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

For SiHF3 (trifluorosilane)

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) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ aug-cc-pV(T+d)Z aug-cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.003347 -0.012020 -0.018821 -0.007800 -0.019899 -0.020328 -0.022654 -0.180013 -0.180263 -0.043277 -0.234061 -0.084627 -0.014697 -0.098179 -0.141270 -0.018886 -0.108079 -0.148152 -0.157432 -0.482421 -0.020196 -0.113663
MP3=FULL         -0.019195   -0.021979       -0.235271 -0.085603 -0.013930 -0.097883         -0.158529 -0.488994 -0.019495 -0.113884
MP4=FULL   -0.011400     -0.019612       -0.181578   -0.237537   -0.014093 -0.099347   -0.018401 -0.109553   -0.160827 -0.492103 -0.019745 -0.115227
B2PLYP=FULL -0.001086 -0.003641 -0.005750 -0.002366 -0.006020 -0.006146 -0.006834 -0.051998 -0.052075 -0.012997 -0.067903 -0.024438 -0.004429 -0.028963   -0.005692 -0.031798   -0.046357 -0.137908 -0.006090 -0.033394
Quadratic configuration interaction QCISD(T)=FULL         -0.019580           -0.237416   -0.014083 -0.099283   -0.018394 -0.109513     -0.491823 -0.019743 -0.115212
Coupled Cluster CCSD=FULL         -0.019194         -0.042789 -0.235273 -0.085663 -0.013813 -0.097919 -0.143345 -0.018050 -0.108156 -0.150138 -0.158624 -0.488044 -0.019371 -0.113882
CCSD(T)=FULL         -0.019585           -0.237386 -0.086499 -0.014095 -0.099281 -0.144981 -0.018406 -0.109515   -0.160626 -0.491796 -0.019756 -0.115216
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ aug-cc-pV(T+d)Z aug-cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