Discovery of molybdenum based nitrogen fixation catalysts with genetic algorithms
Chemical Science,
Год журнала:
2024,
Номер
15(27), С. 10638 - 10650
Опубликована: Янв. 1, 2024
Using
genetic
algorithms
and
semiempirical
quantum
mechanical
methods
for
discovery
of
nitrogen
fixation
catalysts.
Язык: Английский
OM-Diff: inverse-design of organometallic catalysts with guided equivariant denoising diffusion
Digital Discovery,
Год журнала:
2024,
Номер
3(9), С. 1793 - 1811
Опубликована: Янв. 1, 2024
This
work
presents
OM-Diff,
an
inverse-design
framework
based
on
a
diffusion
generative
model
for
in
silico
design
of
organometallic
complexes.
Язык: Английский
OM-DIFF: INVERSE-DESIGN OF ORGANOMETALLIC CATALYSTS WITH GUIDED EQUIVARIANT DENOISING DIFFUSION
Опубликована: Март 28, 2024
Organometallic
complexes
are
ubiquitous
in
homogeneous
catalysis
and
other
technological
applications.
Optimization
of
such
for
specific
applications
is
challenging
due
to
the
large
variety
possible
metal-ligand
combinations
ligand-ligand
interactions.
Here
we
present
OM-Diff,
an
inverse
design
framework
based
on
a
diffusion
generative
model
in-silico
from
scratch.
Given
importance
spatial
structure
catalyst,
directly
operates
all-atom
(including
hydrogen)
representations
3D
space.
To
handle
symmetries
inherent
that
data
representation,
OM-Diff
combines
equivariant
property
predictor
drive
sampling
at
inference
time.
The
can
conditionally
generate
novel
ligands
beyond
those
training
dataset.
We
demonstrate
potential
proposed
approach
by
designing
catalysts
family
cross-coupling
reactions,
validating
selection
compounds
with
DFT
calculations.
Язык: Английский
Deep Generative Model for the Dual-Objective Inverse Design of Metal Complexes
Опубликована: Май 29, 2024
Deep
generative
models
yielding
transition
metal
complexes
(TMCs)
remain
scarce
despite
the
key
role
of
these
compounds
in
industrial
catalytic
processes,
anticancer
therapies,
and
energy
transformations.
Compared
to
drug
discovery
within
organic
molecular
space,
TMCs
pose
further
challenges
including
encoding
chemical
bonds
higher
complexity
optimization
multiple
properties,
a
context
which
synthesizability
is
affected
by
additional,
complex
factors.
In
this
work,
we
developed
junction
tree
variational
autoencoder
(JT-VAE)
model
for
generation
ligands.
After
implementing
SMILES-based
metal–ligand
bonds,
was
trained
with
tmQMg-L
ligand
library,
allowing
random
thousands
monodentate
bidentate
ligands
full
validity
high
novelty.
The
generated
were
labeled
two
target
properties
associated
[IrL4]+
[IrL2]+
homoleptic
TMCs;
namely
HOMO-LUMO
gap
(ϵ)
charge
(qIr),
both
computed
at
DFT
level.
This
data
used
implement
conditional
JT-VAE
generating
from
prompt,
single
or
dual
objective
optimizing
either
one
Y
=
(ϵ,
qIr).
Conditional
able
navigate
central
extreme
regions
bidimensional
property
interpretation
based
on
step-wise
analysis
decoded
trajectories.
Язык: Английский