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Adenine thymine complex stack

MP2/CBS extrapolation: cc-pVTZ to cc-pVQZ, CCSD(T) correction in cc-pVDZ basis set

From Dataset: S22 – benchmark noncovalent complexes

Dataset reference: P. Jurecka, J. Sponer, J. Cerny, P. Hobza; Phys Chem Chem Phys 2006, 8 (17), 1985-1993

Optimization level: MP2/cc-pVTZ

Tags: Complex,S22, S26,stack,dispersion bonded,nucleic base


Structure:

30

N     0.2793014    2.4068393   -0.6057517
C    -1.0848570    2.4457461   -0.5511608
H    -1.6594403    3.0230294   -1.2560905
N    -1.5977117    1.7179877    0.4287543
C    -0.4897255    1.1714358    1.0301910
C    -0.3461366    0.2914710    2.1172343
N    -1.4187090   -0.1677767    2.8101441
H    -1.2388750   -0.9594802    3.4047578
H    -2.2918734   -0.1788223    2.3073619
N     0.8857630   -0.0700763    2.4919494
C     1.9352348    0.4072878    1.7968022
H     2.9060330    0.0788414    2.1458181
N     1.9409775    1.2242019    0.7402202
C     0.6952186    1.5779858    0.4063984
H     0.8610073    2.8298045   -1.3104502
N     1.2754606   -0.6478993   -1.9779104
C     1.4130533   -1.5536850   -0.9550667
H     2.4258769   -1.8670780   -0.7468778
C     0.3575976   -2.0239499   -0.2530575
C     0.4821292   -3.0179494    0.8521221
H     0.1757705   -2.5756065    1.7986281
H    -0.1601691   -3.8770412    0.6639498
H     1.5112443   -3.3572767    0.9513659
C    -0.9684711   -1.5298112   -0.5939792
O    -2.0029280   -1.8396957   -0.0199453
N    -0.9956916   -0.6383870   -1.6720420
H    -1.9014057   -0.2501720   -1.8985760
C     0.0684702   -0.1191762   -2.3763759
O    -0.0397875    0.7227006   -3.2531083
H     2.0853289   -0.2760176   -2.4454577
    

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Energies:

method counterpoise corrected remark value
MP2/CBS yes -14.93
CCSD(T)/CBS yes -12.23