Noncovalent Interactions in Coordination Chemistry of Cyclic Trinuclear Copper(I) and Silver(I) Pyrazolates
Crystals,
Год журнала:
2025,
Номер
15(2), С. 115 - 115
Опубликована: Янв. 23, 2025
Group
11
metals
form
with
pyrazolate
ligand
complexes
a
general
formula
of
[MPz]n.
The
value
“n”
varies
depending
on
the
type
substituent
in
and
metal
atom.
Copper(I)
silver(I)
ions
mainly
cyclic
di-,
tri-,
tetra-nuclear
or
polymeric
structures.
Cyclic
trinuclear
d10
pyrazolates
[MPzm]3
(M
=
Cu(I)
Ag(I);
Pz
substituted
ligand)
are
particular
interest
because
their
planar
structure
allows
them
to
supramolecular
aggregates
via
noncovalent
metal–metal,
metal–π,
metal–electron
donor
interactions.
Designing
based
these
interactions
has
been
focus
research
for
last
two
decades.
ability
copper(I)
coordination
structures
determines
properties
potential
applications
catalysis,
gas
sensing,
molecular
recognition,
photoluminescence.
In
this
review,
we
discuss
between
various
types
ligands.
Язык: Английский
Enabling Thermally Stimulated Delayed Phosphorescence in Cu(I) Cyclic Trinuclear Complexes with Near-Unity Quantum Yield
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 17, 2025
Thermally
stimulated
delayed
phosphorescence
(TSDP)
emission
has
recently
been
discovered
in
several
Au(I)/Au(III)
complexes,
featuring
thermally
enhanced
intensities
and
notable
quantum
yields
(QYs).
Developing
earth-abundant
metal-based
TSDP
emitters
with
further
increased
QYs
holds
significant
promise
for
practical
applications.
Herein,
we
present
a
halogen
bonding
approach
to
achieve
bromo-substituted
Cu(I)
cyclic
trinuclear
complexes
(CTCs).
Photophysical
analysis
theoretical
calculations
reveal
the
crucial
role
of
suppressing
excited-state
distortions
reducing
energy
differences
between
first
second
triplet
excited
states
(T1
T2).
This
enables
efficient
spin-allowed
reverse
internal
conversion,
leading
behavior.
Additionally,
low
reorganization
rigid
halogen-bonded
network
CTCs
result
significantly
suppressed
nonradiative
decay
high
QYs,
one
approaching
near-unity.
work
provides
an
innovative
extend
behavior
from
QYs.
Язык: Английский
A Series of Luminescent [(Xantphos)CuILN] Complexes and Their Luminescence Sensing Properties for VOCs Detection and TD‐DFT Calculation
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(5)
Опубликована: Апрель 9, 2025
ABSTRACT
The
design
and
research
of
luminescent
volatile
organic
compounds
(VOCs)
fluorescent
sensing/stimuli–response
materials
are
great
significance
challenge.
We
report
herein
a
series
new
[(Xantphos)CuIL
N
]
type
complexes
with
tetrahedral
CuIP
2
coordination,
showing
luminescence
from
blue
to
red
sensing
for
VOCs
detection
(Xantphos
is
4,5‐bis
(diphenylphosphino)‐9,9‐dimethylxanthene,
L
N‐containing
ligand).
Firstly,
six
1
–
6
were
designed
ball‐milling
synthesized
by
the
ligand‐addition
reaction
raw
material
[(Xantphos)CuI]
different
ligands
2‐aminopyridine
(
),
3‐cyanopyridine
4‐cyanopyridine
3
2‐(3′‐pyridyl)‐benzoxazole
4
3‐I‐4‐aminopyridine
5
imidazole
).
Time‐dependent
density
functional
theory
(TD‐DFT)
calculations
assign
low‐energy
band
(absorption
edge)
in
UV–Vis
absorption
as
mixed
(XL
+
ML)CT
transition,
corresponding
excited
state
also
thought
be
source
photoluminescence
(PL).
Material
has
highest
PL
efficiency
(~44%),
which
may
benefit
its
greatest
structural
rigidity.
exhibiting
worst
should
related
iodine
atom
ligand
(I
dominate
unoccupied
orbitals
S
T
states).
