National Institute of Standards and Technology
Computational Chemistry Comparison and Benchmark DataBase
Release 22May 2022
NIST Standard Reference Database 101
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III.G.10.a.

Energy differences between frozen core and all electrons correlated.
MP2, MP3, MP4, B2PLYP, CCSD, and CCSD(T)

For CHBrCHBr (Ethene, 1,2-dibromo-, (Z)-)


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) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ
Moller Plesset perturbation MP2=FULL -0.000921 -0.010119 -0.024068 -0.024447 -0.065320 -0.065740 -0.067491 -0.826402 -0.826757 -0.184471 -0.928863 -0.165579 -0.021160 -0.122944 -0.218810 -0.026264 -0.140007 -0.225323
MP3=FULL         -0.061465   -0.063592       -0.829693 -0.145439 -0.018716 -0.110784        
MP4=FULL   -0.009673     -0.063535       -0.781257   -0.878038   -0.020088 -0.120163   -0.025199 -0.137141  
B2PLYP=FULL -0.000284 -0.003061 -0.007333 -0.007215 -0.019934 -0.020055 -0.020570 -0.242369 -0.242475 -0.056503 -0.272550 -0.048890 -0.006482 -0.036660   -0.008021 -0.041547  
Coupled Cluster CCSD=FULL         -0.061669         -0.171813 -0.854914 -0.150677 -0.018857 -0.113558 -0.203531 -0.026750 -0.130109 -0.209598
CCSD(T)=FULL         -0.062952           -0.863795 -0.154433 -0.019692 -0.116987 -0.208190 -0.024631 -0.134334 -0.209593
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) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