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Energy differences between frozen core and full core for CCSD(T)/cc-pVQZ

19 06 19 13 52
For ()
  Energy (hartrees)
frozen core -412.7667213
correlated core -412.8662801
difference -0.0995588
  Energy (hartrees)
frozen core -412.7668303
correlated core -412.8662802
difference -0.0994499