Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
64(1), P. 646 - 661
Published: Dec. 26, 2024
This
paper
provides
extensive
studies
of
[IrCl(Ph-py)(morph-C6H4-terpy-κ3N)]PF6
(1A),
[Ir(Ph-py)2(morph-C6H4-terpy-κ2N)]PF6
(2A),
[IrCl(Ph-py)(Ph-terpy-κ3N)]PF6
(1B),
and
[Ir(Ph-py)2(Ph-terpy-κ2N)]PF6
(2B)
designed
to
demonstrate
the
possibility
controlling
photophysical
properties
mono-
bis-cyclometalated
complexes
[IrCl(Ph-py)(R-C6H4-terpy-κ3N)]PF6
[Ir(Ph-py)2(R-C6H4-terpy-κ2N)]PF6
through
a
remote
electron-donating
substituent
introduced
into
4′-position
2,2′:6′,2″-terpyridine
(terpy)
via
phenyl
linker.
The
attachment
morpholinyl
(morph)
group
was
evidenced
induce
dramatic
changes
in
emission
characteristics
monocyclometalated
Ir(III)
systems
with
meridionally
coordinated
R-C6H4-terpy
ligand
(κ3N).
In
solution,
obtained
complex
found
be
rare
example
dual-emissive
systems.
Within
series
bearing
bound
central
ion
bidentate
coordination
mode,
appended
induced
minor
effect
on
maximum,
but
it
an
effective
tool
for
extending
excited-state
lifetime,
further
prolonging
increase
solvent
polarity.
results
this
work
are
high
significance
better
understanding
push–pull
dual-emission
phenomena
Ir-based
luminophores,
as
well
developing
chromophores
prolonged
lifetimes.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(11), P. 7811 - 7821
Published: March 7, 2024
Spin-crossover
(SCO)
coordination
cages
are
at
the
forefront
of
research
for
their
potential
in
crafting
next-generation
molecular
devices.
However,
due
to
scarcity
SCO
hosts
and
own
limited
cavities,
interplay
between
host
multiple
guests
binding
has
remained
elusive.
In
this
contribution,
we
present
a
family
pseudo-octahedral
(M6L4,
M
=
ZnII,
CoII,
FeII,
NiII)
assembled
from
tritopic
tridentate
ligand
L
with
metal
ions.
The
utilization
FeII
ion
leads
successful
creation
Fe6L4-type
cage.
Host–guest
studies
these
M6L4
reveal
capacity
encapsulate
four
adamantine-based
guests.
Notably,
spin
transition
temperature
T1/2
Fe6L4
is
dependent
on
encapsulated.
inclusion
adamantine
yields
an
unprecedented
shift
54
K,
record
guest-mediated
date.
This
drastic
ascribed
synergistic
effect
coupled
optimal
fit
within
host.
Through
straightforward
thermodynamic
cycle,
affinities
high-spin
(HS)
low-spin
(LS)
states
separated
apparent
constant.
result
indicates
that
LS
state
stronger
affinity
than
HS
state.
Exploring
thermodynamics
host–guest
complexes
allows
us
examine
cavity.
study
reveals
can
be
manipulated
by
encapsulation
guests,
cage
ideal
candidate
determining
guest
fit.
Organic Chemistry Frontiers,
Journal Year:
2023,
Volume and Issue:
10(24), P. 6225 - 6239
Published: Jan. 1, 2023
This
review
focuses
on
the
eight-shaped
double
ring
structure
of
tetraphenylethylene,
summarizes
research
progress
structures,
ionic
molecular
structures
and
metal
looks
forward
to
its
future
development
direction.
Small,
Journal Year:
2024,
Volume and Issue:
20(25)
Published: Jan. 14, 2024
Abstract
Smart
luminescent
materials
that
have
the
ability
to
reversibly
adapt
external
environmental
stimuli
and
possess
a
wide
range
of
responses
are
continually
emerging,
which
place
higher
demands
on
means
regulation
response
sites.
Here,
europium
ions
(Eu
3+
)‐directed
supramolecular
metallogels
constructed
by
orthogonal
self‐assembly
Eu
based
coordination
interactions
hydrogen
bonding.
A
new
organic
ligand
(
L
)
is
synthesized,
consisting
crown
ethers
two
flexible
amide
bonds‐linked
1,10‐phenanthroline
moieties
coordinate
with
.
Synergistic
intermolecular
bonding
in
‐
enable
self‐assemble
into
shape‐persistent
3D
MeOH
solution.
The
key
success
utilization
ethers,
playing
dual
roles
acting
both
as
building
blocks
build
C
2
‐symmetrical
structure,
ideal
monomer
for
increasing
energy
transfer
from
’s
excited
state,
thus
maintaining
excellent
luminescence
metallogels.
Interestingly,
such
assemblies
show
K
+
,
pH,
F
−
mechano‐induced
reversible
gel‐sol
transitions
tunable
properties.
Above
findings
useful
studies
molecular
switches,
dynamic
assemblies,
smart
materials.
