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

For CD3F (methylfluoride-d3)

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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ
Moller Plesset perturbation MP2=FULL -0.000455 -0.003462 -0.003462 -0.002322 -0.006799 -0.007345 -0.007792 -0.037115 -0.037560 -0.012384 -0.033912 -0.004769 -0.028814 -0.059551 -0.005468 -0.032537 -0.060554
MP4=FULL   -0.003243     -0.006620       -0.038611     -0.004457 -0.029322   -0.005155 -0.033332  
B2PLYP=FULL -0.000137 -0.001018 -0.001018 -0.000683 -0.001999 -0.002154 -0.002281 -0.010505 -0.010638 -0.003589 -0.009613 -0.001397 -0.008294   -0.001604 -0.009349  
Coupled Cluster CCSD=FULL         -0.006516           -0.034986 -0.004377 -0.029043 -0.061188 -0.005064 -0.033041 -0.062335
CCSD(T)=FULL         -0.006587           -0.025597 0.003397 -0.029286 -0.061683 -0.005123 -0.033301 -0.062735
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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