Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(5), P. 1366 - 1380
Published: Jan. 1, 2024
Multifunctional
optical
materials
can
be
realized
by
combining
stimuli-responsive
photoluminescence
(PL),
e.g.,
thermometry,
with
non-linear
(NLO)
effects,
such
as
second-harmonic
generation
(SHG).
We
report
a
novel
approach
towards
SHG-active
luminescent
thermometers
achieved
constructing
unique
iridium(iii)
complexes,
cis-[IrIII(CN)2(R,R-pinppy)2]-
(R,R-pinppy
=
(R,R)-2-phenyl-4,5-pinenopyridine),
bearing
both
chiral
2-phenylpyridine
derivative
and
cyanido
ligands,
the
latter
enabling
formation
of
series
molecular
materials:
(TBA)[IrIII(CN)2(R,R-pinppy)2]·2MeCN
(1)
(TBA+
tetrabutylammonium)
(nBu-DABCO)2[IrIII(CN)2(R,R-pinppy)2](i)·MeCN
(2)
(nBu-DABCO+
1-(n-butyl)-1,4-diazabicyclo-[2.2.2]octan-1-ium)
hybrid
salts,
(TBA)2{[LaIII(NO3)3(H2O)0.5]2[IrIII(CN)2(R,R-pinppy)2]2}
(3)
square
molecules,
{[LaIII(NO3)2(dmf)3][IrIII(CN)2(R,R-pinppy)2]}·MeCN
(4)
coordination
chains.
Thanks
to
pinene
group,
1-4
crystallize
in
non-centrosymmetric
space
groups
leading
SHG
activity,
while
N,C-coordination
ppy-type
ligands
Ir(iii)
centers
generates
visible
charge-transfer
(CT)
photoluminescence.
The
PL
characteristics
are
distinctly
temperature-dependent
which
was
utilized
achieving
ratiometric
thermometry
below
220
K.
phenomena
were
rationalized
DFT/TD-DFT
calculations
indicating
an
MLCT-type
emission
obtained
complexes
rich
vibronic
structure
providing
few
bands
that
variously
depend
on
temperature
due
role
thermally
activated
vibrations.
As
these
crucial
vibrational
modes
crystal
lattice,
performance
differs
within
being
most
efficient
4
is
far
best
also
for
4.
This
proves
pinene-functionalized
cyclometalated
dicyanidoiridates(iii)
great
prerequisites
tunable
PL-NLO
conjunction
effective
multifunctionality
ensured
insertion
anions
into
bimetallic
frameworks.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(9), P. 5930 - 6050
Published: April 30, 2024
Since
the
last
century,
we
have
witnessed
development
of
molecular
magnetism
which
deals
with
magnetic
materials
based
on
species,
i.e.,
organic
radicals
and
metal
complexes.
Among
them,
broadest
attention
was
devoted
to
molecule-based
ferro-/ferrimagnets,
spin
transition
materials,
including
those
exploring
electron
transfer,
nanomagnets,
such
as
single-molecule
magnets
(SMMs),
qubits,
stimuli-responsive
materials.
Their
physical
properties
open
application
horizons
in
sensors,
data
storage,
spintronics,
quantum
computation.
It
found
that
various
optical
phenomena,
thermochromism,
photoswitching
characteristics,
luminescence,
nonlinear
chiroptical
effects,
well
responsivity
external
stimuli,
can
be
implemented
into
Moreover,
fruitful
interactions
these
effects
provide
new
cross-effects
multifunctionality,
enriching
applications
optical,
electronic,
devices.
This
Review
aims
show
scope
phenomena
generated
recent
advances
areas
high-temperature
photomagnetism,
thermometry
utilizing
SMMs,
addressability
magneto-chiral
dichroism,
opto-magneto-electric
multifunctionality.
These
findings
are
discussed
context
types
accessible
for
classes
European Journal of Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
26(35)
Published: July 7, 2023
Abstract
The
number
of
scientific
articles
that
need
to
be
considered
cover
a
research
topic
is
ever‐increasing
and
quite
difficult
for
newcomer
assimilate.
This
particularly
true
in
dynamic
discipline
like
Molecular
Magnetism.
In
order
help
young
researchers
this
field,
article
proposes
“review
reviews”
also
known
as
an
“umbrella
review”
on
lanthanide‐based
single‐molecule
magnets
(
4
f
‐SMM).
As
preamble,
various
bibliographic
search
techniques
AI‐based
tools
search,
indexing,
summarization
are
proposed
commented.
Then,
the
main
milestones
‐SMM
identified.
core
paper,
books,
book
articles,
reviews
dealing
with
contextualized
classified
by
subtopics.
therefore
gateway
field.
By
using
chloranilate
anions
to
react
with
3d
complexes
([M(L)(H2O)2],
H2L
=
1,3-propanediylbis(2-iminomethylene-6-methoxy-phenol))
and
4f
ions,
a
series
of
phenoxo-
chloranilate-bridged
zigzag
M2Ln2
clusters
(M
Ni,
Ln
Gd,
Tb,
Dy,
Ho,
Eu
for
1–5,
respectively;
M
Zn,
6–10,
respectively)
have
been
obtained
structurally
characterized.
They
are
rare
3d–4f
heterometallic
complexes.
All
the
Tb
derivatives
exhibit
characteristic
emission
peaks
corresponding
LnIII
ion.
Magnetic
studies
reveal
that
two
Dy
display
field-induced
single-molecule
magnet
properties
energy
barriers
7.44
K
3
50.64
8.
Chemical Science,
Journal Year:
2023,
Volume and Issue:
15(6), P. 2141 - 2157
Published: Dec. 21, 2023
Nd-luminescence
in
NdM
2
N@C
80
(M
=
Sc,
Lu,
Y)
reveals
the
relationship
between
strain,
ligand-field
splitting,
nephelauxetic
effect,
and
magnetic
axiality.
Chemistry - A European Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Abstract
A
1D
coordination
compound
made
of
a
photochromic
dithienylethene
linker
and
[Dy(Tp
2−py
)F]
+
units
(with
Tp
=tris(3‐(2‐pyridyl)pyrazolyl)hydroborate)
having
tetrakis[3,5‐bis(trifluoromethyl)phenyl]borate
counterions
is
reported.
Full
photoconversion
from
the
closed
isomer
to
open
within
single
crystals
allow
for
monitoring
transformation
by
photocrystallography.
Magnetic
slow
relaxation
as
well
magnetic
hysteresis
are
observed
can
be
both
modulated
upon
light
irradiation.
Comparison
with
previously
published
structures
similar
components
highlights
role
supramolecular
organization,
dipolar
couplings
these
compounds,
in
driving
nature
photomodulation.
