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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 AsH atoms 1 and 2

For AsH (Arsenic monohydride)
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 0.0003 -0.0004 -0.0000 0.0013 0.0010 0.0031 0.0033 0.0028 0.0077 0.0118 -0.0017 0.0009 0.0062 0.0156 0.0013 0.0153 0.0200
MP3=FULL         -0.0003   0.0042                    
MP4=FULL   0.0002     0.0017       0.0066     0.0000 0.0059   0.0017 0.0087  
Coupled Cluster CCSD=FULL         0.0017           -0.0017 0.0011 0.0056 0.0141 0.0021 0.0080 0.0181
CCSD(T)=FULL         0.0016           -0.0018 0.0010 0.0057 0.0144 0.0020 0.0079 0.0181
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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