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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 CO- atoms 1 and 2

For CO- (carbon monoxide anion)
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 cc-pCVDZ cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2=FULL 0.0001 0.0001 0.0001 0.0002 0.0063 0.0012 0.0010 0.0102 0.0010 0.0028 0.0014 0.0008 0.0007 0.0041 0.0031 0.0006 0.0035 0.0047 0.0008 0.0020   0.0048
MP3=FULL         -0.0010   0.0205       0.0012 0.0008 0.0006 0.0040         0.0007 0.0018   0.0043
MP4=FULL   0.0001     0.0013       0.0010   0.0020   0.0007 0.0045   0.0008 0.0033   0.0008 0.0020   0.0055
B2PLYP=FULL 0.0000 0.0216 0.0000 0.0000 0.0103 0.0004 0.0015 0.0003 0.0002 0.0008 0.0007 0.0003 0.0002 0.0156   0.0003 0.0019   0.0002 0.0006 0.0002 0.0014
Quadratic configuration interaction QCISD(T)=FULL         0.0013           0.0027   0.0007 0.0043   0.0010 0.0089   0.0008 0.0020   0.0049
Coupled Cluster CCSD=FULL         0.0012         0.0027 0.0025 0.0009 0.0007 0.0041 0.0033 0.0010 0.0080 0.0031 0.0008 0.0020   0.0047
CCSD(T)=FULL         0.0012           0.0024 0.0010 0.0007 0.0043 0.0032 0.0010 0.0088 0.0034 0.0008 0.0020   0.0049
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 cc-pCVDZ cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ

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