Air and Water Stable Bicyclic (alkyl)(amino)Carbene Stabilized Phosphenium Cation: Reactivity and Selective Fluoride Ion Affinity
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(62)
Published: Aug. 15, 2024
Abstract
The
synthesis
and
reactivity
of
an
air
water
stable
Bicyclic
(alkyl)(amino)carbene
(BICAAC)
stabilized
phosphenium
cation
(1)
is
reported.
Air
are
rare
in
the
literature.
Compound
1
obtained
by
reaction
BICAAC
with
Ph
2
PCl
THF
followed
anion
exchange
LiOTf.
reduction
oxidation
yielded
corresponding
α‐radical
phosphine
species
(2)
oxide
(3)
respectively.
All
compounds
well
characterized
single
crystal
X‐ray
diffraction
studies.
Lewis
acidity
3
determined
conducting
fluoride
ion
affinity
experiments
using
UV‐Vis
spectrophotometry
multinuclei
NMR
spectroscopy.
Compounds
exhibited
selective
binding
to
but
did
not
interact
other
halides
(Cl
−
Br
).
Quantum
chemical
calculations
were
performed
understand
structure
nature
bonding
interactions
these
compounds,
as
comprehend
specific
over
halide
ions.
Language: Английский
Diborane, Diborene and M(I)‐η2‐Diborene Complexes Stabilized by Bicyclic (Alkyl)(Amino)Carbene (M = Cu and Ag)
European Journal of Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
27(32)
Published: March 23, 2024
Abstract
BICAAC
(bicyclic
(alkyl)(amino)carbene)
as
ambiphilic
carbene
has
been
utilized
to
prepare
stable
neutral
tetrahydrodiborane
[BICAAC
(H
2
)B−B(H
)
BICAAC]
and
dihydrodiborene
[BICAAC→(H)B=B(H)
compounds.
The
Lewis
base
stabilized
is
isoelectronic
isolobal
conventional
olefins
therefore
offers
the
possibility
explore
formation
of
π
‐complexes
with
transition
metals.
Reaction
diborene
coinage
metal
salts
(CuCl,
AgBr
CuI)
leads
‐diborene
complexes
via
η
side‐on
coordination.
These
are
first
examples
complexes.
Interestingly,
coordination
two
CuCl
units
observed
for
time
a
considerable
lengthening
>B=B<
B
C
bonds
manifesting
key
role
combined
small
steric
requirements
hydride
substituents
in
stabilizing
these
energy
decomposition
analysis
(EDA)
calculations
reveal
interaction
between
Cu(I)/Ag(I)
mainly
electrostatic
nature.
Language: Английский
Bicyclic (Alkyl)(Amino)Carbenes (BICAACs): Synthesis, Characteristics, and Applications
Ankita Sharma,
No information about this author
Unnikrishnan Nair K,
No information about this author
Subrata Kundu
No information about this author
et al.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
covers
the
synthesis,
characterization,
and
reactivity
of
bicyclic(alkyl)(amino)carbenes
(BICAACs)
outlines
diverse
applications
BICAACs
in
organometallic
chemistry,
metal-free
catalysis,
main-group
chemistry.
Language: Английский
Bicyclic (alkyl)(amino)carbene (BICAAC)-supported phosphinidenes
Dalton Transactions,
Journal Year:
2023,
Volume and Issue:
52(45), P. 16680 - 16687
Published: Jan. 1, 2023
Herein,
the
synthesis
and
characterization
of
bicyclic
(alkyl)(amino)carbene
(BICAAC)-stabilized
phosphinidenes
(1-4)
are
reported.
Compounds
1-3
were
obtained
by
reacting
trihalophosphine
[PX3,
X
=
Cl
(1),
Br
(2),
I
(3)]
with
BICAAC
in
THF.
A
BICAAC-stabilized
bis-phosphinidene
(4)
was
from
reduction
compound
2.
All
four
compounds
characterized
X-ray
crystallography
heteronuclear
NMR
spectroscopy.
Theoretical
calculations
indicated
predominant
C(carbene)P
double
bond
characteristic
1-4.
Language: Английский