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Energy differences between frozen core and full core for CCSD(T)/TZVP

19 06 19 13 52
For ()
  Energy (hartrees)
frozen core -168.2294449
correlated core -168.2829972
difference -0.0535523
  Energy (hartrees)
frozen core -168.2297664
correlated core -168.2832290
difference -0.0534626