Reversible Switching and Recycling of Thermoresponsive 1,2,4-Triazolium-Based Poly(ionic liquid) Catalysts for Porous Organic Cage Synthesis in Organic Media
ACS Macro Letters,
Год журнала:
2025,
Номер
unknown, С. 458 - 463
Опубликована: Март 23, 2025
Homogeneous
catalysts
of
high
activity
and
selectivity
often
face
challenges
in
the
separation
from
feedstocks
products
after
reactions.
In
contrast,
heterogeneous
are
easier
to
separate,
usually
at
cost
compromised
catalytic
performance.
By
designing
capable
switching
between
homogeneous
states
for
catalysis
separation,
merits
both
could
be
synergistically
combined.
this
study,
a
thermoresponsive
1,2,4-triazolium-based
poly(ionic
liquid)
(PIL)
was
applied
as
temperature-switchable
organocatalyst
controlled
synthesis
porous
organic
cages
methanol.
Variation
reaction
temperature
induced
phase
transition
PIL,
causing
polymer
chains
dissolve
or
collapse
methanol,
thereby
exposing
shielding
catalytically
active
sites
proceed
retard
reaction,
respectively.
To
note,
sufficiently
low
temperature,
PIL
catalyst
precipitated
out
its
methanol
solution
separated
by
centrifugation
filtration
reuse,
similar
common
catalysts.
Such
switchable
recyclable
properties
polymeric
will
inspire
design
efficient
adaptable
hybrid
nanoreactors
liquid
media.
Язык: Английский
Controlled Assembly of [3+6] and [4+8] Porous Organic Cages for Rapid Removal of Iodide from Water
Chinese Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 30, 2025
Comprehensive
Summary
Research
into
controlling
the
self‐assembly
of
discrete
porous
organic
cages
(POCs)
with
specific
geometries
and
functions
is
difficult,
but
important
for
understanding
their
structure‐property
relationship,
as
well
behavior
in
supramolecular
chemistry.
Herein,
we
report
two
POCs
based
on
same
tetraformyl‐functionalized
calix[4]resorcinarene
(C4RACHO)
2,4‐diaminophenol
dihydrochloride
(DAP)
building
blocks,
including
a
[3+6]
triangular
prism
(
CPOC‐201‐OH
)
[4+8]
square
CPOC‐401‐OH
),
determined
by
single
X‐ray
crystallographic
analysis.
Both
exhibit
large
intrinsic
cavities,
rich
oxygen
sites,
high
porosity
Brunauer–Emmett–Teller
(BET)
surface
areas
up
to
966
m
2
·g
–1
.
Owing
such
virtues,
both
can
effectively
capture
iodine
aqueous
media
removal
rate
>
99%
within
min.
Язык: Английский
Disulfide-Functionalized Porous Organic Cage for Efficient Adsorptive Removal of Hg(II) from Aqueous Solutions
Crystal Growth & Design,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 22, 2025
Язык: Английский
A V-Shaped Small Molecule-Based Crystalline Nonporous Supramolecular Organic Framework for Capturing Benzene-Based Contaminants
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
A
crystalline
nonporous
supramolecular
organic
framework
was
constructed
for
the
capture
of
benzene-based
pollutants.
Язык: Английский