A focus on phosphinophosphination of apolar bonds by a structurally constrained P–P bonded system
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
article
highlights
recent
work
by
Greb
et
al.
on
the
phosphinophosphination
of
alkenes,
alkynes,
and
carbonyls,
with
a
focus
how
polarity
P–P
bond
controls
scope
resulting
reactivity.
Язык: Английский
Meta-Xylene-Based Diamines with Protected Benzyl Sites: Potential NCN Pincer Ligands with Tunable Steric Profiles
Molecules,
Год журнала:
2025,
Номер
30(6), С. 1331 - 1331
Опубликована: Март 16, 2025
Bulky
NCN
aryl-diamides
featuring
methyl
groups
in
the
benzyl
positions
were
synthesized
with
aim
of
creating
a
new
class
meta-xylene-based
trianionic
pincer
ligands
where
common
decomposition
pathway
metal
complexes
via
C-H
activation
is
prevented.
Sterically
demanding
substituents
on
furthermore
provide
steric
protection
centre
and
can
help
prevent
dimerization
complexes.
While
double
deprotonation
formation
dilithium
salt
was
straightforward,
difficulties
encountered
when
attempting
to
deprotonate
ipso-CH
proton
central
aryl
ring
yield
ligands.
This
stands
contrast
related
without
benzylic
positions.
Experimental
theoretical
investigations
led
conclusion
that
challenges
third
are
likely
caused
by
an
interplay
increased
electron
density
at
nitrogen
atoms
hindrance.
Both
effects
originate
introduction
positions,
which
make
targeted
less
accessible.
These
results
further
insight
into
impact
both
electronic
properties
ligands,
may
find
utility
coordination
chemistry
applications
metalation
be
achieved
direct
rather
than
requiring
triple
deprotonation.
Язык: Английский
Geometrically Constrained Bismuth Compounds
Structure and bonding,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
PnictogenIII Dications Supported by BZIMPY Ligands
Chemistry - A European Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 22, 2024
Abstract
Two
homologous
series
of
pnictogen(III)
dications,
stabilized
by
2,6‐bis(benzimidazole‐2‐yl)pyridine
ligands
have
been
prepared.
Both
contain
Pn
III
‐X
moieties
(Pn
=
P,
As,
Sb,
Bi;
X
Cl
or
Ph)
and
fully
characterized
using
spectroscopic
methods
including
X‐ray
crystallography.
The
Lewis
acidity
these
compounds
has
also
probed
computational
methods;
the
results
suggest
that
dictations
are
strong
acids,
with
PnCl
2+
being
more
acidic
than
PnPh
compounds,
increasing
from
P
to
Bi,
in
both
series.
PhP
‐containing
compound
was
found
be
a
versatile
transfer
reagent,
leading
new
synthetic
routes
for
various
PhP‐containing
compounds.
redox
chemistry
all
cyclic
voltammetry
chemical
reductions.
In
some
cases
resulting
I
could
trapped
diazabutadienes.
Язык: Английский