A Lead(II) Substituted Triplet Carbene
Fabian Dankert,
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Julian Messelberger,
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Ugo Authesserre
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et al.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(43), P. 29630 - 29636
Published: Oct. 18, 2024
Reaction
of
the
pincer-type
ligand
L
Language: Английский
Exploring Singlet Carbyne Anions and Related Low-Valent Carbon Species Utilizing a Cyclic Phosphino Substituent
Accounts of Chemical Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
ConspectusThe
advancement
of
synthetic
methodologies
is
fundamentally
driven
by
a
deeper
understanding
the
structure–reactivity
relationships
reactive
key
intermediates.
Carbyne
anions
are
compounds
featuring
monovalent
anionic
carbon
possessing
four
nonbonding
valence
electrons,
which
were
historically
confined
to
theoretical
constructs
or
observed
solely
within
environment
gas-phase
studies.
These
species
possess
potential
for
applications
across
diverse
domains
chemistry
and
ancillary
fields.
This
Account
details
our
focused
efforts
isolate
singlet
carbyne
explores
isolation
range
related
low-valent
species.
Our
achievements
include
synthesis
characterization,
under
normal
laboratory
conditions,
gold-substituted
free
carbenes,
copper
anion
complexes,
ketenyl
anions,
keteniminyl
stannyne.
have
been
accomplished
using
bulky
cyclic
phosphino
substituent,
effectively
stabilizes
these
species.Our
journey
commenced
with
phosphinocarbenes,
characterized
robust
carbon–gold
covalent
single
bond,
progressed
complexes
carbon–copper
ionic
bond.
was
realized
through
synergistic
combination
group
closed-shell
electron-rich
late
transition
metal.
The
robustness
bond
contrasts
markedly
susceptibility
imparts
behavior
characteristic
phosphinocarbyne
coordination
sphere
copper,
thereby
enabling
unique
transfer
reactions.
tri-active
ambiphilic
nature
in
enables
formation
three
chemical
bonds
at
center
one-pot
Subsequent
investigations
unveiled
ligand
exchange
reactions
site,
leading
generation
stable
crystalline
anions.
emerge
as
potent
synthons
capable
producing
array
derivatives.
In
addition,
we
isolated
phosphinostannyne,
rare
carbon–tin
multiple
two
adjacent
centers.
Collectively,
demonstrated
remarkable
propensity
engaging
spectrum
reactions,
underscoring
their
versatility
confirming
utility
synthesizing
uncharted,
main
species.The
insights
derived
from
research
contribute
broader
may
provide
platform
future
innovations
chemistry,
catalytic
processes,
novel
materials.
As
continue
explore
develop
this
area
study,
hope
that
might
follow
footsteps
potentially
finding
various
fields
future.
Language: Английский
(Phosphino)(stannyl)carbene
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(72), P. 9793 - 9796
Published: Jan. 1, 2024
The
synthesis
of
a
(phosphino)(stannyl)carbene
is
documented.
combination
phosphino
and
stannyl
substituents
imparts
highly
ambiphilic
nature
to
this
carbene,
enabling
reactions
with
cyanide,
isocyanide,
carbon
monoxide.
This
leads
rare
stannylketenimines
stannylketene.
Language: Английский