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38 Cyclopentane ... Cyclopentane

From Dataset: S66: A Well-balanced Database of Benchmark Interaction Energies Relevant to Biomolecular Structure

Dataset reference: Řezáč, J., Riley, K.E., Hobza, P., J. Chem. Theory Comput. (2011), DOI: 10.1021/ct2002946

Optimization level: MP2/cc-pVTZ (interpolated CCSD(T)/CBS minimum)

Tags: dispersion aliphatic-aliphatic


Structure:

30

C    0.956880185  -0.891845634   1.141950005
H    1.504565968  -1.278357625   0.283420189
H    1.421384473  -1.314777934   2.031025457
C    0.990949429   0.658508299   1.145503845
H    1.510594456   1.023096462   0.259947883
H    1.516258229   1.059818131   2.010537025
C   -0.479451941   1.102318793   1.103879102
H   -0.616268611   2.064877218   0.613567367
H   -0.874742231   1.189071444   2.118069595
C   -1.182106501  -0.052796555   0.393345754
H   -0.948882159  -0.026830303  -0.673804592
H   -2.265664523  -0.033564738   0.501274026
C   -0.530659579  -1.274889539   1.039309594
H   -0.690390612  -2.197020928   0.482992214
H   -0.950849387  -1.415411973   2.036747824
C   -1.131985166  -0.383918557   5.055966263
H   -1.465119664  -0.147219942   4.043381900
H   -1.936773566  -0.927017020   5.548952766
C    0.181621285  -1.179463470   5.008205065
H    0.231566226  -1.837206160   4.142071243
H    0.261908905  -1.810821101   5.892590357
C    1.310936507  -0.116757644   5.008801159
H    1.932201462  -0.177436493   4.116927540
H    1.968345999  -0.266640686   5.864206329
C    0.600763138   1.244911105   5.116667992
H    0.420899962   1.653402890   4.120668868
H    1.181147095   1.979314606   5.672641260
C   -0.741289323   0.910438665   5.766479852
H   -1.480957888   1.702950434   5.661598551
H   -0.601249394   0.718798616   6.833028811

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Energies:

method counterpoise corrected remark value
CCSD(T)/CBS(aDZ) yes -2.997
CCSD(T)/CBS(haTZ) yes -2.977
CCSD(T)/CBS(haD->TZ) yes -2.986
MP2/cc-pVTZ yes -2.569
MP2/aug-cc-pVDZ yes -2.641
MP2/CBS yes -3.137
MP2C/CBS yes -3.09
SCS-MP2/CBS yes -1.862
SCS-MI-MP2/CBS yes -2.189
DW-MP2/CBS yes -2.112
MP3/CBS yes -2.463
MP2.5/CBS yes -2.8
CCSD/CBS yes -2.259
SCS-CCSD/CBS yes -3.085
SCS-MI-CCSD/CBS yes -3.163