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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 NaMg atoms 1 and 2

For NaMg (Sodium Magnesium)
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
Moller Plesset perturbation MP2=FULL 0.0188 0.0404 0.0735 0.0798 -1.3195 0.1418 0.1508 -1.3499 0.0555 1.0992 0.2291 0.0992 1.0780 1.0675 0.2443 1.1030 1.2051
MP3=FULL         1.3274   0.0108                    
Coupled Cluster CCSD(T)=FULL         0.0770           0.0584 0.0622 0.1944 0.2054 0.0710 0.2048 0.2995
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

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