Chemistry - A European Journal,
Год журнала:
2023,
Номер
29(62)
Опубликована: Авг. 16, 2023
Abstract
Inkless
and
erasable
printing
(IEP)
based
on
chromic
materials
holds
great
promise
to
alleviate
environmental
sustainable
problems.
Metal–organic
polymers
(MOPs)
are
bright
platforms
for
constructing
IEP
materials.
However,
it
is
still
challenging
design
target
MOPs
with
excellent
specific
functions
rationally
due
the
intricate
component‐structure‐property
relationships.
Herein,
an
effective
strategy
was
proposed
rational
IEP‐MOP
The
stimuli‐responsive
viologen
moiety
introduced
into
construction
of
give
potential
behaviors
two
different
coordination
models
(i.
e.
bilateral
model,
M
1
;
unilateral
coordinated
2
)
same
ligand
were
designed.
Aided
by
theoretical
calculations,
model
recommended
secondarily
as
a
more
suitable
system
Along
this
line,
representative
viologen‐Zn
II
synthesized
successfully.
Experiments
exhibit
that
does
have
quicker
stimuli
response,
stronger
color
contrast
longer
radical
lifetime
compared
.
Significantly,
obtained
1‐IEP
media
brightly
inherits
characteristics
flexibility
paper
at
time,
which
achieves
most
daily
requirements,
well
enough
resolution
durability
be
used
in
identification
smart
device.
Dalton Transactions,
Год журнала:
2024,
Номер
53(20), С. 8803 - 8811
Опубликована: Янв. 1, 2024
Two
Cd(
ii
)-viologen
frameworks
modulated
by
coordination
modes
with
tunable
photo/thermochromic
properties
for
flexible
imaging
films
and
anti-counterfeiting.
Dalton Transactions,
Год журнала:
2019,
Номер
49(1), С. 89 - 94
Опубликована: Ноя. 18, 2019
In
this
work,
a
new
crystalline
polyoxometalate-viologen
hybrid,
(Pbpy)(Me2NH2)3[PW11ZnO40]
(1:
Pbpy
=
1,1'-[1,4-phenylenebis-(methylene)]bis(4,4'-bipyridinium)),
has
been
synthesized.
It
showed
efficient
ultraviolet
light
detection
ability
with
an
obvious
colour
change
from
pale
yellow
to
blue
and
fast
response
intensity
as
low
0.006
mW
cm-2
in
narrow-band
UV
regions.
The
POM-viologen-based
film
of
1
also
readily
prepared
on
quartz
substrates
using
drop
casting
method
could
exhibit
different
levels
changes
under
sunlight
irradiation
at
local
times
sunny
day,
indicating
its
potential
be
used
portable
device
for
solar
detection.
Ultraviolet
is
not
only
reflected
changes,
but
accompanies
the
photoluminescence
phenomenon.
fluorescence
decreased
increase
intensity,
when
irradiated
xenon
lamp
(8
cm-2)
about
5
min,
was
almost
completely
quenched.
compound
achieve
based
probing.
powdered
sample
deposited
paper
simply
by
coating
it
solution
ethanol.
can
inkless
erasable
print
medium,
which
found
remain
clear
11
d
dark
ambient
atmosphere
reusable
erased.
RSC Advances,
Год журнала:
2022,
Номер
12(12), С. 6951 - 6957
Опубликована: Янв. 1, 2022
Three
anionic
metal–organic
frameworks
(MOFs)
{[Zn3(BTEC)2(H2O)(4-BCBPY)]·(H2O)}n
(1–3)
(BTEC4−
=
1,2,4,5-benzenetetracarboxylic
acid
anion,
4-BCBPY2+
1,1′-bis(4-cyanobenzyl)-4,4′-bipyridinium
dication)
were
synthesized
in
the
reaction
of
with
different
metal
salts
such
as
ZnNO3,
ZnCl2,
and
ZnSO4,
under
solvothermal
conditions
presence
chloride.
Single
crystal
X-ray
diffraction
analysis
shows
that
compounds
1,
2
3
have
MOF
structures
based
on
binuclear
building
units,
which
are
connected
by
two
protonated
BTEC4−
ligands
three
zinc
ions,
viologen
cation
is
located
channel
to
achieve
charge
balance.
Compounds
good
photosensitivity,
respond
sunlight,
UV
light
blue
ray,
turn
blue.
The
D–A
distance
π–π
stacking
discolored
samples
(1P,
2P
3P)
changed.
In
addition,
showed
visible
color
changes
ammonia
vapor,
rapidly
changing
from
white
At
same
time,
exhibited
fluorescence
quenching
vapor
Cr2O72−.
It
further
proved
fluorescent
sensors
a
low
detection
limit
(for
Cr2O72−:
10−5
M)
high
sensitivity
for
was
found
photochromic
behavior,
sensing
properties
can
be
tuned
nature
salts.
Chemistry - A European Journal,
Год журнала:
2023,
Номер
29(62)
Опубликована: Авг. 16, 2023
Abstract
Inkless
and
erasable
printing
(IEP)
based
on
chromic
materials
holds
great
promise
to
alleviate
environmental
sustainable
problems.
Metal–organic
polymers
(MOPs)
are
bright
platforms
for
constructing
IEP
materials.
However,
it
is
still
challenging
design
target
MOPs
with
excellent
specific
functions
rationally
due
the
intricate
component‐structure‐property
relationships.
Herein,
an
effective
strategy
was
proposed
rational
IEP‐MOP
The
stimuli‐responsive
viologen
moiety
introduced
into
construction
of
give
potential
behaviors
two
different
coordination
models
(i.
e.
bilateral
model,
M
1
;
unilateral
coordinated
2
)
same
ligand
were
designed.
Aided
by
theoretical
calculations,
model
recommended
secondarily
as
a
more
suitable
system
Along
this
line,
representative
viologen‐Zn
II
synthesized
successfully.
Experiments
exhibit
that
does
have
quicker
stimuli
response,
stronger
color
contrast
longer
radical
lifetime
compared
.
Significantly,
obtained
1‐IEP
media
brightly
inherits
characteristics
flexibility
paper
at
time,
which
achieves
most
daily
requirements,
well
enough
resolution
durability
be
used
in
identification
smart
device.
