Hydride
(H–)
species
on
oxides
have
been
extensively
studied
over
the
past
few
decades
because
of
their
critical
role
in
various
catalytic
processes.
Their
syntheses
require
high
temperatures
and
presence
hydrogen,
which
involves
complex
equipment,
energy
costs,
strict
safety
protocols.
tend
to
decompose
atmospheric
oxygen
water,
reduces
activities.
These
challenges
highlight
need
for
further
research
improve
stability
efficiency
processes
develop
safer
cost-effective
synthesis
methods.
This
paper
introduces
an
ultrasonic
fabrication
method
gallium
hydride
liquid
metal
(LM)
nanoparticles
(Ga–H@LM
NPs)
water
describes
evaluation
properties.
The
Ga–H@LM
NPs
were
synthesized
by
dispersing
metals
eutectic
gallium–indium
using
a
two-step
ultrasonication
process
ice
bath.
Ga–H
was
confirmed
Fourier-transform
infrared
spectroscopy.
demonstrated
rapid
hydrogenation
4-nitrophenol
reductive
degradation
azo
dyes
within
minutes
without
external
reducing
agents
like
NaBH4.
proposed
mechanism
high-energy
cavitation
at
interface
between
LM
promotes
formation
H2
from
its
activation
form
particles
surface
during
ultrasonication.
study
has
significant
implications
advancing
field
catalysis
it
provides
novel
efficient
stable
oxides.
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
122(9), P. 8261 - 8312
Published: March 7, 2022
The
addition
of
a
B–H
bond
to
an
unsaturated
(polarized
or
unpolarized)
is
powerful
and
atom-economic
tool
for
the
synthesis
organoboranes.
In
recent
years,
s-block
organometallics
have
appeared
as
alternative
catalysts
transition-metal
complexes,
which
traditionally
catalyze
hydroboration
bonds.
Because
rapid
development
in
field
bonds
catalyzed
by
alkali
(Li,
Na,
K)
alkaline
earth
(Mg,
Ca,
Sr,
Ba)
metals,
we
provide
detailed
updated
comprehensive
review
that
covers
synthesis,
reactivity,
application
metal
polarized
well
carbon–carbon
Moreover,
describe
main
reaction
mechanisms,
providing
valuable
insight
into
reactivity
catalysts.
Finally,
compare
these
complexes
with
other
redox-neutral
catalytic
systems
based
on
p-block
metals
including
aluminum
f-block
lanthanides
early
actinides.
this
review,
aim
comprehensive,
authoritative,
critical
assessment
state
art
within
highly
interesting
research
area.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(5), P. 2034 - 2050
Published: Jan. 24, 2022
The
usage
of
carbon
monoxide
(CO)
as
a
C1
feedstock
for
carbonylation
has
been
an
important
subject
numerous
studies
over
century.
chemistry
in
this
field
evolved
significantly,
and
several
processes
(e.g.,
Fischer-Tropsch,
Monsanto,
Cativa
process)
have
even
industrialized
to
serve
humankind
our
daily
lives.
CO
is
also
crucial
ligand
(carbonyl)
organometallic
chemistry,
transition-metal
carbonyl
complexes
widely
used
homogeneous
catalysts
various
chemical
transformations.
Historically,
carbonyls
considered
be
dominant
these
purposes.
In
recent
decades,
main-group
elements,
especially
naturally
abundant
elements
the
Earth's
crust
such
silicon
aluminum,
gained
much
attention,
they
are
eco-friendly
low
toxicity
compared
late
transition
metals.
Recent
developments
revealed
reactivity
which
can
mimic
that
toward
small
molecules
H2,
alkenes,
alkynes,
along
with
monoxide.
This
Perspective
highlights
activation
by
compounds
leads
formation
or
insertion
into
element
center
well
reductive
homologation
CO.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(14), P. 5930 - 5973
Published: Jan. 1, 2022
Radical
species
are
significant
in
modern
chemistry.
Their
unique
chemical
bonding
and
novel
physicochemical
properties
play
roles
not
only
fundamental
chemistry,
but
also
materials
science.
Main
group
element
radicals
usually
transient
due
to
their
high
reactivity.
Highly
stable
often
stabilized
by
π-delocalization,
sterically
demanding
ligands,
carbenes
weakly
coordinating
anions
recent
years.
This
review
presents
the
advances
synthesis,
characterization,
reactivity
physical
of
isolable
main
radicals.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(10), P. 5054 - 5082
Published: Jan. 1, 2024
This
review
summarises
advances
in
the
chemistry
of
low-oxidation
state
and
hydrido
group
2
metal
complexes,
focussing
on
their
use
for
reductive
activation
feed-stock
gaseous
small
molecules,
subsequent
transformation
into
value
added
products.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(21), P. 8793 - 8814
Published: Jan. 1, 2022
With
sustainability
at
the
forefront
of
current
polymerisation
research,
typically
earth-abundant,
inexpensive
and
low-toxicity
main
group
metals
are
attractive
candidates
for
catalysis.
