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Bond Length differences between FULL (all electrons correlated) and FROZEN core

Such as MP2=Frozen and MP2=Full
17 10 27 16 27

For GeO atoms 1 and 2

For GeO (Germanium monoxide)
Bond length differences (full - frozen) in Å. Mouse over a difference for the bond length with full correlation.
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
Moller Plesset perturbation MP2=FULL 0.0026 0.0011 -0.0004 0.0055 0.0134 0.0104 0.0105 0.0176 0.0126 0.0187 0.0161 -0.0005 0.0003 0.0032 0.0079 0.0006 0.0051 0.0108
MP3=FULL         0.0086   0.0064       0.0108 -0.0014 0.0001 0.0013        
MP4=FULL   0.0001     0.0172       0.0175   0.0203   0.0059 0.0058   0.0019 0.0081  
B2PLYP=FULL 0.0007 -0.0079 -0.0002 0.0027 0.0052 0.0041 0.0006 0.0047 0.0047 0.0108 0.0059 -0.0002 0.0001 0.0028   0.0002 0.0035  
Quadratic configuration interaction QCISD(T)=FULL         0.0093           0.0132   0.0002 0.0022   0.0004 0.0037  
Coupled Cluster CCSD=FULL         0.0120         0.0164 0.0125 -0.0009 0.0002 0.0026 0.0058 0.0004 0.0043 0.0081
CCSD(T)=FULL         0.1522           0.0128 -0.0012 0.0002 0.0021 0.0061 0.0004 0.0036 0.0086
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

geoq1.gif