Complexes of β-lactam antibiotics and their Schiff-base derivatives as a weapon in the fight against bacterial resistance
Coordination Chemistry Reviews,
Год журнала:
2023,
Номер
493, С. 215326 - 215326
Опубликована: Июль 4, 2023
Язык: Английский
Synthesis, characterization, biological activity, DFT, molecular docking and ADME studies of metal (II) complexes of a bidentate Schiff’s base (E)-4-chloro-2-((2-hydroxy-3-methoxybenzylidene)amino)benzoic acid
Journal of Dispersion Science and Technology,
Год журнала:
2025,
Номер
unknown, С. 1 - 14
Опубликована: Фев. 11, 2025
Язык: Английский
Design, synthesis, and density functional theory studies of a new selective chemosensor for Pb2+
Heliyon,
Год журнала:
2023,
Номер
9(9), С. e20206 - e20206
Опубликована: Сен. 1, 2023
Herein,
we
have
focused
on
a
new
colorimetric
ligand
synthesized
from
the
reaction
of
2-hydroxy-5-methylbenzene-1,3-dialdehyde
with
2-amino-thiophenol,
and
investigated
its
activity
as
sensor.
In
this
regard,
sensory
towards
different
ions
(Mn2+,
Cu2+,
Co2+,
Fe2+,
Fe3+,
Zn2+,
Ni2+,
Cd2+,
Ag+,
Na+,
Cs+,
Mg2+,
Al3+,
Ba2+,
K+,
Pb2+)
was
studied.
The
specificity
ion
bindings
is
discussed
through
UV–Vis
analysis.
that
showed
remarkable
sensitivity,
detection
limit
0.001
ppb.
Additionally,
presence
Pb2+
can
be
visually
detected
color
change
colorless
to
yellow.
last
part
work,
seek
predict
available
experimental
measurements.
Density
functional
theory
(DFT)
quantum
atoms
in
molecules
(QTAIM)
are
employed
examine
bonding
between
ion.
effect
water
solvent
thoroughly
examined
for
all
steps
via
conductor-like
Polarizable
Continuum
Model
(CPCM).
theoretical
findings
revealed
electronic
properties,
including
energy
gap,
adsorption
energy,
charge/energy
transfer,
optical
characteristics,
undergo
significant
changes
when
cations
present.
Hence,
it
inferred
newly
chemosensor
(NC)
highly
efficient
detecting
Pb2+.
Язык: Английский
A green and efficient process for the stepwise extraction of Cu, Ni, Co, Mn, and Li from hazardous waste with a novel solvent extraction system of D2EHPA-NNPA
Green Chemistry,
Год журнала:
2023,
Номер
25(23), С. 10020 - 10032
Опубликована: Янв. 1, 2023
Schematic
structure
of
D2EHPA
and
NNPA
the
metal
extraction
pH
isotherms
their
synergistic
system.
Язык: Английский
Synthesis and characterization of new 4-amino-5-methyl-4H-1,2,4-triazole-3-thiol (MMTP) Schiff base for spectrophotometric detection of iron(III) and copper(II) ions in laboratory and different water samples: A biological and molecular docking exploration
Journal of Molecular Structure,
Год журнала:
2024,
Номер
1318, С. 139255 - 139255
Опубликована: Июль 10, 2024
Язык: Английский
Novel Cu-II Complexes of 2-Hydroxy 4-Methoxy Benzylidene 2-Hydroxy Benzhydrazide: Synthesis, Spectral Characterization, Thermal, Antimicrobial, Antioxidant and Catalytic activity Study
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 4, 2024
Abstract
The
novel
hydrazone
ligand
2-hydroxy
4-methoxy
benzylidene
benzhydrazide
[HL]
was
prepared
by
condensing
and
benzaldehyde
in
methanol
solvent.
Cu-II
complexes
[Cu(HL)(NO
3)].1/3H
2O
(1a),
[{Cu
(HL)}
2
(μ-SO
4)].1
2/
3H
2O(2a),
[Cu(HL)(H
2O)
Cl](3a)
were
synthesized
refluxing
salts
CuNO
3.3H
2O
CuSO
4.5H
2O
CuCl
2.2H
2O
with
solution
of
characterized
spectral
techniques
(FT-IR,
1H-NMR,
13C–NMR,UV-Visible,
PXRD
study).The
are
further
thermo
gravimetric(TG)analysis,
molar
conductivity,
elemental
analysis
magnetic
susceptibility
measurement
study.
FT-IR
spectra
provides
valuable
information
about
different
coordination
sites.
UV-Visible
spectroscopy
reflect
LMCT
bands
from
242718-
261780
cm
-1
and
d-d
the
range
143884-156250
cm
-1
addition
to
n-π*and
π
-π*transition
all
complexes.
Square
planar
square
pyramidal
geometry
proposed
for
as
illustrated
magnetic,
electronic
spectroscopic
data.
