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/STO-3G

For ()
  Energy (hartrees)
frozen core -572.9587606
correlated core -572.9607463
difference -0.0019858
  Energy (hartrees)
frozen core -573.0134939
correlated core -573.0154932
difference -0.0019993
  Energy (hartrees)
frozen core -573.0267265
correlated core -573.0286618
difference -0.0019352
  Energy (hartrees)
frozen core -573.0110458
correlated core -573.0130333
difference -0.0019875