Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
64(1), P. 757 - 760
Published: Dec. 24, 2024
In
the
1970s
Hawthorne
reported
an
electrochemical
dehydrocoupling
reaction
of
closo-carborane
anion
[HCB9H91–]
1
to
form
biscarborane
[C2B18H182–]
2.
this
Communication
we
show
that
said
"Hawthorne
Reaction"
can
be
achieved
thermally
and
it
tolerates
C-butylation.
The
new
compound
2butyl
was
fully
characterized
by
11B,
1H,
13C
NMR
spectroscopies,
high-resolution
mass
spectrometry,
single-crystal
X-ray
diffraction.
One
interesting
caveat
is
2
or
only
when
they
are
salts
Li+
not
NEt4+,
Na+,
K+,
Cs+.
This
observation
means
in
some
way
facilitates
process,
introducing
a
kind
effect.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 17, 2024
Abstract
Rechargeable
magnesium‐ion
batteries
(RMBs)
have
garnered
increasing
research
interest
in
the
field
of
post‐lithium‐ion
battery
technologies
owing
to
their
potential
for
high
energy
density,
enhanced
safety,
cost‐effectiveness,
and
material
resourcefulness.
Despite
substantial
advancements
RMB
research,
a
number
intrinsic
challenges
remain
unresolved,
such
as
strong
Coulombic
interaction
between
Mg
2+
host
crystal
structure
cathode
materials,
sluggish
diffusion
kinetic,
poor
electrolyte
compatibility,
formation
passivation
films
on
anode
interface.
These
issues
hinder
commercial
applications
RMBs.
This
review
provides
comprehensive
overview
progress
key
areas
including
representative
storage
cathode/anode
materials
conducting
electrolytes.
Additionally,
recent
developments
electrode‐electrolyte
interface
regulations
pouch‐cell
fabrication
are
outlined,
highlighting
current
implementation
effective
solutions.
Finally,
future
directions
proposed
guide
development
high‐performance
RMBs
with
practical
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(48)
Published: June 29, 2024
Abstract
Rechargeable
magnesium
batteries
(RMBs)
have
emerged
as
one
of
the
promising
energy
storage
devices,
and
polymer
electrolytes
with
high
safety,
stability,
structural
flexibility
are
ideal
choice
for
RMBs.
Herein,
a
novel
in
situ
crosslinked
gel
electrolyte,
PDTE
is
reported,
via
facile
ring‐opening
polymerization
The
electrolyte
exhibits
remarkable
room‐temperature
ionic
conductivity
2.8
×
10
−4
S
cm
−1
highly
reversible
Mg
plating/stripping
behavior
(98.9%
Coulombic
efficiency,
2000
cycles)
low
overpotential
(<0.1
V).
Mo
6
8
||PDTE||Mg
coin
cells
demonstrate
exceptional
cycling
stability
rate
capability
at
wide
temperature
range
(−20
to
50
°C),
characterizing
an
average
discharge
capacity
81.6
mAh
g
C
7500
cycles
room
temperature,
97.4
111.7
0.2
400
−20
°C,
respectively.
pouch
cell
density
204
Wh
kg
retention
90.6%
350
cycles,
along
significantly
improved
safety
flexibility.
Additionally,
good
compatibility
conversion‐type
cathode
Cu
3
Se
2
validates
application
versatility
PDTE.
development
this
provides
feasible
approach
research
on
semi‐solid‐state
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(61)
Published: Aug. 22, 2024
Abstract
Rechargeable
magnesium
batteries
(RMBs)
have
the
potential
to
provide
a
sustainable
and
long‐term
solution
for
large‐scale
energy
storage
due
high
theoretical
capacity
of
(Mg)
metal
as
an
anode,
its
competitive
redox
(Mg/Mg
2+
:−2.37
V
vs.
SHE)
natural
abundance.
