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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 OH- atoms 1 and 2

For OH- (hydroxide 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) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.0000 0.0001 0.0001 0.0000 0.0022 0.0007 0.0006 0.0042 0.0007 0.0010 0.0002 0.0006 0.0017 0.0018 0.0005 0.0030 0.0017 0.0006 0.0026
MP3=FULL         0.0002   0.0006       0.0002 0.0006 0.0018         0.0005 0.0028
MP4=FULL   0.0001     0.0002       0.0005     0.0006 0.0018   0.0005 0.0037   0.0005 0.0030
B2PLYP=FULL -0.0000 0.0000 0.0000 0.0000 0.0001 0.0002 0.0002 0.0001 0.0002 0.0000 0.0000 0.0002 0.0005   0.0001 0.0009   0.0001 0.0008
Quadratic configuration interaction QCISD(T)=FULL         0.0002             0.0006 0.0018   0.0005 0.0034   0.0005 0.0030
Coupled Cluster CCSD=FULL         0.0002         0.0010 0.0002 0.0006 0.0019 0.0018 0.0005 0.0034 0.0015 0.0005 0.0030
CCSD(T)=FULL         0.0002           0.0002 0.0006 0.0018 0.0018 0.0005 0.0034 0.0014 0.0005 0.0030
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ

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