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Bond Length differences between CCSD(T)=FULL (all electrons correlated) and CCSD(T) (frozen core)

For BF atoms 1 and 2

For BF (Boron monofluoride)
Bond length differences (full - frozen) in Å
Methods with standard basis sets
6-31G* cc-pVDZ cc-pVTZ cc-pCVDZ cc-pCVTZ
Coupled Cluster CCSD(T)=FULL -0.0024 -0.0009 -0.0056 -0.0010 -0.0023