Applications of Luminescent Cyclometalated Metal Complexes as Sensors and Switches
Synlett,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 19, 2025
Abstract
Cyclometalated
complexes,
including
those
with
pincer
ligands
and
other
chelating
frameworks,
such
as
porphyrin
rings
polyenes,
have
garnered
significant
attention
due
to
their
diverse
applications
in
ion
analyte
detection
across
synthetic
chemistry,
environmental
monitoring,
medicine,
electronics.
These
complexes
exhibit
fascinating
chromic
behaviors,
mechanochromism,
chemochromism,
vapochromism,
which
are
particularly
useful
sensing
applications.
Of
particular
interest
photophysical
properties,
especially
involving
lanthanides,
offer
unique
luminescent
optical
characteristics.
Metals
nickel
(Ni),
palladium
(Pd),
ruthenium
(Ru),
gold
(Au),
rhodium
(Rh)
been
extensively
studied
order
understand
photochemical
activity
explore
potential
light-emitting
devices,
photo-induced
electron
transfer,
technologies.
Their
vapochromic
mechanochromic
properties
make
them
highly
attractive
for
sensing,
while
photoluminescent
capabilities
enhance
utility
optoelectronic
devices
practical
This
review
provides
a
comprehensive
overview
of
applications,
gas,
cation,
anion
sensing.
The
discussion
also
highlights
the
need
incorporate
specific
examples
that
demonstrate
suitability
these
targeted
tasks,
further
emphasizing
promise
advancing
sensor
device
1
Introduction
2
Strategies
3
Applications
4
Other
Miscellaneous
Examples
5
Drawbacks
Limitations
6
Conclusion
Perspectives
7
List
Abbreviations
Definitions
Язык: Английский
Nickel (II) Macrocyclic Complexes: Template Synthesis, Spectroscopic Investigations, Electrochemical Behavior, DFT Studies, and Biological Evaluation
ChemistrySelect,
Год журнала:
2025,
Номер
10(15)
Опубликована: Апрель 1, 2025
Abstract
A
novel
series
of
tetraaza
nickel
(II)
macrocyclic
complexes
was
prepared
via
template
condensation
involving
the
ligand
2‐[4‐bromo‐2‐(2‐oxo‐1,2‐diphenyl‐ethylideneamino)‐phenylimino]‐1,2‐diphenyl‐ethanone
(ML)
and
selected
diamines,
such
as
4‐chloro
1,2‐phenylenediamine,
4‐bromo
1,2‐diaminotoluene,
4‐nitro
1,2‐diaminopropane,
ethylenediamine,
in
presence
NiCl
2
.6H
O.
The
its
resulting
were
characterized
through
elemental
analysis,
molecular
weight
determination,
a
range
spectral
techniques,
including
IR,
electronic
spectra,
1
H
NMR,
mass
spectrometry,
X‐ray
powder
diffraction,
DFT‐assisted
structural
characterization.
DFT
(TDDFT/B3LYP/6–311g(d)
method)
analysis
representative
Ni(II)
supports
plausible
structures
proposed
based
on
spectroscopic
studies.
These
analyses
suggest
that
each
complex
adopts
six‐coordinated
octahedral
geometry.
Their
redox
behavior
examined
detail
using
cyclic
voltammetry
(CV).
Furthermore,
new
tested
for
their
antimicrobial,
antioxidant,
antidiabetic,
antituberculosis
activities.
Antimicrobial
tests
conducted
against
E.
coli,
B.
subtilis,
A.
niger
,
P.
chrysogenum
synthesized
compounds.
antioxidant
properties
assessed
DPPH
assay
showed
[Ni(C
41
29
BrCl
N
4
)]
exhibited
highest
activity,
with
an
IC
50
value
89.13
mg/mL.
Additionally,
antimycobacterial
where
40
3
demonstrated
significant
effectiveness
inhibiting
growth
Mycobacterium
tuberculosis
.
Язык: Английский