X-ray
powder
diffraction
reveals
crystalline
nature
experimental
results
TGA
good
agreement
data
A
comparison
physicochemical
very
useful
creating
correct
assignments
understanding
structure
complex.
act
tribasic
tridentate
chelating
through
phenolate
oxygen,
azomethine
nitrogen
oxygen
enolate
donar
functionality
copper-II
ion.
antibacterial
potential
complex
catalysts
evaluated
against
human
pathogenic
bacteria
such
as
Bacillus
subtilties,
Bacillus
cereus,
Escherichia
coli,
Pseudomonas
velgaris,
and
Staphylococcus
aureus
etc.
Also,
Cu
(II)
demonstrate
significant
antioxidant
activity.
catalytic
performance
alcohol
oxidation
using
hydrogen
peroxide
a
green
oxidant
is
also
investigated.
Язык: Английский
Synthesis of <I>N</I>'-(2,3-dihydroxybenzylidene)-4-methylbenzohydrazide: Spectroscopic Characterization and X-ray Structure Determination
Modern Chemistry,
Год журнала:
2023,
Номер
unknown
Опубликована: Май 10, 2023
p-Toluic
hydrazide
was
used
for
synthetizing
a
new
Schiff
base
N'-(2,3-dihydroxybenzylidene)-4-methylbenzohydrazide
(I).
The
prepared
compound
characterized
by
elemental
analysis,
infrared
and
1H
13C
NMR
spectroscopy
techniques,
the
structure
of
(I)
determined
single-crystal
X-ray
diffraction
study.
(C15H14N2O3)
crystallises
in
monoclinic
space
group
P21/n
with
following
unit
cell
parameters:
a
=
11.7820
(6)
Å,
b
8.5278
(4)
c
13.6054
(7)
β
109.346
(5)°,
V
=
1289.81
(12)
Å3,
Z
4,
R1
0.071
wR2
0.197.
shows
that
adopts
an
E
configuration
respect
to
double
bond
C7=N1.
carbonyl
oxygen
atom
O3
nitrogen
N1
moiety
are
syn
conformation
C8—N2
bond.
crystal
packing
is
stabilized
intramolecular
O(phenol)–H•••N(carbohydrazide)
which
results
S(6)
ring
motif
intermolecular
O(phenol)–H•••O(carbohydrazide)
hydrogen
bonds
form
chains.
carbonohydrazide
C=N–N–C(O)–N–N=C
fragment
almost
coplanar
two
benzene
rings
dihedral
angles
their
mean
planes
10.35°
[C1—C6]
7.99°
[C9—C14],
respectively.
angle
between
phenyl
2.46°.
Язык: Английский
New N-heterocyclic aroyl hydrazone containing 4-oxopiperidine nucleus and its metal complexes: synthesis, spectroscopic, thermal, DFT, molecular docking and antimicrobial studies
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 18, 2023
Abstract
In
order
to
resist
the
growth
of
human
pathogenic
microorganisms,
we
have
synthesized
a
new
N-heterocyclic
hydrazone
ligand
(
E
)–N'–(2-hydroxynaphthalen-1-yl)methylene-4-oxopiperidine-1-carbohydrazide
(H
2
L)
from
condensation
reaction
4-oxo-1-carbopiperidone
hydrazide
and
2-hydroxy-1-naphthaldehyde.
The
reacted
with
metal
salt
(M(II/III).Cl
).nH
O
formed
two
types
complexes
[M(III)C
17
H
19
N
3
5
Cl]
[M(II)C
20
adopted
octahedral
geometry;
where
M
=
Cr(III),
Fe(III),
Mn(II),
Co(II),
Ni(II),
Cu(II)
ion.
was
thoroughly
characterized
by
elemental
analysis,
FT
−
IR,
UV
Vis,
NMR
1
H,
13
C),
HR-mass
spectroscopy.
Furthermore,
structural
properties
been
established
on
basis
UV-vis
spectra,
molar
conductivity,
magnetic
susceptibility,
ESR,
TG-DTA
analysis.
behaves
dibasic,
linkages
via
phenolic-O,
azomethine-N,
enolic-O
atoms
in
(III)
monobasic
metal(II)
complexes.
decomposition
pattern
were
ascertained
thermal
kinetics
accountability
Coats–Redfern
relation.
compounds
excited
at
λ
ex
380
nm
observed
good
emission
intensity
em
λ527–533
nm.
surface
morphology
distinct
complex
proven
an
imaging
SEM
molecular
geometry
optimization,
quantum
chemical
retrieved
DFT.
ADMET
score
predicted
as
drug-likeness
prospect
admetSAR
method.
docking
outcomes
displayed
binding
Adenylate
kinase,
Peptide
deformylase
(bacterial
enzyme)
DNA
polymerase
(fungal
enzyme).The
vitro
antimicrobial
potency
its
showed
promising
activity
against
bacterial
colony
Escherichia
coli
,
Salmonella
typhi
Staphylococcus
aureus,
Bacillus
substilis)
fungal
Candida
albicans
Aspergillus
niger)
.
Язык: Английский
New aroyl heterocyclic (E)-N′-((2-hydroxynaphthalen-1-yl)methylene)-4-oxopiperidine-1-carbohydrazide and its metal complexes: synthesis, spectroscopic, thermal, DFT, molecular docking and antimicrobial studies
Research on Chemical Intermediates,
Год журнала:
2023,
Номер
50(2), С. 745 - 788
Опубликована: Ноя. 9, 2023
Язык: Английский