crest-lab / crest

CREST - A program for the automated exploration of low-energy molecular chemical space.
https://crest-lab.github.io/crest-docs/
GNU Lesser General Public License v3.0
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Incorrect crest conformer search energy when using mtd and optimization method #348

Closed jevandezande closed 1 month ago

jevandezande commented 1 month ago

Following the custom conformational search example, the dynamics method affects the final energy after optimization.

To Reproduce geom.xyz

5
Methane
C     0.0000000000    0.0000000000    0.0000000000
H     0.6250000000    0.6250000000    0.6250000000
H    -0.6250000000   -0.6250000000    0.6250000000
H    -0.6250000000    0.6250000000   -0.6250000000
H     0.6250000000   -0.6250000000   -0.6250000000

input.toml

input="geom.xyz"
runtype="imtd-gc"
multilevelopt = false

[calculation]
[[calculation.level]]
# MTD
method="gfnff"
weight=1.0

[[calculation.level]]
# Opt
method="gfn2"

[dynamics]
active=[1]
MTD Method Energy
GFN-FF -4.80606
GFN0 -8.53465
GFN1 -8.44947
GFN2 -8.35044
pprcht commented 1 month ago

Thanks for noticing this!