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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 SiO atoms 1 and 2

For SiO (Silicon 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 cc-pV(T+d)Z aug-cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ aug-cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.0006 -0.0006 0.0000 -0.0004 0.0002 0.0002 0.0002 0.0003 0.0003 0.0037 0.0028 0.0006 0.0004 0.0026 0.0058 0.0006 0.0048 0.0074 0.0038 0.0061 0.0004 0.0033 0.0035 0.0007 0.0054
MP3=FULL         0.0022   -0.0039                         0.0048     0.0026    
MP4=FULL                                       0.0064     0.0031    
B2PLYP=FULL -0.0002 -0.0002 -0.0000 -0.0002 0.0000 0.0000 0.0000 0.0001 0.0001 0.0011 0.0008 0.0000 0.0001 0.0007   0.0002 0.0013     0.0017     0.0009 0.0002 0.0014
Quadratic configuration interaction QCISD(T)=FULL         0.0003           0.0024   0.0004 0.0024   0.0006 0.0046     0.0056     0.0030 0.0007 0.0049
Coupled Cluster CCSD=FULL         0.0000         0.0032 0.0025 0.0005 0.0003 0.0024 0.0051 0.0005 0.0043     0.0053     0.0031 0.0006 0.0046
CCSD(T)=FULL         0.0002           0.0023 0.0006 0.0002 0.0022 0.0053 0.0006 0.0045 0.0070   0.0055 0.0004 0.0028 0.0030 0.0007 0.0048
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-pV(T+d)Z aug-cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ aug-cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ

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