Chemical Synthesis,
Journal Year:
2024,
Volume and Issue:
4(4)
Published: Oct. 14, 2024
Compared
to
bulk
solvents,
reactions
in
the
confined
spaces
of
supramolecular
self-assemblies
feature
rate
acceleration,
high
efficiency
and
substrate
selectivity.
These
advantages
lead
efficient
catalytic
excellent
selectivity
enantioselective
photochemical
transformations.
During
last
few
years,
photocatalysis
has
developed
into
one
most
powerful
strategies
construct
enantioenriched
chiral
compounds.
In
this
review,
recent
advances
taking
place
within
assemblies
are
summarized,
with
an
emphasis
on
specific
modes
chemical
Organization
data
follows
a
subdivision
according
host
reaction
type.
At
last,
current
limitations
future
research
orientation
field
discussed.
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(63)
Published: Aug. 17, 2024
Abstract
Accurately
synthesizing
coordination‐driven
metal‐organic
cages
with
customized
shape
and
cavity
remains
a
great
challenge
for
chemists.
In
this
work,
bottom‐up
step‐wise
self‐assembly
approach
was
put
forward.
Employing
strategy,
three
terpyridyl
heterometallic‐organic
truncated
tetrahedral
different
sizes
were
precisely
synthesized.
Firstly,
the
coordination
of
tripodal
organic
ligands
Ru
2+
afforded
dendritic
L1‐L3
.
Then
building
blocks
complexed
Fe
shrunk
to
form
desired
(
C1‐C3)
These
discrete
supramolecular
fully
characterized
displayed
large
open
cavities
varied
from
7205
Å
3
9384
Notably,
these
could
not
be
directly
constructed
by
single‐step
assembly
process
using
initial
or
dimeric
ligands,
indicative
irreplaceability
strategy
size‐customized
architectures.
This
work
paves
new
way
constructing
well‐defined
cavities.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(36)
Published: June 14, 2024
Abstract
Polyradical
cages
are
of
great
interest
because
they
show
very
fascinating
physical
and
chemical
properties,
but
many
challenges
remain,
especially
for
their
synthesis
characterization.
Herein,
we
present
the
a
polyradical
cation
cage
1
4
.
+
through
post‐synthetic
oxidation
redox‐active
phenothiazine‐based
Pd
2
L
‐type
coordination
It′s
worth
noting
that
exhibits
excellent
reversible
electrochemical
redox
activity
due
to
introduction
bulky
3,5‐di‐
tert
‐butyl‐4‐methoxyphenyl
substituent.
The
generation
is
investigated
by
in
situ
UV/Vis‐NIR
EPR
spectroelectrochemistry.
Meanwhile,
can
also
produce
which
be
reversibly
reduced
back
original
,
process
monitored
NMR
spectroscopies.
Eventually,
succeed
isolation
single
crystal
X‐ray
diffraction
analysis
whose
electronic
structure
conformation
distinct
magnetic
susceptibility
measurements
indicate
predominantly
antiferromagnetic
interactions
between
four
phenothiazine
radical
cations
We
believe
our
study
including
facile
methodology
spectroelectrochemistry
will
shed
some
light
on
characterization
novel
systems,
opening
more
perspectives
developing
functional
supramolecular
cages.
Crystals,
Journal Year:
2024,
Volume and Issue:
14(10), P. 873 - 873
Published: Oct. 2, 2024
The
crystalline
sponge
method
has
proven
invaluable
in
the
preparation
and
analysis
of
supramolecular
host/guest
complexes
if
host
can
be
obtained
a
suitable
form,
allowing
guest
binding
modes
inside
cavities
which
inform
other
studies
into
processes
such
as
catalysis.
Here,
we
report
structures
set
ten
using
an
octanuclear
coordination
cage
with
range
small-molecule
neutral
organic
guests
including
four
aromatic
aldehydes
ketones,
three
cyclic
lactams,
epoxides.
In
all
cases,
cavity-bound
are
anchored
by
collection
CH•••O
hydrogen-bonding
interactions
between
O
atom
on
convergent
CH
protons
at
pocket
interior
surface.
Depending
size
presence
solvent
molecules
additional
guests,
there
may
one
or
two
small
forming
π-stacked
pairs.
Some
(the
lactams)
participate
NH•••F
H-bonding
surface-bound
fluoroborate
anions,
indicate
type
anion/guest
thought
to
responsible
for
solution-phase
catalytic
reactions
bound
guests.
Chemical Synthesis,
Journal Year:
2024,
Volume and Issue:
4(4)
Published: Oct. 14, 2024
Compared
to
bulk
solvents,
reactions
in
the
confined
spaces
of
supramolecular
self-assemblies
feature
rate
acceleration,
high
efficiency
and
substrate
selectivity.
These
advantages
lead
efficient
catalytic
excellent
selectivity
enantioselective
photochemical
transformations.
During
last
few
years,
photocatalysis
has
developed
into
one
most
powerful
strategies
construct
enantioenriched
chiral
compounds.
In
this
review,
recent
advances
taking
place
within
assemblies
are
summarized,
with
an
emphasis
on
specific
modes
chemical
Organization
data
follows
a
subdivision
according
host
reaction
type.
At
last,
current
limitations
future
research
orientation
field
discussed.
