Chiral structures in azobenzene‐containing systems: Construction, regulation, and application
Zixiang He,
No information about this author
Xiaoxiao Cheng,
No information about this author
Zhao Wang
No information about this author
et al.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
2(2)
Published: May 1, 2024
Abstract
Chirality
is
a
fundamental
property
in
nature,
which
essential
for
the
existence
and
survival
of
living
organisms.
Smart
responsive
chiroptical
materials
have
garnered
increasing
attention
due
to
their
unique
structural
characteristics
potential
applications.
Among
these,
azobenzene
(Azo),
as
typical
photoresponsive
chromophore,
plays
crucial
role
constructing
controlling
chiral
structures.
The
cis
‐
trans
isomerization,
liquid
crystallinity,
other
physicochemical
properties
allow
wide
range
tunability
stimuli‐responsive
materials.
Herein,
we
review
research
studies
field
chiral/achiral
Azo
building
blocks
multilevel
generation
well
switching,
summarize
recent
advances
on
applications
structures
from
micro
macro
levels.
Finally,
aim
provide
an
overview
challenges
new
opportunities
development
novel
smart
Language: Английский
Visible‐Light‐Mediated Photocatalyst‐Free Hydroacylation of Azodicarboxylic Acid Derivatives with 4‐Acyl‐1,4‐dihydropyridines
Chinese Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
42(11), P. 1230 - 1236
Published: Feb. 5, 2024
Comprehensive
Summary
A
visible‐light‐enabled,
photocatalyst‐free
hydroacylation
reaction
of
azodicarboxylic
acid
derivatives
was
described.
This
radical
conjugate
addition
(RCA)
protocol
relied
on
the
dual
role
4‐acyl‐1,4‐dihydropyridine
(acyl‐DHP)
reagents
that
besides
being
as
reservoirs,
they
also
enabled
conversion
adducts
to
anion
intermediates
via
reduction.
Under
“catalyst‐oxidant‐additive
free”
conditions,
a
wide
range
structurally
different
acyl
hydrazide
products
were
readily
obtained
in
56%—99%
yields.
The
utility
this
transformation
further
demonstrated
by
scale‐up
synthesis
and
downstream
derivatization.
Language: Английский
Photostimulus-responsive Non-covalent Interactions in Polymers: A Review
Phakamat Limarun,
No information about this author
Kwanchai Buaksuntear,
No information about this author
Siriwan Jansrinak
No information about this author
et al.
Chinese Journal of Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
Language: Английский
Molecular Imprinting Strategy Enables Circularly Polarized Luminescence Enhancement of Recyclable Chiral Polymer Films
Nianwei Wang,
No information about this author
Ran Hong,
No information about this author
Gong Zhang
No information about this author
et al.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 17, 2024
Circularly
polarized
luminescence
(CPL)
plays
a
crucial
role
in
the
fields
of
optical
display
and
information
technology.
The
pursuit
high
dissymmetry
factors
(g
Language: Английский
New Concept on the Generation and Regulation of Circularly Polarized Luminescence
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 12, 2024
Circularly
polarized
luminescence
(CPL)
has
attracted
tremendous
attention
because
of
its
significant
application
prospect
across
multiple
fields
three-dimensional
display,
data
storage,
and
information
encryption.
Chirality
are
two
necessary
prerequisites
for
the
generation
CPL.
However,
controlling
these
factors
simultaneously
in
a
rational
manner
remains
challenge.
Herein,
we
highlight
recent
advances
on
regulation
CPL
through
new
concept,
named
matching
rules,
mainly
including
fluorescence-selective
absorption,
circularly
fluorescence
energy
transfer,
chiral
communication
between
excited
state
ground
state.
An
important
commonality
among
strategies
is
that
they
need
good
overlap
corresponding
spectra
luminescent
part
(fluorescence,
phosphorescence,
or
CPL)
(organic,
inorganic,
organic-inorganic
hybrid
materials),
which
can
be
contactless
separate.
Different
from
most
previous
studies,
no
covalent
noncovalent
interactions
parts
required,
makes
them
more
facile
convenient.
Finally,
summarize
main
advantages
current
challenges.
We
expect
this
concept
to
offer
insightful
novel
understanding
inspiration
regulation.
Language: Английский