ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(47)
Published: Dec. 1, 2024
Abstract
This
work
presents
the
designing
and
characterization
of
two
novel
metal
complexes
derived
from
a
Schiff
base,
N
,
’‐ethane‐1,2‐diylbis[1‐(2‐chloroquinolin‐3‐yl)methanimine]
(EBCQ),
coordinated
with
Ni
(II)
(NiEBCQ),
Cu
(CuEBCQ).
Structures
complex
derivatives
were
proposed
utilizing
variety
analytical
methods
having
elemental
analysis,
ultraviolet‐visible
spectroscopy,
mass
infrared
magnetic
properties,
conductivity
measurement,
thermal
analysis.
The
obtained
data
revealed
octahedral
geometries
for
both
NiEBCQ
CuEBCQ
complexes,
denoted
as
[Ni(EBCQ)(H
2
O)
(Cl)
]
[Cu(EBCQ)(H
],
respectively.
Density
functional
theory
computations
employed
confirming
molecular
structures
exploring
quantum
chemical
parameters
EBCQ
its
derivatives.
anti‐inflammatory
results
reveal
that
ligand
NiEBCQ,
CuEBCQ,
exhibit
varying
degrees
inhibition,
showing
highest
potency.
achieved
89.80%
inhibition
at
300
µM,
an
IC
50
value
86.38
indicating
superior
activity
compared
to
(
92.33
µM)
169.07
µM).
In
antioxidant
assays,
again
showed
most
pronounced
activity,
achieving
74.16
outperforming
89.06
101.58
antibacterial
tests
confirmed
complexes'
superiority,
particularly
which
displayed
excellent
against
Bacillus
cereus
ligand.
Molecular
docking
studies
targeting
specific
proteins
(5IKT
human
cyclo‐oxygenase‐2,
5IJT
peroxiredoxin
2)
performed
assess
binding
affinities
interactions
propose
promising
potential
application
therapeutic
agents
diverse
biological
activities.
Finally,
effectiveness
monitored
opposed
several
Gram‐positive
Gram‐negative
bacteria.
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 28, 2024
ABSTRACT
This
research
focused
on
the
design
and
comprehensive
characterization
of
two
novel
transition
metal
complexes
derived
from
symmetrical
Schiff
base
2‐[(2‐chloroquinolin‐3‐yl)methylidene]aminobenzenethiol
(CQAT),
coordinated
with
nickel(II)
(NiCQAT)
copper(II)
(CuCQAT)
ions.
The
structural
elucidation
these
was
achieved
through
a
range
advanced
analytical
techniques.
Thermal
analysis
revealed
stability
decomposition
patterns
complexes,
supporting
identification
their
coordination
geometries.
collective
data
indicated
that
both
NiCQAT
CuCQAT
adopt
octahedral
coordination,
specific
formulas
[Ni(CQAT)
2
(H
O)
]
[Cu(CQAT)
],
respectively.
To
complement
experimental
findings,
density
functional
theory
(DFT)
calculations
were
employed.
These
theoretical
confirmed
proposed
molecular
structures
provided
detailed
insights
into
key
quantum
chemical
parameters,
such
as
HOMO–LUMO
energies,
orbitals,
electronic
distributions,
which
are
crucial
for
understanding
complexes'
reactivity
stability.
Furthermore,
extensive
in
vitro
biological
evaluations
conducted
to
assess
anti‐inflammatory
antioxidant
properties
synthesized
complexes.
assays
demonstrated
exhibited
significantly
enhanced
bioactivity
compared
free
CQAT
ligand,
suggesting
synergistic
effect
ligand's
efficacy.
further
explore
mode
action,
docking
studies
performed
targeting
proteins—human
cyclooxygenase‐2
(PDB
ID:
5IKT)
human
peroxiredoxin
5IJT).
simulations
valuable
binding
affinities,
interaction
amino
acid
residues
involved
process,
offering
molecular‐level
potential
mechanisms.
findings
multidisciplinary
highlight
therapeutic
its
nickel
copper
positioning
them
promising
candidates
development
field
medicinal
chemistry.
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(47)
Published: Dec. 1, 2024
Abstract
This
work
presents
the
designing
and
characterization
of
two
novel
metal
complexes
derived
from
a
Schiff
base,
N
,
’‐ethane‐1,2‐diylbis[1‐(2‐chloroquinolin‐3‐yl)methanimine]
(EBCQ),
coordinated
with
Ni
(II)
(NiEBCQ),
Cu
(CuEBCQ).
Structures
complex
derivatives
were
proposed
utilizing
variety
analytical
methods
having
elemental
analysis,
ultraviolet‐visible
spectroscopy,
mass
infrared
magnetic
properties,
conductivity
measurement,
thermal
analysis.
The
obtained
data
revealed
octahedral
geometries
for
both
NiEBCQ
CuEBCQ
complexes,
denoted
as
[Ni(EBCQ)(H
2
O)
(Cl)
]
[Cu(EBCQ)(H
],
respectively.
Density
functional
theory
computations
employed
confirming
molecular
structures
exploring
quantum
chemical
parameters
EBCQ
its
derivatives.
anti‐inflammatory
results
reveal
that
ligand
NiEBCQ,
CuEBCQ,
exhibit
varying
degrees
inhibition,
showing
highest
potency.
achieved
89.80%
inhibition
at
300
µM,
an
IC
50
value
86.38
indicating
superior
activity
compared
to
(
92.33
µM)
169.07
µM).
In
antioxidant
assays,
again
showed
most
pronounced
activity,
achieving
74.16
outperforming
89.06
101.58
antibacterial
tests
confirmed
complexes'
superiority,
particularly
which
displayed
excellent
against
Bacillus
cereus
ligand.
Molecular
docking
studies
targeting
specific
proteins
(5IKT
human
cyclo‐oxygenase‐2,
5IJT
peroxiredoxin
2)
performed
assess
binding
affinities
interactions
propose
promising
potential
application
therapeutic
agents
diverse
biological
activities.
Finally,
effectiveness
monitored
opposed
several
Gram‐positive
Gram‐negative
bacteria.