Abstract
The
use
of
Schiff
bases
especially
in
chemistry,
medicine,
pharmacy,
and
various
industries
has
increased
the
importance
these
compounds.
their
derivatives
show
important
bioactive
properties
a
wide
range.
Compounds
containing
phenol
its
molecular
structures
have
potential
to
capture
free
radicals
associated
with
diseases.
In
this
study,
five
new
(13–17)
having
piperidine
rings
groups,
which
be
used
as
antioxidants,
were
synthesized
for
first
time
using
microwave
energy.
antioxidant
effects
compounds
syntheses
(7–12)
obtained
inhibitory
abilities
against
some
metabolic
enzymes
including
acetylcholinesterase
(AChE)
human
carbonic
anhydrases
I
II
(hCAs
hCAs
II)
determined.
addition
experimental
findings,
docking
studies
performed
order
provide
ideas
on
structure‐based
drug
design
(PDB
ID:
4EY6).
light
results
obtained,
it
is
thought
that
study
will
useful
guide
food,
medical,
pharmaceutical
future.
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(3)
Опубликована: Янв. 8, 2024
New
Cu
(II),
VO
Ag(I),
and
Pd
(II)‐[BIP
=
4,6‐dimethyl‐N‐(octahydro‐2H‐benzimidazol‐2‐ylidene)pyrimidin‐2‐amine]
chelates
have
been
synthesized
by
the
reaction
of
BIP
ligand
resulting
from
condensation
benzimidazole
guanidine
as
well
acetylacetone
with
tested
metal
salts.
The
suggested
structures
prepared
compounds
investigated
spectroscopically
through
(FT‐IR,
NMR,
Mass
spectra,
UV–Vis
spectra),
CHN
analyses,
conductivity,
pH
stability
asmagnetic
moment
measurements.
TGA
studies
also
studied
to
govern
thermal
behavior,
stability,
decomposition
chelates.
Structural
study
exposed
their
chemical
transformation
chelation
metals.
predicted
a
hexa‐coordinated
geometry
for
chelates,
whereas
tetra‐coordinated
Ag
DFT/B3LYP
theoretical
method
was
applied
obtain
optimized
geometry,
molecular
electrostatic
potential
(MEP)
surface,
HOMO‐LUMO
analysis
compounds.
For
estimation
in
vitro
study,
all
screened
biochemical
features,
including
antioxidant,
antimicrobial
performances,
cytotoxicity.
antioxidant
performance
molecules
has
DPPH
displayed
close
against
standard
drugs.
cytotoxic
estimated
various
cancer
cell
lines:
(Hep‐G2,
HCT‐116,
MCF‐7)
using
MTT
calculated
viability
corresponding
human
cell.
DNA
binding
capability
evaluated
absorption
spectroscopic,
viscosity
estimation,
gel
electrophoresis.
outcomes
good
tendency
constant
1.01
×
10
4
1.99
M
−1
order
BIPCu>
BIPVO
>
BIPPd
BIPAg,
respectively.
Finally,
docking
simulation
results
indicated
that
complexes
were
located
intercalation
site
confirmed
experimental
findings.
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(6)
Опубликована: Апрель 7, 2024
This
study
was
planned
to
prepare
new
mixed
ligand
chelates
derived
from
N‐(4,6‐dimethylpyrimidin‐2‐yl)‐3a,4,5,6,7,7a‐hexahydro‐1H‐benzimidazol‐2‐amine
(BIP),
and
imidazole
(I).
They
identified
through
CHN
study,
spectroscopic
(NMR,
FT‐IR,
UV–Vis),
conductivity,
magnetic
susceptibility,
mass
analysis,
thermal
analysis.
Correlation
between
all
results
exposed
that
the
BIP
performed
as
a
bi‐dentate
NN
donation
locations,
where
co‐ligand
shows
N–H
monodentate.
The
optimization
for
studied
led
formation
of
distorted
octahedral
geometry
BIPICu
BIPIVO
chelates,
(tetrahedral
square
planar)
BIPIAg
BIPIPd
respectively,
around
metal
salt.
