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Energy differences between frozen core and full core for QCISD(TQ)/aug-cc-pVTZ

19 06 19 13 52
For ()
  Energy (hartrees)
frozen core -412.7501768
correlated core -412.8212562
difference -0.0710793
  Energy (hartrees)
frozen core -412.7504408
correlated core -412.8211572
difference -0.0707164