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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 AlGa atoms 1 and 2

For AlGa (Aluminum Gallium)
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 0.0016 -0.0006 0.0095 0.0002 0.0217 0.0217 0.0208 0.0310 0.0310 0.0861 0.0042 0.0101 0.0252 0.0118 0.0094 0.0368 0.0369
MP3=FULL         0.0179   0.0170       -0.0037 0.0082 0.0176        
MP4=FULL   -0.0006     0.0225       0.0297     0.0100 0.0258   0.0102 0.0374  
B2PLYP=FULL 0.0010 0.0002 0.0031 0.0011 0.0086 0.0086 0.0083 0.0114 0.0114 0.0311 0.0016 0.0035 0.0076   0.0031 0.0110  
Quadratic configuration interaction QCISD(T)=FULL         0.0219             0.0105 0.0224   0.0102 0.0335  
Coupled Cluster CCSD=FULL         0.0190         0.0764 -0.0000 0.0094 0.0202 0.0079 0.0086 0.0310 0.0321
CCSD(T)=FULL         0.0218           -0.0001 0.0102 0.0221 0.0087 0.0101 0.0332 0.0342
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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