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Calculated Electron Affininty for GeH2 (germylene)

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Experimental Electron Affinity is 1.097 ± 0.0027 eV
Please note! These calculated electron affinity energies have the vibrational zero-point energy (zpe) included, but the zpe has NOT been scaled. Click on an entry for more details, including the ionization energy with a scaled zpe.
original data displayed. press to display differences
differences displayed. press to display original data

Electron Affinities in eV
Methods with predefined basis sets
composite G2 1.067
G3 1.154
G3B3 1.155
CBS-Q 1.123

Electron Affinities in eV
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 daug-cc-pVTZ
hartree fock HF -4.378 0.335 0.293 0.492 0.386 0.358 0.627 0.548 0.540 0.390   0.398 0.370 0.525 0.601 0.643 0.650 0.649 0.652
ROHF   0.335 0.293 0.492 0.386 0.358 0.651 0.548 0.540       0.370 0.525 0.601 0.643 0.650 0.649  
density functional LSDA     1.271 1.421 1.350 1.343 1.711 1.615 1.626 1.344   1.431 1.360 1.588   1.739 1.739    
BLYP   0.511 0.526 0.663 0.600 0.587 1.035 0.902 0.908 0.584   0.689 0.610 0.856          
B1B95 -3.110   0.495 0.629 0.526 0.526 0.838 0.774 0.778 0.524   0.751 0.578 0.748   0.907 0.897    
B3LYP -3.343 0.729 0.731 0.884 0.807 0.792 1.165 1.063 1.068 0.794   0.877 0.814 1.026 1.116 1.192 1.190 1.188  
B3LYPultrafine         0.807               0.813 1.025   1.191 1.189    
B3PW91 -3.222 0.872 0.859 1.015 0.930 0.916 1.215 1.123 1.127 0.917   0.980 0.925 1.104          
mPW1PW91 -3.258 0.872 0.856 1.014 0.927 0.912 1.213 1.112 1.115 0.914   0.970 0.919 1.093   1.221 1.224    
M06-2X -3.551 0.781 0.731 0.961 0.866 0.847 1.131 1.053 1.052 0.870   0.911 0.872 1.010   1.159 1.136    
PBEPBE   0.769 0.766 0.903 0.833 0.822 1.204 1.075 1.080 0.816   0.897 0.831 1.045   1.216 1.222    
PBEPBEultrafine         0.835               0.832 1.044   1.217 1.221    
PBE1PBE -3.297   0.834 0.991 0.905 0.905 1.199 1.098 1.101 0.892   0.948 0.899 1.076   1.208 1.212    
HSEh1PBE -3.303 0.839 0.824 0.978 0.893 0.879   1.098 1.101 0.879   0.942 0.889 1.073   1.209 1.211    
TPSSh         0.900   1.175     0.878       1.048          
wB97X-D     0.695   0.755   1.038   0.953     0.809 1.038 0.926     1.053    
B97D3   0.642     0.736   1.056   0.964   1.084 0.802   0.956     1.102    
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 daug-cc-pVTZ
Moller Plesset perturbation MP2 -4.561 0.318 0.487 0.480 0.584 0.577 0.892 0.778 0.792 0.665   0.633 0.599 0.896 1.012 1.014 1.081 1.087  
MP2=FULL -4.562 0.316 0.487 0.469 0.601 0.591 0.906 0.801 0.812 0.675   0.626 0.599   0.986 1.010 1.067    
ROMP2 -4.571   0.494 0.473 0.590 0.583 0.898 0.782 0.797 0.682     0.609 0.919   1.030      
MP3         0.579                            
MP3=FULL         0.585   0.889                        
MP4   0.273     0.573       0.784     0.614 0.573 0.919   1.027 1.113    
MP4=FULL   0.272     0.582       0.801       0.572 0.909   1.024 1.101    
Configuration interaction CID   0.268 0.422 0.428 0.529     0.722                      
CISD   0.268 0.428 0.428 0.538     0.727                      
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 daug-cc-pVTZ
Quadratic configuration interaction QCISD   0.258 0.439 0.417 0.550 0.533 0.843 0.744 0.746 0.653   0.583 0.543 0.870   0.974 1.049    
QCISD(T)         0.559             0.593 0.553 0.902   1.011 1.097    
Coupled Cluster CCD   0.257 0.429 0.417 0.537 0.525 0.837 0.736 0.742 0.634   0.574 0.538 0.852   0.962 1.030    
CCSD         0.547             0.581 0.542 0.868 0.988 0.972 1.047 1.054  
CCSD=FULL         0.557             0.576 0.541 0.857 0.965 0.968 1.034 1.028  
CCSD(T)         0.558             0.592 0.552 0.901 1.033 1.009 1.096    
CCSD(T)=FULL         0.567             0.585 0.551 0.889   1.005 1.083    
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 daug-cc-pVTZ

Electron Affinities in eV
Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD cc-pVTZ-PP aug-cc-pVTZ-PP Def2TZVPP
hartree fock HF 0.489   0.537   0.374 0.314     0.416
density functional B3LYP 1.004   1.050   0.842 0.818     0.882
PBEPBE                 0.902
Moller Plesset perturbation MP2 0.505   0.561   0.327 0.290     0.780
For descriptions of the methods (AM1, HF, MP2, ...) and basis sets (3-21G, 3-21G*, 6-31G, ...) see the glossary in section I.C. Predefined means the basis set used is determined by the method.