Anhydrous Solid-State Proton Conduction in Crystalline MOFs, COFs, HOFs, and POMs
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Strategic
design
of
solid-state
proton-conducting
electrolytes
for
application
in
anhydrous
proton-exchange
membrane
fuel
cells
(PEMFCs)
has
gained
burgeoning
interest
due
to
a
spectrum
advantageous
features,
including
higher
CO
tolerance
and
ease
the
water
management
systems.
Toward
this
direction,
crystalline
materials
like
metal-organic
frameworks
(MOFs),
covalent
organic
(COFs),
hydrogen-bonded
(HOFs),
polyoxometalates
(POMs)
are
emerging
PEM
materials,
offering
strategic
structural
engineering
through
crystallography,
thus
enabling
ultrahigh
proton
conductivity
up
10-2-10-1
S/cm.
This
Perspective
highlights
significant
progress
achieved
far
with
such
platforms
domain
conduction
across
wide
temperature
window
(sub-zero
above
100
°C).
Based
on
their
backgrounds,
these
categorized
into
four
classes
(viz.
MOFs,
COFs,
HOFs,
POMs)
detailed
evolutionary
timeline
since
emergence
early
2009.
Insightful
discussions
key
focus
strategies
undertaken
attain
along
implementation
cell
technology
electrode
assembly
presented.
A
section
"Critical
Analysis
Future
Prospects"
provides
decisive
viewpoints
those
overlooked
issues
future
endorsement
(e.g.,
performance
assessment
analysis
test
stand)
further
development
while
comparing
them
other
from
both
academic
industrial
perspectives.
Язык: Английский
Catalytic Efficacy of a 2D Chemically Robust MOF for the Synthesis of Bioactive Diindolylmethane (DIM)‐Based Drug Molecules
Small,
Год журнала:
2025,
Номер
21(11)
Опубликована: Фев. 14, 2025
Abstract
Synthesis
of
biologically
and
pharmaceutically
important
drugs
via
organic
transformations
in
one
pot
under
mild
conditions
with
efficient
catalysts
is
significant
interest
terms
practical
utility.
Though
metal‐organic
frameworks
(MOFs)
prove
their
efficiencies
various
catalytic
reactions,
synthesis
drug
molecules
employing
MOF
still
its
early
stage,
fact,
restricted
to
only
1,4‐Dihydropyridines
(1,4‐DHP)
based
synthesis.
Although
the
Friedel–Crafts
alkylation
(FCA)
reaction
oldest
reactions
a
impact
on
synthesis,
surprisingly
this
triggered
by
catalyst
largely
unexplored.
Herein,
we
report
robust
framework,
MO
F
:
IITKGP‐55
,
synthesized
solely
aqueous
medium
which
exhibits
superior
for
one‐pot
FCA
well
tolerance
substrate
scopes.
Most
importantly,
reaction,
three
bioactive
diindolylmethane
(DIM)
core
are
first
time,
was
never
realized
any
sort
heterogeneous
catalysts.
Moreover,
Arundine
crystallized
an
in‐depth
crystallographic
analysis
performed.
The
excellent
framework
robustness
highlight
potentiality
developed
unwrap
new
avenue
molecule
Язык: Английский
A chemically robust SIFSIX MOF as electrocatalyst in alkaline hydrogen evolution reaction (HER)
International Journal of Hydrogen Energy,
Год журнала:
2025,
Номер
117, С. 135 - 145
Опубликована: Март 15, 2025
Язык: Английский
Custom‐Designed Robust MOF‐Catalyst for Scalable 1,4‐DHP Drugs With H–Bonding‐Mediated Tandem Hantzsch Condensation and Shape‐Reliant Friedel‐Crafts Alkylation
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Abstract
Flanked
–NH
2
functionality,
polar
carbonyl
moiety
and
intrinsically
unsaturated
[Zn
(CO
)
(ATz)
4
]
center‐decked
micropores
in
an
ultra‐robust
metal‐organic
framework
(MOF)
are
reported,
assembled
from
bent
dicarboxylate
triazole
ligand.
The
MOF
serves
as
one‐of‐a‐kind
tandem
Hantzsch
condensation
catalyst
to
yield
a
multitude
of
1,4‐dihydropyridines
(1,4‐DHPs)
with
low
loading,
short
reaction
duration
at
moderate
temperature.
Importantly,
the
is
used
synthesis
six
1,4‐DHP‐based
therapeutic
molecules
>95%
conversion,
which
characterized
purest
form
via
X‐ray
crystallography
besides
other
spectroscopic
analyses.
Apart
gram‐scale
production
ethidine
molecule
40
°C
just
30
min,
oxodipine
drug
first‐time
synthesized
by
any
framework‐based
catalyst.
This
mixed‐ligand
further
demonstrates
highly
recyclable
Friedel–Crafts
(FC)
alkylation
indole
β‐nitrostyrene
covers
twenty
electronically
diverse
substrates
under
relatively
green
conditions.
Strikingly,
larger‐sized
can't
diffuse
inside
exemplifies
rarest
shape‐reliant
C‒C
coupling
reaction.
Contrary
conventional
Lewis‐acid
activation,
maximum
contribution
hydrogen‐bonding
site
promotes
both
multi‐component
FC
reactions,
comprehensively
supported
control
experiments,
analyte‐induced
emission
articulation,
inferior
activity
task‐specific
site‐truncated
isoskeletal
MOF,
density
functional
theory
results.
work
provides
major
advancement
on
unconventional
heterogeneous
catalysis
produce
valuable
products.
Язык: Английский
Stoichiometry-Regulated Synthesis of Three Adenine-Based Coordination Polymers for Catalytic Excellence through the Synergistic Amalgamation of Coordinative Unsaturation and Lewis Basic Sites
Inorganic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 22, 2024
Nucleobase
adenine
is
a
promising
candidate
for
synthesizing
fascinating
coordination
polymers
(CPs)
due
to
the
presence
of
five
potential
metal-ion
binding
centers.
In
recent
years,
CPs
have
emerged
as
Lewis
acid-base
centers
containing
heterogeneous
catalysts
wide
range
organic
transformations.
However,
crucial
role
stoichiometric
regulations
starting
materials
and
their
consequential
impact
on
catalytic
performance
are
rarely
studied.
Herein,
we
synthesized
three
(Ad)-based
cadmium
with
5-nitro
isophthalic
acid
(H
Язык: Английский