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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 LiBe atoms 1 and 2

For LiBe (Lithium Beryllium)
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 0.0018 0.0013 0.0013 0.0022 0.1079 0.0092 0.0104 0.1368 0.0123 0.0546 0.0032 0.0098 0.0521 0.0339 0.0497 0.0721 0.0376
MP3=FULL         -0.1136   0.0110                    
Coupled Cluster CCSD(T)=FULL         0.0130           0.0059 0.0113 0.0684 0.0427 0.0526 0.0988 0.0478
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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