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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 HCl atoms 1 and 2

For HCl (Hydrogen chloride)
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) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(D+d)Z cc-pV(T+d)Z aug-cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ Sadlej_pVTZ
Moller Plesset perturbation MP2=FULL 0.0001 -0.0002 0.0001 -0.0000 0.0001 0.0011 0.0011 -0.0001 -0.0002 0.0021 0.0006 0.0021 0.0001 0.0013 0.0025 0.0012 0.0013 0.0040 0.0018 0.0016 0.0024 0.0044 0.0005 0.0016 0.0013 0.0030 -0.0004
MP3=FULL         -0.0009   0.0008                                   0.0013 0.0030  
MP4=FULL 0.0001 -0.0001 -0.0000 -0.0000 -0.0000 0.0011 0.0011 -0.0000 -0.0003 0.0020 0.0009 0.0019 -0.0006 0.0013 0.0021 0.0013 0.0013 0.0038 0.0017 0.0018 0.0022   0.0009 0.0013 0.0013 0.0030  
B2PLYP=FULL   0.0034     0.0003   0.0000                                   0.0004 0.0009  
Quadratic configuration interaction QCISD(T)=FULL                                                 0.0013 0.0030  
Coupled Cluster CCSD=FULL 0.0001 -0.0001 0.0001 0.0000 0.0001 0.0011 0.0012 0.0002 -0.0002 0.0020 0.0011 0.0022 -0.0001 0.0013 0.0023 0.0017 0.0013 0.0040 0.0016 0.0020 0.0025 0.0044 0.0012 0.0017 0.0013 0.0031  
CCSD(T)=FULL 0.0001 0.0000 -0.0000 0.0000 0.0001 0.0011 0.0011 -0.0000 -0.0003 0.0020 0.0009 0.0019 -0.0002 0.0018 0.0021 0.0017 0.0013 0.0038 0.0017   0.0023 0.0041 0.0010 0.0013 0.0013 0.0030  
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(D+d)Z cc-pV(T+d)Z aug-cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ Sadlej_pVTZ

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