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
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(10), P. 4351 - 4360
Published: Feb. 27, 2023
Using
enantiomerically
pure
bidentate
and
tridentate
N-donor
ligands
(1LR/1LS
2LR/2LS)
to
replace
two
coordinated
H2O
molecules
of
Yb(tta)3(H2O)2,
respectively,
eight-
nine-coordinated
YbIII
enantiomeric
pairs,
namely,
Yb(tta)31LR/Yb(tta)31LS
(Yb-R-1/Yb-S-1)
[Yb(tta)32LR]·CH3CN/[Yb(tta)32LS]·CH3CN
(Yb-R-2/Yb-S-2),
were
isolated,
in
which
Htta
=
2-thenoyltrifluoroacetone,
1LR/1LS
(-)/(+)-4,5-pinene-2,2'-bipyridine,
2LR/2LS
(-)/(+)-2,6-bis(4',5'-pinene-2'-pyridyl)pyridine.
Interestingly,
they
not
only
present
distinct
degrees
chirality
but
also
show
large
differences
near-infrared
(NIR)
photoluminescence
(PL),
circularly
polarized
luminescence
(CPL),
second-harmonic
generation
(SHG).
Eight-coordinated
Yb-R-1
with
an
asymmetric
1LR
ligand
has
a
high
NIR-PL
quantum
yield
(1.26%)
long
decay
lifetime
(20
μs)
at
room
temperature,
being
more
than
times
those
(0.48%,
8
Yb-R-2
C2-symmetric
2LR
ligand.
In
addition,
displays
efficient
CPL
dissymmetry
factor
glum
0.077,
4
×
(0.018).
particular,
presents
strong
SHG
response
(0.8
KDP),
is
(0.1
KDP).
More
remarkably,
the
precursor
Yb(tta)3(H2O)2
exhibits
third-harmonic
(THG)
(41
α-SiO2),
while
introduction
chiral
N-donors
results
switching
THG
SHG.
Our
interesting
findings
provide
new
insights
into
both
functional
regulation
multifunctional
lanthanide
molecular
materials.
Physical Chemistry Chemical Physics,
Journal Year:
2024,
Volume and Issue:
26(21), P. 15776 - 15783
Published: Jan. 1, 2024
Chiral,
enantiopure
Yb(III)
complexes
exhibit
circularly
polarized
luminescence
(CPL)
in
the
near
infrared
(NIR)
wavelength
region.
This
CPL
is
quantified
by
dissymmetry
factor
(
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(33), P. 22913 - 22917
Published: Aug. 7, 2024
The
magneto-optical
response
of
chiral
materials
holds
significant
potential
for
applications
in
physics,
chemistry,
and
biology.
However,
exploration
the
near-infrared
(NIR)
remains
limited.
Herein,
we
report
synthesis
strong
NIR-II
activity
three
pairs
3
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(11), P. 3296 - 3308
Published: Jan. 1, 2024
Four
pairs
of
enantiomers
ferromagnetically
coupled
Dy
2
single-molecule
magnets,
which
show
both
strong
magneto-optical
Faraday
effects
and
third-harmonic
generation,
are
directionally
constructed.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 6, 2025
Correlating
the
molecular
structure
with
electronic
of
lanthanide(III)
solvates
is
a
challenging
task.
Neodymium(III)
in
aqueous
solution
serves
as
an
appealing
and
straightforward
model
to
address
this
issue.
Herein,
experimentally
determined
neodymium(III)
water
compared
ab
initio
calculated
structures
based
on
various
models
its
structure.
This
comparison
enables
determination
most
reliable
The
findings
reveal
that
aqua
ion
best
aligns
corresponds
nine
coordinated
complex,
surrounded
by
17
molecules
second
coordination
sphere.
role
second-sphere
was
investigated
calculating
crystal
field
splitting
five
Kramers
doublets
within
4I9/2
low-energy
multiplet
for
several
numbers
eight,
nine,
ten.
results
demonstrated
shape
donor
orbitals
plays
critical
ion.
Furthermore,
confirmed
orientation
donating
orbitals,
specifically
O-H
bonds
water,
essential
accurately
describing
Finally,
manual
alteration
Nd-O
bond
lengths
revealed
CAS(3,7)CF
calculations
tend
underestimate
strength.
Nanoscale,
Journal Year:
2023,
Volume and Issue:
15(28), P. 12095 - 12104
Published: Jan. 1, 2023
We
explore
the
induction
of
chirality
to
achiral
free
base-
and
metallo-porphyrins
by
silica
nano
helices
as
a
strategy
for
preparation
magneto-chiral
objects.
Angewandte Chemie,
Journal Year:
2023,
Volume and Issue:
135(25)
Published: March 22, 2023
Abstract
In
recent
years,
circularly
polarized
luminescence
(CPL)
has
witnessed
a
renaissance,
due
to
the
increased
popularity
of
CPL
as
spectroscopic
technique
and
greater
accessibility
instrumentation.
New
efficient
emitters
have
been
designed
many
applications,
ranging
from
electronic
devices
microscopy
proposed.
Most
examples
are
within
visible
range,
while
few
cases
near
infrared
(NIR)
active
complexes
available.
NIR‐CPL
compounds
may
applications
in
telecommunication
industry,
bioassays.
following,
we
shall
give
an
overview
developments
allowing
for
measurements
NIR‐CPL,
describe
chiroptical
properties
metal
which
achieve
this
feat.
