Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(11), P. 3309 - 3315
Published: Jan. 1, 2024
An
unprecedented
disk-like
Y
12
cluster
with
unique
2
⊂Y
10
type
structure
was
achieved
successfully,
which
is
the
largest
non-brucite
RE
and
exhibits
obvious
electroluminescence
performance
in
OLED
device.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(13), P. 6050 - 6062
Published: Jan. 1, 2024
The
use
of
pair
interactions
and
specific
site
affinities
provides
63%
the
heterotrimetallic
HHH
-[(L4
3
Zn)LaEu]
8+
helicate
in
solution
where
statistics
predicts
only
25%
this
isomer
under
thermodynamic
control
for
a
stoichiometric
ratio
1
:
1.
Advanced Optical Materials,
Journal Year:
2024,
Volume and Issue:
12(27)
Published: Aug. 5, 2024
Abstract
Magnetic
circularly
polarized
luminescence
(MCPL)
is
a
technique
based
on
the
differential
emission
of
left
and
right
light
induced
by
magnetic
field.
This
counterpart
to
widely
explored
circular
dichroism.
In
this
work,
first
demonstration
MCPL
presented
in
heterometallic
lanthanide(III)
systems
using
two
molecular
cluster
aggregates,
{Eu
1
Tb
19
}
3
17
.
The
results
here
indicate
potential
that
holds
for
obtaining
highly
tuned
magneto‐optical
materials
various
applications,
such
as
anti‐counterfeiting
materials.
Additionally,
findings
suggest
interactions
between
ions
modulate
dissymmetry
factor,
opening
possibility
development
tunable
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 20, 2024
The
rational
engineering
of
molecules
is
a
powerful
chemistry
tool
pivotal
importance
in
the
fields
molecular
magnetism
and
luminescence.
Hence,
systems
that
can
be
modulated
via
composition
control
are
expected
to
present
extra
versatility
regarding
tunability
their
properties.
This
case
with
cluster
aggregates
(MCAs),
high
nuclearity
compounds.
Herein,
we
demonstrate
how
union
both
strategies,
namely,
engineering,
employed
enhance
upconversion
MCAs.
was
achieved
by
doping
Communications Chemistry,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: May 3, 2025
Examples
of
molecular
complexes
acting
as
thermometers
operating
at
room
temperature
in
near
infrared
region
are
scarce,
therefore
this
work
showcases
the
anti-thermal
quenching
effect
on
neodymium(III)
working
biological
windows
within
physiological
range.
A
mononuclear
complex,
[Nd(L)(NO3)3]
(1Nd),
where
L
is
a
macrocyclic
ligand,
was
synthesized
and
used
precursor
to
develop
two
novel
species:
dinuclear,
[(Nd(L)(NO3))2(µ-BDC)](NO3)2·H2O
(2Nd),
linked
by
1,4-benzenedicarboxylate
(BDC),
hexameric,
[(Nd(L))(µ-BTC)(H2O)]6·35H2O
(6Nd),
with
1,3,5-benzenetricarboxylate
(BTC).
Thermometric
properties
were
studied
range
(292-332
K),
utilizing
804
nm
laser
excitation
(first
window)
monitoring
emissions
second
window
(908,
1065,
1340
nm)
associated
4F3/2
→
4I9/2,
4I11/2,
4I13/2
transitions,
respectively.
Among
complexes,
hexamer
6Nd
exhibited
exceptional
performance,
Sr
2.4%K-1
293
K,
when
luminescence
intensity
ratio
(LIR)
Stark
components
4I11/2
emission
used,
positioning
it
high-performance
NdIII-based
thermometer.
All
displayed
behavior,
surpassing
current
molecular-based
near-infrared
region.
Theoretical
calculations
using
complete
active
space
self
consistent
field
(CASSCF)
Boltzmann
population
models
between
Kramers
doublets
level
performed
rationalize
behavior.
Nanoscale,
Journal Year:
2023,
Volume and Issue:
15(35), P. 14409 - 14422
Published: Jan. 1, 2023
Despite
the
great
effort
made
in
recent
years
on
lanthanide-based
ratiometric
luminescent
nanothermometers
able
to
provide
temperature
measurements
water,
their
design
remains
challenging.
We
report
synthesis
and
properties
of
efficient
that
are
based
mesoporous
stellate
nanoparticles
(MSN)
ca.
90
nm
functionalized
with
an
acetylacetonate
(acac)
derivative
inside
pores
loaded
β-diketonate-Tb3+/Eu3+
complexes
work
PBS
or
cells.
Encapsulating
a
[(Tb/Eu)9(acac)16(μ3-OH)8(μ4-O)(μ4-OH)]
complex
(Tb/Eu
ratio
=
19/1
9/1)
led
hybrid
multifunctionalized
exhibiting
Tb3+
Eu3+
characteristic
temperature-dependent
luminescence
high
rate
Tb3+-to-Eu3+
energy
transfer.
According
theoretical
calculations,
modifications
photoluminescence
increase
pairwise
transfer
by
about
10
times
can
be
rationalized
as
change
coordination
number
Ln3+
sites
from
7
8
accompanied
symmetry
evolution
Cs
C4v
slight
shortening
intramolecular
Ln3+-Ln3+
distances
upon
effect
encapsulation.
These
operate
20-70
°C
range
excellent
photothermal
stability,
cyclability
repeatability
(>95%),
displaying
maximum
relative
thermal
sensitivity
1.4%
°C-1
(at
42.7
°C)
water.
Furthermore,
they
cells
8.6%
40
°C),
keeping
mind
adjusting
calibration
for
each
system
is
necessary
ensure
accurate
measurements.