![]() |
Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
You are here: Home > Ions > Energy > Calculated Ionization Energy OR Calculated > Energy > Ion > Calculated Ionization Energy |
semi-empirical | PM3 | |
---|---|---|
composite | G2 | 12.937 |
G3 | 12.895 | |
G3B3 | 12.901 | |
G3MP2 | 12.869 | |
G4 | 12.917 | |
CBS-Q | 12.984 |
CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
---|---|---|---|---|---|---|---|---|---|---|
hartree fock | HF | 11.270 | 11.208 | 11.229 | 11.190 | 11.226 | 11.223 | 11.291 | ||
ROHF | 11.393 | |||||||||
density functional | BLYP | 13.101 | ||||||||
B1B95 | 12.894 | |||||||||
B3LYP | 12.920 | 12.877 | 12.904 | 12.891 | 12.981 | 12.970 | 13.163 | |||
B3LYPultrafine | 13.163 | |||||||||
B3PW91 | 13.041 | |||||||||
mPW1PW91 | 12.966 | |||||||||
M06-2X | 12.978 | |||||||||
PBEPBE | 13.083 | |||||||||
PBEPBEultrafine | 13.083 | |||||||||
PBE1PBE | 12.933 | |||||||||
HSEh1PBE | 12.941 | |||||||||
TPSSh | 12.818 | |||||||||
wB97X-D | 12.816 | 12.787 | 12.810 | 12.803 | 12.826 | 12.817 | 12.985 | |||
B97D3 | 12.926 | |||||||||
Moller Plesset perturbation | MP2 | 12.177 | 12.357 | 12.221 | 12.400 | 12.194 | 12.196 | 12.825 | ||
MP2=FULL | 12.833 | |||||||||
ROMP2 | 12.832 | |||||||||
MP3 | 12.728 | |||||||||
MP3=FULL | 12.735 | |||||||||
MP4 | 12.780 | |||||||||
MP4=FULL | 12.787 | |||||||||
B2PLYP | 12.956 | |||||||||
B2PLYP=FULL | 12.958 | |||||||||
B2PLYP=FULLultrafine | 12.958 | |||||||||
Configuration interaction | CID | 12.603 | ||||||||
CISD | 12.605 | |||||||||
Quadratic configuration interaction | QCISD | 12.704 | ||||||||
QCISD(T) | 12.760 | |||||||||
QCISD(T)=FULL | 12.768 | |||||||||
QCISD(TQ) | 12.757 | |||||||||
QCISD(TQ)=FULL | 12.765 | |||||||||
Coupled Cluster | CCD | 12.699 | ||||||||
CCSD | 12.700 | |||||||||
CCSD=FULL | 12.708 | |||||||||
CCSD(T) | 12.758 | |||||||||
CCSD(T)=FULL | 12.765 |