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

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For ()
  Energy (hartrees)
frozen core -580.4462413
correlated core -580.5772542
difference -0.1310129
  Energy (hartrees)
frozen core -580.4473882
correlated core -580.5779405
difference -0.1305523
  Energy (hartrees)
frozen core -580.4116008
correlated core -580.5452799
difference -0.1336791