To
develop
viable
with
density,
electrolytes
must
meet
range
requirements:
ionic
conductivity,
wide
electrochemical
window,
chemical
compatibility
electrode
materials
other
battery
components,
favourable
electrode‐electrolyte
interfacial
properties
cost‐effective
synthesis.
In
recent
years,
significant
progress
in
electrolyte
development
has
been
made.
Herein,
comprehensive
overview
these
advancements
is
presented.
Beginning
early
developments,
we
particularly
focus
on
aspects
their
correlations
properties.
We
also
highlight
design
new
anions
practical
electrolytes,
use
additives
optimize
anode‐electrolyte
interfaces
polymer
electrolytes.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Highly
regioselective
B(12)
substitutions
of
the
monocarborane
anion
[CB11H12]-
has
been
a
challenge.
Here,
we
synthesized
stable
B-O-N
zwitterionic
compound
with
an
impressive
yield
(isolated
up
to
98%)
and
excellent
regioselectivity
at
position
under
catalyst-free
conditions.
The
kinetics,
substituent
effect,
capture
experiments
are
paired
theoretical
calculations,
showing
that
reaction
mechanism
is
oxidation-induced
nucleophilic
substitution.
hydride
abstracted
by
oxoammonium
oxidant
lower
cleavage
energy
4.2
kcal
mol-1
than
B(7-11)
positions,
thereby
changing
electronegativity
upon
conversion
neutral
[CB11H11],
in
turn
giving
very
high
for
This
work
presents
effective
method
synthesizing
oxygen
derivatives
anion.
Synthesis,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 11, 2024
Abstract
Carboranes
are
a
type
of
molecular
clusters
consisting
carbon,
hydrogen,
and
boron
atoms.
They
possess
unique
characteristics,
such
as
three-dimensional
aromaticity,
icosahedral
geometry,
robustness.
Functionalized
carboranes
have
been
utilized
in
various
fields,
including
medicine,
materials,
organometallic/coordination
chemistry.
In
this
context,
selective
functionalization
o-carboranes
has
received
tremendous
attention,
specifically
the
regio-
enantioselective
modification
ten
chemically
similar
BH
vertices
within
carborane
cage.
recent
years,
significant
progress
made
catalytic
vertex-specific
functionalization,
well
achieving
cage
BH.
This
review
provides
an
overview
advancements
research
field.
1
Introduction
2
Carboxy-Assisted
Functionalization
2.1
Formation
B–C
Bonds
2.2
B–N
2.3
B–O
2.4
B–X
2.5
Consecutive
B–Y
(Y
=
N,
O)
3
N-Based
Directing-Group-Assisted
B–H
3.1
Acylamino
Directing
Group
3.2
Amide
3.3
Pyridyl
3.4
Imine
4
Phosphinyl-Assisted
Cage
5
Bidentate-Directing-Group-Assisted
6
Other
7
Conclusions
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(32), P. 15053 - 15060
Published: July 27, 2024
In
this
work,
we
report
the
first
example
of
PCET
reactivity
for
a
boron
cluster
compound,
zwitterionic
nido-carboranyl
diphosphonium
derivative
7-P(H)tBu2-10-P(H)iPr2-nido-C2B10H10.
This
main-group
reagent
efficiently
transfers
two
electrons
and
protons
to
quinones
yield
hydroquinones
regenerate
neutral
closo-carboranyl
diphosphine,
1-PtBu2-2-PiPr2-closo-C2B10H10.
As
have
previously
reported
conversion
diphosphine
into
nido-
upon
reaction
with
main
group
hydrides,
transformation
herein
represents
complete
synthetic
cycle
metal-free
reduction
quinones,
redox-active
carboranyl
scaffold
acting
as
mediator.
The
proposed
mechanism
reduction,
based
on
pKa
determination,
electrochemical
studies,
kinetic
isotope
effect
involves
electron
transfer
from
quinone
coupled
delivery
protons.