JACS Au,
Journal Year:
2025,
Volume and Issue:
5(2), P. 426 - 447
Published: Jan. 29, 2025
Many
important
synthetic-oriented
works
have
proposed
excited
organic
radicals
as
photoactive
species,
yet
mechanistic
studies
raised
doubts
about
whether
they
can
truly
function
photocatalysts.
This
skepticism
originates
from
the
formation
of
(photo)redox-active
degradation
products
and
picosecond
decay
electronically
radicals,
which
is
considered
too
short
for
diffusion-based
photoinduced
electron
transfer
reactions.
From
this
perspective,
we
analyze
synthetic
transformations
where
been
photocatalysts,
comparing
their
theoretical
maximum
state
potentials
with
required
observed
photocatalytic
reactivity.
We
summarize
structurally
similar
photocatalysts
indicating
different
reaction
pathways
some
catalytic
systems,
addressing
cases
radical
exceed
Additionally,
perform
a
kinetic
analysis
to
explain
in
on
subpicosecond
time
scales.
further
rationalize
potential
anti-Kasha
reactivity
higher
states
femtosecond
lifetimes,
highlighting
how
future
photocatalysis
advancements
could
unlock
new
photochemical
pathways.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(9), P. 5421 - 5469
Published: April 25, 2024
Utilization
of
renewable
energies
for
catalytically
generating
value-added
chemicals
is
highly
desirable
in
this
era
rising
energy
demands
and
climate
change
impacts.
Artificial
photosynthetic
systems
or
photocatalysts
utilize
light
to
convert
abundant
CO2,
H2O,
O2
fuels,
such
as
carbohydrates
hydrogen,
thus
converting
storable
chemical
resources.
The
emergence
intense
X-ray
pulses
from
synchrotrons,
ultrafast
free
electron
lasers,
table-top
laser-driven
sources
over
the
past
decades
opens
new
frontiers
deciphering
photoinduced
catalytic
reaction
mechanisms
on
multiple
temporal
spatial
scales.
Operando
spectroscopic
methods
offer
a
set
electronic
transitions
probing
oxidation
states,
coordinating
geometry,
spin
states
metal
center
photosensitizers
with
unprecedented
time
resolution.
scattering
enable
previously
elusive
steps
be
characterized
different
length
scales
methodological
progress
their
application
examples
collected
review
will
glimpse
into
accomplishments
current
state
both
natural
synthetic
systems.
Looking
forward,
there
are
still
many
challenges
opportunities
at
frontier
research
that
require
further
advancement
characterization
techniques.
Inorganic Chemistry Frontiers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
article
focuses
on
current
achievements
and
identifies
future
research
directions
by
designing
biomimetic
catalytic
systems
for
CO
2
reduction
to
formate
using
NAD(P)H.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(21)
Published: March 20, 2024
Abstract
The
use
of
a
dual
resin
for
photobiocatalysis,
encompassing
both
photocatalyst
and
an
immobilized
enzyme,
brings
several
challenges,
including
effective
immobilization,
maintaining
enzyme
activity
ensuring
sufficient
light
penetration.
However,
the
benefits,
such
as
integrated
processes,
reusability,
easier
product
separation,
potential
scalability,
can
outweigh
these
making
systems
promising
efficient
sustainable
photobiocatalytic
applications.
In
this
study,
we
employed
photosensitizer‐containing
porous
emulsion‐templated
polymer
functional
support
that
is
used
to
covalently
anchor
chloroperoxidase
from
Curvularia
inaequalis
(CiVCPO).
We
demonstrate
versatility
heterogeneous
material,
which
enables
bromination
four
aromatic
substrates,
rutin—a
natural
occurring
flavonol—under
blue
(456
nm)
irradiation
continuous
flow
conditions.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 20, 2024
Photoredox
catalysis
is
a
powerful
tool
to
access
challenging
and
diverse
syntheses.
Absorption
of
visible
light
forms
the
excited
state
catalyst
(*PC)
but
photons
may
be
wasted
if
one
several
unproductive
pathways
occur.
Facile
dissociation
charge-separated
encounter
complex
[PC
Bulletin of the Chemical Society of Japan,
Journal Year:
2023,
Volume and Issue:
96(11), P. 1206 - 1208
Published: Sept. 13, 2023
Abstract
The
effect
of
ionic
substituents
(4-sulfonatophenyl,
4-carboxyphenyl,
4-methylpyridyl,
and
4-N,N,N-trimethylaminophenyl-groups)
water-soluble
zinc
porphyrin
(ZnP)
on
the
visible
light-driven
NADH
regeneration
by
a
system
triethanolamine,
ZnP,
rhodium
complex
[Cp*Rh(bpy)(H2O)]2+
(Cp*
=
pentamethylcyclopentadienyl,
bpy
2,2′-bipyridyl)
was
studied
to
provide
significant
guidance
for
hybridization
with
wide
range
oxidoreductases.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(21)
Published: March 20, 2024
Abstract
The
use
of
a
dual
resin
for
photobiocatalysis,
encompassing
both
photocatalyst
and
an
immobilized
enzyme,
brings
several
challenges,
including
effective
immobilization,
maintaining
enzyme
activity
ensuring
sufficient
light
penetration.
However,
the
benefits,
such
as
integrated
processes,
reusability,
easier
product
separation,
potential
scalability,
can
outweigh
these
making
systems
promising
efficient
sustainable
photobiocatalytic
applications.
In
this
study,
we
employed
photosensitizer‐containing
porous
emulsion‐templated
polymer
functional
support
that
is
used
to
covalently
anchor
chloroperoxidase
from
Curvularia
inaequalis
(CiVCPO).
We
demonstrate
versatility
heterogeneous
material,
which
enables
bromination
four
aromatic
substrates,
rutin—a
natural
occurring
flavonol—under
blue
(456
nm)
irradiation
continuous
flow
conditions.
