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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 -79.6987170
correlated core -79.7587486
difference -0.0600317
  Energy (hartrees)
frozen core -79.6943715
correlated core -79.7543797
difference -0.0600081