Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
work
delves
into
the
synthesis,
characterization,
and
bioactivity
of
new
metal
complexes
imidazole
(IM)-based
benzimidazole
(BZ)-based
ligands
with
Fe(III)
Ni(II)
ions.
Broad
characterization
techniques,
including
elemental
analysis,
IR
spectroscopy,
magnetic
moment
measurement,
electronic
spectral
mass
spectrometry,
thermal
DFT
calculations,
confirmed
successful
preparation
a
1
:
(M
IM
BZ)
stoichiometry.
The
NiBZI
M
FeBZIM
possessed
octahedral
geometry,
one
two
water
molecules
coordinated
Ni(II),
respectively.
calculations
demonstrated
that
reduction
energy
gap
increase
in
softness
for
resulted
from
coordination,
enhancing
reactivity
biological
activity
complexes.
NiBZIM
exhibited
strong
antimicrobial
activity,
both
displaying
improved
efficacy
towards
Gram-positive
Gram-negative
bacteria
compared
their
corresponding
free
ligands.
Their
activities
were
comparable
to
standard
antibiotic
chloramphenicol.
Furthermore,
these
good
antifungal
Aspergillus
niger
Candida
albicans,
surpassing
MIC
values
also
ensured
enhanced
Other
than
properties,
significant
anti-inflammatory
where
complex
highest
an
IC50
value
closer
reference
drug.
Molecular
docking
studies
on
E.
coli
FabH-CoA
(PDB
ID:
1HNJ)
human
cyclooxygenase-2
(COX-2)
5IKT)
revealed
binding
affinity
formation
several
hydrogen
bonds
key
amino
acid
residues,
suggesting
favorable
antibacterial
activity.
Overall,
newly
synthesized
immense
potential
as
novel
drugs
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(6), P. 6466 - 6481
Published: Feb. 1, 2024
The
main
target
of
the
current
framework
is
designing
and
synthesizing
novel
iron(III),
cobalt(II),
cupper(II)
complex
compounds
emanating
from
bioactive
nucleus,
4-hydroxy-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione
ligand,
to
enhance
comprehension
as
potential
antibacterial,
antifungal,
antioxidant
alternatives
by
means
using
DFT
calculations
molecular
docking
investigation.
Thus,
new
complexes
had
been
synthesized
characterized
various
analytical
techniques,
including
elemental
analysis,
infrared
spectroscopy,
mass
spectrometry,
UV
conductivity,
magnetic
testing,
well
thermal
analysis.
ligand
exhibits
monobasic
bidentate
OO
donor
properties
toward
metal
core,
shown
its
spectroscopic
characteristics.
use
analysis
techniques
allows
for
identification
characterization
water
molecules
present
inside
complexes,
determination
their
distribution
patterns.
structures
free
have
verified
through
density
functional
theory
(DFT)
simulations.
These
simulations
also
provide
a
valuable
understanding
quantum
chemical
characteristics
associated
with
these
structures.
In
vitro
experiments
were
conducted
evaluate
antioxidant,
antifungal
corresponding
compounds.
DATA
revealed
that
heightened
biological
efficacy
related
unbound
ligand.
Furthermore,
was
done
understand
interactions
between
studied
proteins
derived
Escherichia
coli
(pdb
ID:
2vf5),
Aspergillus
flavus
3cku),
humans
5IJT),
which
are
considered
be
significant
in
drug
design.
Lastly,
correlation
efficacies
data
analyzed.