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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 TiO atoms 1 and 2

For TiO (Titanium monoxide)
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 -0.0005 0.0012 0.0012 0.0009 0.0107 0.0091 0.0091 -0.0034 0.0059 0.0203 0.0063 0.0108 0.0157 0.0200 0.0194 0.0170 0.0222
MP3=FULL         0.0057   0.0041       0.0016 0.0078 0.0121        
MP4=FULL   0.0004     0.0041       0.0009     0.0052 0.0060   0.0099 0.0068  
B2PLYP=FULL -0.0010 -0.0001 -0.0001 -0.0002 0.0034 0.0034 0.0028 0.0011 0.0011 0.0071 0.0016 0.0043 0.0043   0.0072 0.0048  
Quadratic configuration interaction QCISD(T)=FULL         0.0139             0.0297 0.0172     0.0195  
Coupled Cluster CCSD=FULL         0.0077         0.0210 0.0036 0.0109 0.0128 0.0181 0.0195 0.0148 0.0206
CCSD(T)=FULL         0.0084           0.0053 0.0109 0.0127 0.0173 0.0195 0.0144 0.0200
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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