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formamide dimer (2.0)

MP2/CBS extrapolation: cc-pVQZ to cc-pV5Z, CCSD(T) correction in cc-pVTZ basis set

From Dataset: S22x5: S22 in nonequilibrium geometries

Dataset reference: L. Gráfová, M. Pitoňák, J. Řezáč, P. Hobza; J. Chem. Thory Comput. 2010, ASAP article

Optimization level: MP2/cc-pVTZ (shifted in H-bond axis to 2.0 original H-bond distance)

Tags: complex, 2 h-bond, S22x5, shifted, longer


Structure:

12

C -0.604120150 -1.070346233 0.000000000
O 0.000000000 0.000000000 0.000000000
N -0.035273679 -2.286277608 0.000000000
H -0.620847527 -3.100915874 0.000000000
H 0.982356530 -2.387103713 0.000000000
H -1.704185444 -1.098607493 0.000000000
C 5.267601070 -1.316757480 0.000000000
O 4.663480920 -2.387103713 0.000000000
N 4.698754599 -0.100826104 0.000000000
H 5.284328447 0.713812161 0.000000000
H 3.681124390 0.000000000 0.000000000
H 6.367666364 -1.288496220 0.000000000

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Energies:

method counterpoise corrected remark value
CCSD(T)/CBS yes -3.51