B3LYP
level,
B3LYP/6‐311G**
level
free
ligand,
B3LYP/6–311G**‐LANL2DZ
functional
solid
were
used
in
density
theory
(DFT)
calculations.
findings
showed
DFT
calculations
produce
conclusions
are
consistent
with
those
experiments.
resulting
compounds'
nonlinear
optical
properties
examined
by
calculating
hyperpolarizability
(
β
)
molecular
polarizability
α
parameters,
which
gave
rise
several
unexpected
synthesized
compounds.
Using
agar
well
diffusion
method,
antimicrobial
activity
produced
compounds
experimentally
confirmed
against
subset
G+
G−
bacteria.
To
ascertain
how
these
substances
attach
targeted
protein
binding
sites,
docking
mechanism
microbially
resistant
their
suppressed
microbial
pocket
receptors
investigated.
Also,
DNA
estimated
structures
tested
electronic
absorption
spectrum,
viscosity
estimation,
gel
electrophoresis.
Data
proposed
link
using
an
intercalation,
electrostatic,
covalent
mechanism.
Moreover,
antioxidant
performance
governed
radical
scavenging
techniques
vitro.
In
addition,
MTT
assay
has
been
worked
out
explore
vitro
cytotoxic
impending.
All
assumed
antimicrobial,
antitumor,
performances
cause
them
suggest
drugs.
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(9)
Опубликована: Июнь 23, 2024
Some
novel
Fe
III
,
Cu
II
and
Pd
chelates
incorporating
N′‐(1‐methyl‐2‐oxoindolin‐3‐ylidene)benzohydrazide
(MIBA)
were
fabricated.
The
tested
compounds
investigated
using
thermogravimetric
analysis
(TGA),
CHN,
spectra
(IR,
mass
spectra,
NMR),
melting
point,
magnetic
moments,
molar
conductance,
ultraviolet–visible
spectroscopy,
powder
X‐ray
diffraction,
computational
studies.
conductance
results
showed
that
the
are
electrolytes.
Magnetic
electronic
applied
to
deduce
coordinating
ability
of
ligand,
geometric
structure
studied
is
found
be
octahedral,
distorted
square
planar
for
chelates,
respectively.
TGA
study
these
complexes
displays
hydrated
H
2
O
molecules,
acetate,
nitrate
removed
in
first
second
degradation
steps
followed
directly
by
ligand
leaving
metal
oxide
as
residue.
thermodynamic
factors,
like
ΔS*,
ΔH*,
E*,
A,
ΔG*
evaluated
from
curves
explained.
density
functional
theory
(DFT)/B3LYP
computation
method
was
estimation
molecular
electrostatic
potential
(MEP;
highest
occupied
orbital
[HOMO]
lowest
unoccupied
[LUMO])
energy
compounds.
In
an
vitro
study,
antimicrobial
effects
prepared
screened
on
various
strains
bacteria
fungi.
It
exposed
a
good
biological
efficacy
through
IC
50
close
reference
drugs
antitumor
against
(MCF‐7,
Hep‐G2,
HC‐T116)
cell
lines.
data
obtained
displayed
promising
activity.
antioxidant
DPPH
assay.
explained
dynamic
satisfying
performance.
Also,
crystal
structures
breast
cancer
protein
(PDB
ID:
3HB5)
Escherichia
coli
2VF5)
performed
docking
simulation.
Data
simulation
suggestions
which
have
behavior
well
obvious
benefit
pharmaceutical
business.
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(3)
Опубликована: Фев. 17, 2025
ABSTRACT
The
synthesis
of
4‐Bromo‐2‐({2‐[(5‐bromo‐2‐hydroxy‐benzylidene)‐amino]‐5‐nitro‐phenylimino}‐methyl)‐phenol
(BSNP
ligand),
a
straightforward,
highly
adjustable,
and
efficient
BSNP
ligand,
was
demonstrated.
