Reviews in Inorganic Chemistry,
Journal Year:
2021,
Volume and Issue:
41(2), P. 77 - 130
Published: Jan. 21, 2021
Abstract
Organometallic
complexes
of
neodymium
have
unique
coordinating
ability
to
form
both
micro
and
macromolecules
as
well
metal-based
polymers.
These
been
reported
in
different
fields
play
a
tremendous
role
luminescence,
catalytic,
biological
magnetic
applications.
So,
the
current
study
will
comprise
all
possible
routes
for
synthesis
organometallic
neodymium.
Neodymium
synthesized
single,
double,
triple
tetra
linkages
with
H,
C,
N,
O
S,
B,
X.
The
detailed
synthetic
classified
into
four
categories
but
brief,
forms
by
reacting
metal
chloride,
nitrate
or
oxide
(hydrated
dehydrated)
precursor
along
appropriate
ligand.
Most
applied
solvents
were
Toluene
THF.
required
range
temperature
based
on
nature
linkages.
authors
surveyed
research
work
published
through
2011–2020
provide
comprehensive
overview
understand
Reviews in Inorganic Chemistry,
Journal Year:
2021,
Volume and Issue:
42(3), P. 229 - 238
Published: Nov. 9, 2021
Abstract
N
-heterocyclic
carbenes
(NHCs)
are
an
eminent
class
of
having
a
heterocyclic
ring
in
which
divalent
carbon
atom
is
attached
directly
to
nitrogen
atom.
In
the
NHCs,
donation
lone
pair
another
important
research
dative
bonding
and
not
only
NHCs
bond
plays
functionalized
role
other
classes
complex
formation
like
ylidones
L
→
E
←
carbones
C
L.
M–NHC
L-M
sigma-dative
considered
as
strong
sigma-donor
ligands.
The
clear
picture
can
be
better
understood
by
pi-interaction.
M-L
pi
interaction
comprised
two
steps.
One
M
sigma-donation
π*
back
bonding.
This
donor
nature
NHC
also
its
behavior
organoselenium
studied
through
DFT
it’s
optimized
structure,
lengths,
molecular
vibrations
calculated.
Current Organic Synthesis,
Journal Year:
2023,
Volume and Issue:
21(8), P. 1075 - 1080
Published: Aug. 25, 2023
Background:
Azolium
salts
are
the
organic
used
as
stable
precursors
for
generat-ing
N-Heterocyclic
Carbenes
and
their
metal
complexes.
have
also
been
reported
to
significant
biological
potential.
Hence,
in
current
study,
four
tetra-dentate
azolium
were
derived
from
bis-azolium
by
a
new
synthetic
strategy.
Methods:
The
tetra
synthesized
reacting
imidazole
or
methyl
imid-azole
with
dibromo
xylene
(meta,
para)/
1-bromo
ethane
resulting
mono
bis
namely
I-IV.
V-VII
obtained
I
II-IV,
re-sulting
salts.
Each
product
was
analyzed
various
analytical
techniques,
i.e.,
microanalysis,
FT-IR,
NMR
(1H
&
13C).
Salts
evaluated
antiprolifera-tive
effect
against
human
colon
cancer
cells
(HCT-116)
using
MTT
assay.
Results:
Four
chemical
shifts
acidic
protons
between
8.5-9.5
δ
ppm
1H
resonance
of
respective
carbons
around
136-146
13C
indicated
successful
synthesis
Salt
V
showed
highest
IC50
value,
24.8
μM
among
all
com-pounds.
Conclusion:
Tetra-azolium
may
play
better
cytotoxicity
compared
mono-,
bi-&
tri-azolium
Reviews in Inorganic Chemistry,
Journal Year:
2021,
Volume and Issue:
41(2), P. 77 - 130
Published: Jan. 21, 2021
Abstract
Organometallic
complexes
of
neodymium
have
unique
coordinating
ability
to
form
both
micro
and
macromolecules
as
well
metal-based
polymers.
These
been
reported
in
different
fields
play
a
tremendous
role
luminescence,
catalytic,
biological
magnetic
applications.
So,
the
current
study
will
comprise
all
possible
routes
for
synthesis
organometallic
neodymium.
Neodymium
synthesized
single,
double,
triple
tetra
linkages
with
H,
C,
N,
O
S,
B,
X.
The
detailed
synthetic
classified
into
four
categories
but
brief,
forms
by
reacting
metal
chloride,
nitrate
or
oxide
(hydrated
dehydrated)
precursor
along
appropriate
ligand.
Most
applied
solvents
were
Toluene
THF.
required
range
temperature
based
on
nature
linkages.
authors
surveyed
research
work
published
through
2011–2020
provide
comprehensive
overview
understand
