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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 NaF atoms 1 and 2

For NaF (sodium fluoride)
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 cc-pCVDZ cc-pCVTZ
Moller Plesset perturbation MP2=FULL 0.0156 0.0145 0.0192 0.0101 0.0164 0.0218 0.0380 0.0016 0.0176 0.0386 0.0191 0.0190 0.0301 0.0669 0.0398 0.0245 0.2560 0.0205 0.0403
MP3=FULL         0.0234   -0.0076       0.0190 0.0192 0.0341         0.0205 0.0414
MP4=FULL   0.0138     0.0241       0.0199     0.0212 0.0358   0.0447 0.0655   0.0228 0.0442
B2PLYP=FULL -0.0011 -0.0187 0.0059 0.0030 -0.0101 0.0068 0.0133 0.0051 0.0052 0.0143 0.0055 0.0062 -0.0124   0.0124 0.0176   0.0063 0.0119
Quadratic configuration interaction QCISD(T)=FULL         0.0231             0.0209 0.0356   0.0435 0.0650   0.0226 0.0434
Coupled Cluster CCSD=FULL         0.0223         0.0512 0.0196 0.0203 0.0346 0.0721 0.0418 0.0629 0.2527 0.0213 0.0415
CCSD(T)=FULL         0.0230           0.0204 0.0207 0.0353 0.0737 0.0430 0.0645 0.2599 0.0225 0.0430
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 cc-pCVDZ cc-pCVTZ

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