Four
novel
ligand
coordinating
compounds
were
created.
structures
these
clarified
by
variety
spectroscopic
analytical
techniques,
such
as
elemental
analysis
(CHN),
spectroscopy
(IR,
NMR,
mass
spectrometry),
conductivity,
magnetic
susceptibility,
UV–Vis
spectrum
studies,
theoretical
investigations.
Additional
the
showed
that
they
surrounded
an
octahedral‐coordinating
environment.
With
conductance
values
ranging
from
0.9.60
to
11.87
Ω
−1
cm
2
mol
,
molar
Fe
(III),
Zn
(II),
Cu
Ru
(III)
complexes
are
non‐electrolytes
in
fresh
DMSO
solutions,
with
exception
BSNPRu
complex,
which
is
mono
electrolyte.
According
IR
spectra,
uses
(N
O)
donor
sites
(C=N
C‐O)
groups
moiety
coordinate
through
metal
ions
tetra‐dentate
form.
A
1:1
(metal:ligand)
ratio
proposed
Job's
approach
based
on
data
solution
complexation.
stability
constant
(
K
f
)
values,
complexes'
order
found
be
BSNPFe
>
BSNPCu
BSNPZn.
pH
profile
under
study
stable
throughout
broad
range,
usually
between
=
4
10.
geometric
coordination
capabilities
inferred
use
electronic
studies.
To
gain
deeper
insights
into
reactivity
potential
biological
activity
synthesized
complexes,
DFT
calculations
performed.
computational
carried
out
using
DFT/B3LYP/6‐311g
(d,p)/LANL2DZ
level
gas
phase
explore
active
quantum
chemical
compounds.
Building
encouraging
results
our
in‐vitro
analyses,
demonstrated
notable
antimicrobial,
antifungal,
anticancer
properties
molecular
docking
simulations
subsequently
performed
further
substantiate
promising
activities.
anti‐pathogenic
generated
materials
experimentally
verified
against
subset
gram
(+)
(−)
bacteria
well
some
fungi
agar
diffusion
method.
Additionally,
BSPN
ligand's
its
compounds'
cytotoxic
action
liver
cells,
breast,
colon
cancers
investigated.
Furthermore,
examined
ability
suppress
DPPH
radical
examined.
landing
ascertain
how
produced
attached
specific
protein
binding
sites.
Some
chelates
incorporating
their
elucidated
different
physico‐chemical,
computational.
Moreover,
all
new
investigated
tested
vitro
selected
microbial
strains
cancer
cell
lines
free
radicals.
biomedical
applications
confirmed
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(3)
Опубликована: Янв. 29, 2024
New
binary
and
mixed‐ligand
nickel
(II)
chelates
of
a
hyrdazone
ligand
(HYQX)
carrying
alloxan
quinoline
moieties
were
synthesized.
Spectroscopic
analytical
techniques
effectively
used
for
identifying
the
composition
structure
prepared
HYQX
chelates.
The
neutral
nature
Ni‐HYQX
complexes
was
demonstrated
by
molar
conductivity
studies,
magnetic
moment
values
revealed
octahedral
geometry.
results
that
behaves
as
monoanionic
di‐/tridentate
chelating
agent
in
all
complexes,
except
nitrato
C2
acetato
C4
which
are
bi‐
tri‐nuclear
respectively,
with
unique
mode
coordination.
thermal
decomposition
patterns
investigated
relation
to
structure,
thermodynamic
parameters
successfully
calculated.
molecular
structural
features
its
Ni
based
on
density
functional
theory
(DFT)
level
at
B3LYP/6‐311G(d,p)
LanL2dz
level.
found
have
anticancer
action
against
Ehrlich
Ascites
Carcinoma.
A
docking
investigation
conducted
determine
what
way
title
compounds
connect
CDK‐5
inhibitor‐crystal
inhibitor
EFP
CDK‐2
(PDB
ID:
3IG7)
order
verify
their
biological
activity.