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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 GaN atoms 1 and 2

For GaN (Gallium mononitride)
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 0.0007 0.0021 -0.0010 0.0239 0.0610 0.0421 0.0430 0.0677 0.0489 0.0503 0.0004 0.0016 0.0021 0.0094 0.0026 0.0142 0.0146
MP4=FULL   0.0021     0.0400       0.0494     0.0016 0.0029   0.0025 0.0131  
Coupled Cluster CCSD=FULL         0.0325           -0.0013 0.0010 0.0017 0.0092 0.0017 0.0086 0.0133
CCSD(T)=FULL         0.0334           -0.0013 0.0011 0.0017 0.0091 0.0017 0.0086 0.0130
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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