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

19 06 19 13 52
For ()
  Energy (hartrees)
frozen core -958.0440471
correlated core -958.1320237
difference -0.0879767
  Energy (hartrees)
frozen core -958.0451247
correlated core -958.1326873
difference -0.0875627