteresis
electric
field-polarization
curve
due
polarization
reversal
dipole
moment
an
external
field.
The
S1
C14SDA
did
not
exhibit
reaction,
while
phases
exhibited
form
products
cyclobutane
rings.
phase,
trans-cis
isomerization
stilbene
was
observed
simultaneously
formation
product.
When
attempted
field
applied
thermal
fluctuations
were
suppressed
field,
increasing
distance
between
double
reducing
photoreaction
yield.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 17, 2025
Abstract
Preparing
multi‐color
and
multi‐stimuli‐responsive
circularly
polarized
luminescence
(CPL)
materials
understanding
the
evolution
of
chirality
through
visualized
mode
is
still
a
challenge.
Here,
an
encapsulation
engineering
approach
chiral
metal‐organic
frameworks
(MOFs)
proposed
to
confine
guest
emitters
realize
CPL.
Based
on
triplet‐triplet
energy
transfer
(TTET),
white
CPL
near‐infrared
room
temperature
phosphorescence
(NIR‐CPRTP)
can
be
obtained
by
introducing
pyrene
derivatives.
With
introduction
containing
vinylpyrene
group,
light‐
thermal‐responsive
with
signal
inversion
realized
reversible
[2+2]
cycloaddition
reaction
between
ligand
triggered
visible
light/ultraviolet
light
or
heating.
Furthermore,
excitation‐dependent
successfully
achieved
incorporation
excited
state
intramolecular
proton
(ESIPT)
molecules
into
nanopores.
Importantly,
magnification
greatly
enhanced
spatial
confinement,
accurate
host‐guest
single
crystal
structures
FLT@DCF‐12
FLT@LCF‐12
provide
understand
mechanism
transfer,
amplification
responsiveness.
White
LED
multiple
information
display
encryption
are
further
demonstrated.
This
breakthrough
provides
new
perspective
guest‐encapsulated
MOFs
contributes
construction
stimuli‐responsive
CPL‐active
materials.
Chinese Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 25, 2025
Comprehensive
Summary
UiO‐66,
a
prototypical
and
stable
zirconium‐based
metal‐organic
framework
(MOF),
consists
of
zirconium‐oxide
clusters
(Zr
6
O
4
(OH)
)
benzene‐1,4‐dicarboxylate
(BDC)
organic
linkers.
It
exhibits
abundant
active
sites,
high
specific
surface
area,
tunable
pore
structure,
exceptional
chemical
thermal
stability,
making
it
highly
advantageous
for
various
practical
applications.
The
integration
functional
components
within
UiO‐66
has
been
shown
to
optimize
its
electronic
properties
coordination
environment,
thereby
enhancing
multifunctionality
catalytic
performance.
This
review
highlights
the
analysis
structural
characteristics
explores
modification
strategies
such
as
introduction
linkers,
selection
metal
nodes,
defect
engineering,
doping
with
external
components,
discusses
applications
in
environmental
remediation
energy‐related
fields.
Key
Scientists
Constructing
effective
light-driven
crystal
molecular
machines
and
exploring
their
mechanisms
of
movement
are
vital
for
the
development
machines.
These
explorations
afford
an
Mn2+
metal-organic
framework
(MOF)crystal,
marking
first
instance
a
viologen-containing
crystalline
MOF
capable
exhibiting
reversible
rotational
motion.
Structural
analysis
indicates
that
rotation
bipyridine
units
initiates
with
transformation
in
coordination
configuration
manganese
ion,
which
subsequently
alters
dihedral
angle
from
-6.7°
to
-46.8°.
This
is
facilitated
through
single
bond
involves
transition
state
approaching
0°
during
radical
phase
viologen.
result
not
only
elucidates
mechanism
by
photo-induced
electron
transfer
propels
controlled
biaryl
groups
within
MOFs
but
also
highlights
great
potential
as
