Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
ABSTRACT
A
salamo‐type
bis‐oxime
ligand
H
2
L
was
synthesized,
which
reacted
with
Ni
(NO
3
)
·6H
O
in
different
reaction
solvents
to
synthesize
two
novel
heptanuclear
(II)
complexes:
[Ni
7
(L)
(
μ
‐OH)
8
(EtOH)
6
]·2CH
Cl
1
and
‐OMe)
(MeOH)
]·CH
).
X‐ray
crystal
diffraction
results
showed
that
each
ion
exhibits
a
distorted
octahedral
geometry.
Its
uniqueness
lies
the
fact
Complex
not
only
coordinates
units
but
also
ethanol
solvent
molecules
water
participating
bridging.
is
composed
of
methanol
connected
together.
Interestingly,
coordination
mode
due
solvents.
The
energy
gap
changes
ligand,
its
complexes
were
then
explored
by
DFT
calculations.
In
addition,
influence
weak
interaction
force
confirmed
through
in‐depth
study
electrostatic
potential,
IRI,
freedom
analysis,
Hirshfeld
surfaces
analyses,
important
for
explaining
formation
sites
supramolecular
structures.
UV‐visible
spectrometric
titration
tests
binding
ratios
ions
are
all
3:7,
consistent
structure.
Finally,
fluorescence
characterization
studies
both
exhibited
reduced
compared
L.
RSC Advances,
Год журнала:
2025,
Номер
15(8), С. 5977 - 5988
Опубликована: Янв. 1, 2025
Synthesis
and
characterization
of
a
heterogeneous
catalyst
based
on
silica
supported
Zn(
ii
)–hydrazone
complex
its
activity
in
the
chemical
CO
2
fixation
reaction
have
been
reported.
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(5)
Опубликована: Апрель 15, 2025
ABSTRACT
A
novel
mononuclear
Cr(III)
coordination
compound,
[Cr(HL)(N
3
)
2
],
was
synthesized
by
the
reaction
of
CrCl
·6H
O
and
NaN
with
Schiff
base
ligand
(H
L‐Cl).
The
]
were
characterized
spectroscopic
methods.
Single‐crystal
X‐ray
analysis
also
accomplished
to
confirm
structure
compound.
According
results
analysis,
this
compound
crystallizes
in
triclinic
system
P‐1
space
group
CrN
6
environment
around
ion
can
be
described
as
a
distorted
octahedral
geometry.
catalytic
activity
investigated
oxidation
benzyl
alcohol
presence
hydrogen
peroxide.
effects
various
parameters
investigated,
such
amount
catalyst,
concentration
oxidant,
temperature
solvent.
show
that
has
high
stability
could
selectively
convert
into
benzaldehyde.
electrochemical
behaviors
cyclic
voltammetry.
New Journal of Chemistry,
Год журнала:
2023,
Номер
47(13), С. 6102 - 6113
Опубликована: Янв. 1, 2023
Hantzsch
pyridine
ester
has
been
used
as
a
precursor
for
the
synthesis
of
dihydrazone
ligands.
Two
dinuclear
V(
v
)
complexes
obtained
by
these
ligands
show
high
catalytic
activity
in
oxidation
sulfides.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(3), С. 1503 - 1503
Опубликована: Янв. 25, 2024
A
series
of
polynuclear,
dinuclear,
and
mononuclear
Mo(VI)
complexes
were
synthesized
with
the
hydrazonato
ligands
derived
from
5-methoxysalicylaldehyde
corresponding
hydrazides
(isonicotinic
hydrazide
(H2L1),
nicotinic
(H2L2),
2-aminobenzhydrazide
(H2L3),
or
4-aminobenzhydrazide
(H2L4)).
The
metallosupramolecular
compounds
obtained
non-coordinating
solvents,
[MoO2(L1,2)]n
(1
2)
[MoO2(L3,4)]2
(3
4),
formed
infinite
structures
metallacycles,
respectively.
By
blocking
two
coordination
sites
cis-dioxo
ligands,
molybdenum
centers
have
three
occupied
by
ONO
donor
atoms
rigid
hydrazone
one
N
atom
pyridyl
amine-functionalized
ligand
subcomponents
neighboring
Mo
building
units.
reaction
in
methanol
afforded
analogs
[MoO2(L1-4)(MeOH)]
(1a-4a)
additional
monodentate
MeOH
ligands.
All
isolated
tested
as
catalysts
for
cyclooctene
epoxidation
using
tert-butyl
hydroperoxide
(TBHP)
an
oxidant
water.
impact
structure
lability
on
catalytic
efficiency
homogeneous
was
elucidated
based
theoretical
considerations.
Thus,
dinuclear
assemblies
exhibited
better
activity
than
polynuclear
complexes.
