Preparation of seven-coordinated hypervalent tin(iv)-fused azobenzene and applications for stimuli-responsive π-conjugated polymer films
Dalton Transactions,
Год журнала:
2024,
Номер
53(28), С. 11858 - 11866
Опубликована: Янв. 1, 2024
Seven-coordinated
hypervalent
tin(
iv
)
compounds
with
large
binding
constants
were
prepared
and
applied
for
vapochromic
thermochromic
π-conjugated
polymer
films.
Язык: Английский
Development and Scale-Up of a New Sulfone-Based Bismacycle as a Universal Precursor for Bi(V)-Mediated Electrophilic Arylation
Organic Process Research & Development,
Год журнала:
2024,
Номер
28(2), С. 632 - 639
Опубликована: Фев. 7, 2024
The
scope
and
practical
utility
of
bismuth(V)-mediated
electrophilic
arylation
have
been
greatly
improved
by
the
recent
development
user-friendly
protocols
based
on
modular
bismacycle
reagents.
Here,
we
report
scalable
synthesis
a
new
bench-stable
bromide
demonstrate
that
it
can
be
used
as
"universal
precursor"
in
arylation.
Relative
to
established
syntheses
related
bismacycles,
protocol
benefits
from
step-
vessel-economy,
reduced
production
time,
complete
elimination
cryogenic
temperatures
undesirable
solvents
(Et
Язык: Английский
Utilization of Hypervalent Bonds as a Novel Strategy for Manipulating Energy Levels of π‐Conjugated Systems
European Journal of Organic Chemistry,
Год журнала:
2024,
Номер
27(45)
Опубликована: Авг. 20, 2024
Abstract
The
unique
optical
properties
created
by
the
combination
of
azobenzene‐based
π‐conjugated
systems
and
hypervalent
bonds
are
summarized.
bond,
a
polarized
three‐center
four‐electron
(3c−4e)
simultaneously
provides
electron‐donating
‐withdrawing
effects
to
directly
attached
system.
resulting
compounds
have
dramatically
narrow
energy
gap
showing
near‐infrared
(NIR)
emission
despite
limited
size
systems.
In
addition,
also
exhibit
stimuli‐responsive
chromism
through
reversible
coordination‐number
shift
central
main‐group
elements
in
both
crystals
polymer
films.
We
explain
that
nature
depends
on
element
type,
which
is
particularly
effective
bringing
out
heavy
elements.
this
review,
we
describe
use
novel
strategy
not
only
for
manipulating
levels
system
but
developing
variety
functional
materials
based
newly
rising
from
element.
Язык: Английский
Geometrically Constrained Bismuth Compounds
Structure and bonding,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
NCN-pincer organopnictogen(iii) bis(aryloxides)
New Journal of Chemistry,
Год журнала:
2024,
Номер
48(12), С. 5523 - 5529
Опубликована: Янв. 1, 2024
New
hypercoordinated
organopnictogen(
iii
)
bis(aryloxides),
ArPn(SC
6
H
3
R
2
-2,6)
(Pn
=
Sb,
Bi;
Ar
NCN-pincer
ligand;
i
Pr,
OMe),
have
been
prepared
and
their
solution
solid
state
structures
investigated.
Язык: Английский
Quadrupolar dinuclear hypervalent tin(iv) compounds with near-infrared emission consisting of Schiff bases based on π-conjugated scaffolds
Chemical Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Since
π-conjugated
molecules
are
commonly
used
as
a
scaffold
for
constructing
optoelectronic
and
functional
materials,
much
effort
has
been
devoted
to
exploring
novel
molecular
scaffolds
obtaining
superior
properties.
This
study
focuses
on
dinuclear
hypervalent
tin(iv)
compounds
prepared
by
the
ladderization
of
Schiff
bases
using
tin
units.
The
optical
measurements
found
that
introducing
atoms
can
reinforce
D-π-A
system.
We
synthesized
two
types
simple
condensation
reactions
observed
near-infrared
(NIR)
emission.
Also,
depending
direction
imine
bonds,
these
had
different
quadrupolar
orientations
with
D-π-A-π-D
A-π-D-π-A
systems
followed
negative
solvatochromism,
which
is
unique
behavior
quadrupolar-derived
absorption.
Furthermore,
polymers
involving
showed
NIR
emission
in
wavelength
range
over
800
nm
owing
distinct
expansion
π-conjugation.
Our
findings
could
be
useful
not
only
electronic
structures
narrow
energy
gaps
but
also
designing
states
environmental
responsiveness.
Язык: Английский