Based
on
very
weak
PL,
thin‐film
sensor
)
achieve
significantly
enhanced
(lighting‐up
mode)
pyridine
4‐methylpyridine
vapor.
achieves
lowest
limit
(LOD
=
2.51
ppm)
fastest
response
speed
(T
50
30
s)
pyridine.
In
addition,
show
interesting
quenching
vapochromic
variety
vapors.
Язык: Английский
Advanced anticounterfeiting polymer inks for high-level encryption and authentication technologies
Progress in Materials Science,
Год журнала:
2025,
Номер
unknown, С. 101487 - 101487
Опубликована: Апрель 1, 2025
Язык: Английский
The crystal structure of catena-poly(μ2-1,4-bis-(1H-imidazol-1-yl)benzene-copper(I)) dichloridocopper(I), {[CuC12H10N4]+[CuCl2]−} n
Zeitschrift für Kristallographie - New Crystal Structures,
Год журнала:
2024,
Номер
239(4), С. 751 - 754
Опубликована: Июнь 18, 2024
Abstract
[CuC
12
H
10
N
4
]⋅[CuCl
2
],
triclinic,
P
1̄
(no.
2),
a
=
4.2957(9)
Å,
b
8.718(2)
c
9.878(3)
α
67.58(2)°,
β
78.97(2)°,
γ
80.043(19)°,
V
333.63(15)
Å
3
,
Z
1,
R
gt
(
F
)
0.0360,
wR
ref
0.0998,
T
296
K.
Язык: Английский
High‐Temperature Solid‐State Post‐synthetic Modification of Highly Luminescent Cu(I) Metallacycles toward New Luminescent Thermic Tracers
Angewandte Chemie,
Год журнала:
2024,
Номер
137(1)
Опубликована: Сен. 19, 2024
Abstract
A
new
luminescent
Cu(I)
tetrametallic
metallacycle
B
is
reported
that
features
very
rare
semi‐bridging
aqua
ligands.
When
heated
markedly
above
room
temperature,
this
compound
undergoes
a
post‐synthetic
transformation
in
the
solid‐state,
affording
C
.
Thermogravimetric
analysis,
IR
spectroscopy
and
single‐crystal
X‐ray
diffraction
reveal
alteration
preserves
gross
macrocycle
structure,
but
caused
by
release
of
coordinated
water
molecules
with
concomitant
formation
cuprophilic
interactions.
This
transition
induces
shift
from
eye‐perceived
green
(
)
to
blue
room‐temperature
luminescence
for
these
molecular
solids.
Photophysical
measurements
time‐dependent
density‐functional
theory
calculations
have
been
conducted
identify
origins
emission
properties
lying
structurally
related
assemblies,
suggest
thermally
activated
delayed
fluorescence
dominates
radiative
relaxation
pathways.
study
highlights
innovative
feature
derivatives,
offering
access
stimuli‐sensitive
materials
can
witness,
posteriori,
exceeding
critical
temperatures
their
environment.
Язык: Английский
High‐Temperature Solid‐State Post‐synthetic Modification of Highly Luminescent Cu(I) Metallacycles toward New Luminescent Thermic Tracers
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
64(1)
Опубликована: Сен. 19, 2024
A
new
luminescent
Cu(I)
tetrametallic
metallacycle
B
is
reported
that
features
very
rare
semi-bridging
aqua
ligands.
When
heated
markedly
above
room
temperature,
this
compound
undergoes
a
post-synthetic
transformation
in
the
solid-state,
affording
C.
Thermogravimetric
analysis,
IR
spectroscopy
and
single-crystal
X-ray
diffraction
reveal
alteration
preserves
gross
macrocycle
structure,
but
caused
by
release
of
coordinated
water
molecules
with
concomitant
formation
cuprophilic
interactions.
This
transition
induces
shift
from
eye-perceived
green
(B)
to
blue
(C)
room-temperature
luminescence
for
these
molecular
solids.
Photophysical
measurements
time-dependent
density-functional
theory
calculations
have
been
conducted
identify
origins
emission
properties
lying
structurally
related
assemblies,
suggest
thermally
activated
delayed
fluorescence
dominates
radiative
relaxation
pathways.
study
highlights
innovative
feature
derivatives,
offering
access
stimuli-sensitive
materials
can
witness,
posteriori,
exceeding
critical
temperatures
their
environment.
Язык: Английский