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

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For ()
  Energy (hartrees)
frozen core -169.5188383
correlated core -169.5721541
difference -0.0533158
  Energy (hartrees)
frozen core -169.5283243
correlated core -169.5816618
difference -0.0533375
  Energy (hartrees)
frozen core -169.5223127
correlated core -169.5756084
difference -0.0532957