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

For CH2BrF (Methane, bromofluoro-)

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 -0.000473 -0.006806 -0.013699 -0.013010 -0.034415 -0.034825 -0.036100 -0.431859 -0.432214 -0.096665 -0.099621 -0.012601 -0.074178 -0.015633 -0.083723
MP3=FULL         -0.032320   -0.033978       -0.089851 -0.011220 -0.068051    
MP4=FULL   -0.006430     -0.033341       -0.409574     -0.011888 -0.072703 -0.014925 -0.082314
B2PLYP=FULL -0.000143 -0.002031 -0.004145 -0.003824 -0.010464 -0.010582 -0.010954 -0.126404 -0.126508 -0.029502 -0.029158 -0.003815 -0.021941 -0.004728 -0.024658
Quadratic configuration interaction QCISD(T)=FULL         -0.033085             -0.011704 -0.071245 -0.014666 -0.080711
Coupled Cluster CCSD=FULL         -0.032419         -0.090421 -0.092449 -0.011264 -0.069346 -0.014113 -0.078755
CCSD(T)=FULL         -0.033064           -0.094384 -0.011694 -0.071164 -0.014645 -0.080622
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