Aromaticity transfer in an annulated 1,4,2-diazaborole: Facile access to Cs symmetric 1,4,2,5-diazadiborinines
Vignesh Pattathil,
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Conor Pranckevicius
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Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(60), P. 7705 - 7708
Published: Jan. 1, 2024
A
tricyclic
annulated
1,4,2-diazaborole
is
readily
accessed
Language: Английский
Mono(Lewis Base)‐Stabilized Gallium Iodide: An Unexplored Class of Promising Ligands
Sahtaz Ahmed,
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Himashri Das,
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Daniel González‐Pinardo
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et al.
Chemistry - A European Journal,
Journal Year:
2023,
Volume and Issue:
30(13)
Published: Dec. 18, 2023
Abstract
Quantum‐chemical
(DFT)
calculations
on
hitherto
unknown
base(carbene)‐stabilized
gallium
monoiodides
(LB→GaI)
suggest
that
these
systems
feature
one
lone
pair
of
electrons
and
a
formally
vacant
p‐orbital
–
both
centered
at
the
central
atom
exhibit
metallomimetic
behavior.
The
calculated
reaction
free
energies
as
well
bond
dissociation
LB→GaI
are
capable
forming
stable
donor‐acceptor
complexes
with
group
13
trichlorides.
Examination
ligand
exchange
reactions
iron
nickel
indicates
their
potential
use
ligands
in
transition
metal
chemistry.
In
addition,
it
is
found
title
compounds
also
able
to
activate
various
enthalpically
robust
bonds.
Further,
detailed
mechanistic
investigation
small
molecule
activation
processes
reveals
non‐innocent
behavior
carbene
(base)
moiety
attached
GaI
fragment,
thereby
indicating
cooperative
nature
processes.
energy
decomposition
analysis
(EDA)
strain
model
(ASM)
reactivity
were
employed
quantitatively
understand
rationalize
different
Language: Английский
Activation of σ‐Bonds by Group 13/Ylide‐Based Ambiphiles: Understanding and Design
ChemistryEurope,
Journal Year:
2024,
Volume and Issue:
2(3-4)
Published: May 1, 2024
Abstract
The
factors
controlling
the
activation
of
σ‐bonds
promoted
by
hidden
Frustrated
Lewis
Pairs
have
been
computationally
explored
using
quantum
chemical
tools.
To
this
end,
influence
both
nature
group
13
element
acting
as
acid
well
cooperative
action
antagonists
on
bond
was
quantitatively
analyzed
means
strain
model
reactivity
in
combination
with
energy
decomposition
analysis
method.
It
is
found
that
while
polar
E
X
−H
bonds
(E
15
=group
element;
16
element)
feasible,
analogous
processes
involving
non‐polar
14
(CH
4
,
SiH
or
H
2
)
proceed
much
higher
barriers.
Nevertheless,
these
processes,
and
particular
dihydrogen
activation,
can
be
realizable
(i.
e.
proceeding
a
feasible
barrier)
through
rational
design.
Language: Английский