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Energy differences between frozen core and all electrons correlated.
MP2, MP3, MP4, B2PLYP, CCSD, and CCSD(T)

For CDCl3 (trichloromethane-d)

Energies in Hartree
Methods with standard basis sets
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.000632 -0.014841 -0.037351 -0.009513 -0.035091 -0.035295 -0.037105 -0.166085 -0.166308 -0.070448 -0.098930 -0.020808 -0.116422 -0.024869 -0.127610
MP3=FULL         -0.032273   -0.042500                
MP4=FULL   -0.013767     -0.032901       -0.166774     -0.018738 -0.113622 -0.022771 -0.125123
Coupled Cluster CCSD=FULL         -0.032012           -0.096205 -0.018011 -0.110780 -0.021845  
CCSD(T)=FULL         -0.032741           -0.097716 -0.018609 -0.113089 -0.022560  
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