National Institute of Standards and Technology
Computational Chemistry Comparison and Benchmark DataBase
Release 22May 2022
NIST Standard Reference Database 101
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III.G.10.a.

Energy differences between frozen core and full core for B2PLYP/6-311+G(3df,2p)

For ()
  Energy (hartrees)
frozen core -579.8050839
correlated core -579.9016829
difference -0.0965991
  Energy (hartrees)
frozen core -579.8373348
correlated core -579.9342837
difference -0.0969490
  Energy (hartrees)
frozen core -579.8673675
correlated core -579.9647691
difference -0.0974016
  Energy (hartrees)
frozen core -579.8514763
correlated core -579.9486663
difference -0.0971900