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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 LiMg atoms 1 and 2

For LiMg (Lithium 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 0.0101 0.0182 0.0191 0.0447 -0.1109 0.0610 0.0547 -0.1112 0.0110 0.1395 0.0385 0.0484 0.1069 0.1137 0.0529 0.1264 0.1255
MP3=FULL         0.1259   0.0118                    
Coupled Cluster CCSD(T)=FULL         0.0397           0.0145 0.0294 0.0789 0.0859 0.0332 0.0921 0.0944
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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