Main
have
been
exploited
in
a
broad
range
polymerisations,
ranging
from
classical
alkene
to
synthesis
new
bio-derived
degradable
polyesters
polycarbonates
via
ring-opening
copolymerisation.
This
tutorial
review
highlights
efficient
catalysts
based
on
Group
1,
2,
Zn
13
metals.
Key
mechanistic
pathways
catalyst
developments
discussed,
including
tailored
ligand
design,
heterometallic
cooperativity,
bicomponent
systems
careful
selection
conditions,
all
which
can
be
used
fine-tune
metal
Lewis
acidity
metal-alkyl
bond
polarity.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(41), P. 19115 - 19126
Published: Oct. 4, 2022
The
development
of
catalysts
for
environmentally
benign
organic
transformations
is
a
very
active
area
research.
Most
the
reported
so
far
are
based
on
transition-metal
complexes.
In
recent
years,
examples
catalysis
by
main-group
metal
compounds
have
been
reported.
Herein,
we
report
series
magnesium
pincer
complexes,
which
were
characterized
NMR
and
X-ray
single-crystal
diffraction.
Reversible
activation
H2
via
aromatization/dearomatization
metal–ligand
cooperation
was
studied.
Utilizing
obtained
unprecedented
homogeneous
catalyzed
semihydrogenation
alkynes
hydrogenation
alkenes
demonstrated
under
base-free
conditions,
affording
Z-alkenes
alkanes
as
products,
respectively,
with
excellent
yields
selectivities.
Control
experiments
DFT
studies
reveal
involvement
in
reactions.
This
study
not
only
provides
new
approach
but
also
offers
opportunities
other
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(16), P. 9118 - 9128
Published: April 4, 2023
The
novel
selenoviologen-based
tetracationic
cyclophanes
(green
boxes
3
and
5)
with
rigid
electron-deficient
cavities
are
synthesized
via
SN2
reactions
in
two
steps.
green
exhibit
good
redox
properties,
narrow
energy
gaps,
strong
absorption
the
visible
range
(370-470
nm),
especially
for
box
5
containing
selenoviologen
(SeV2+)
units.
Meanwhile,
femtosecond
transient
(fs-TA)
reveals
that
have
a
stabilized
dicationic
biradical,
high
efficiency
of
intramolecular
charge
transfer
(ICT),
long-lived
separation
state
due
to
formation
cyclophane
structure.
Based
on
excellent
photophysical
applied
electrochromic
devices
(ECDs)
visible-light-driven
hydrogen
production
H2
generation
rate
(34
μmol/h),
turnover
number
(203),
apparent
quantum
yield
(5.33
×
10-2).
In
addition,
host-guest
recognitions
demonstrated
between
electron-rich
guests
(e.g.,
G1:1-naphthol
G2:platinum(II)-tethered
naphthalene)
MeCN
through
C-H···π
π···π
interactions.
As
one-component
system,
complexes
box⊃G2
successfully
visible-light
photocatalytic
electron
(IET)
platinum(II)
G2
SeV2+
box,
which
provides
simplified
system
solar
conversion.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(8), P. 3621 - 3628
Published: Jan. 1, 2024
The
bis-guanidinate
supported
zinc
hydride
(
I
)
catalyzes
the
hydroboration
of
a
series
esters,
yielding
alkoxyboronate
esters
as
products.
Based
on
stoichiometric
experiments,
plausible
insertion/sigmabond
metathesis
mechanism
has
been
proposed.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
62(8)
Published: Oct. 27, 2022
Hydrogen
isotope
exchange
(HIE)
represents
one
of
the
most
attractive
labeling
methods
to
synthesize
deuterium-
and
tritium-labeled
compounds.
Catalytic
HIE
that
enable
site-selective
C-H
bond
activation
with
gaseous
isotopes
D2
T2
are
vital
importance,
in
particular
for
high-specific-activity
tritiation
pharmaceuticals.
As
part
our
interest
exploring
s-block
metals
catalytic
transformations,
we
found
CsN(SiMe3
)2
be
an
efficient
catalyst
selective
benzylic
bonds
gas.
The
reaction
proceeds
through
a
kinetic
deprotonative
equilibrium
establishes
pathway
between
By
virtue
multiple
high
activity
(isotope
enrichment
up
99
%),
simple
cesium
amide
provided
very
powerful
practically
convenient
protocol
synthesis
highly
deuterated
compounds
Chemistry - A European Journal,
Journal Year:
2022,
Volume and Issue:
28(63)
Published: Aug. 9, 2022
Aluminylenes
(R-Al)
are
aluminium
analogs
of
carbenes.
In
contrast
to
isolable
carbenes,
aluminylenes
extremely
rare
species.
the
past
years,
pioneered
by
Schnöckel,
Roesky
and
Power,
a
few
free
their
complexes
have
been
reported.
Such
compounds
atom
in
oxidation
state
+I,
which
contrasts
with
classical
organoaluminium
derivatives
that
contain
element
+III
state.
Aluminylenes,
either
or
coordination
sphere
Lewis
base,
capable
coordinating
transition
metals
activating
inert
chemical
bonds.
Free
emerging
as
potent
synthetic
platforms
for
unusual
