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 MP2/6-311G*

For ()
  Energy (hartrees)
frozen core -194.6607162
correlated core -194.7535632
difference -0.0928470
  Energy (hartrees)
frozen core -194.6607162
correlated core -194.7535636
difference -0.0928474
  Energy (hartrees)
frozen core -194.6607167
correlated core -194.7535632
difference -0.0928465
  Energy (hartrees)
frozen core -194.6607167
correlated core -194.7535636
difference -0.0928470
  Energy (hartrees)
frozen core -194.6589735
correlated core -194.7535632
difference -0.0945897
  Energy (hartrees)
frozen core -194.6589735
correlated core -194.7535636
difference -0.0945901