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Adenine thymine Watson-Crick complex

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, S26,2 h-bond,double h-bond,nucleic base


Structure:

30

N     0.9350155   -0.0279801   -0.3788916
C     1.6739638   -0.0357766    0.7424316
C     3.0747955   -0.0094480    0.5994562
C     3.5646109    0.0195446   -0.7059872
N     2.8531510    0.0258031   -1.8409596
C     1.5490760    0.0012569   -1.5808009
N     4.0885824   -0.0054429    1.5289786
C     5.1829921    0.0253971    0.7872176
N     4.9294871    0.0412404   -0.5567274
N     1.0716177   -0.0765366    1.9391390
H     0.8794435    0.0050260   -2.4315709
H     6.1882591    0.0375542    1.1738824
H     5.6035368    0.0648755   -1.3036811
H     0.0586915   -0.0423765    2.0039181
H     1.6443796   -0.0347395    2.7619159
N    -3.9211729   -0.0009646   -1.5163659
C    -4.6136833    0.0169051   -0.3336520
C    -3.9917387    0.0219348    0.8663338
C    -2.5361367    0.0074651    0.8766724
N    -1.9256484   -0.0110593   -0.3638948
C    -2.5395897   -0.0149474   -1.5962357
C    -4.7106131    0.0413373    2.1738637
O    -1.8674730    0.0112093    1.9120833
O    -1.9416783   -0.0291878   -2.6573783
H    -4.4017172   -0.0036078   -2.4004924
H    -0.8838255   -0.0216168   -0.3784269
H    -5.6909220    0.0269347   -0.4227183
H    -4.4439282   -0.8302573    2.7695655
H    -4.4267056    0.9186178    2.7530256
H    -5.7883971    0.0505530    2.0247280
    

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Energies:

method counterpoise corrected remark value
MP2/CBS yes -16.54
CCSD(T)/CBS yes -16.37