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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CISD/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at CISD/daug-cc-pVTZ
 hartrees
Energy at 0K-116.323016
Energy at 298.15K 
HF Energy-115.866963
Nuclear repulsion energy64.270003
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CISD/daug-cc-pVTZ
ABC
1.02228 0.74015 0.46889

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.857
C2 0.000 0.642 -0.498
C3 0.000 -0.642 -0.498
H4 0.000 1.567 -1.032
H5 0.000 -1.567 -1.032
H6 0.907 0.000 1.447
H7 -0.907 0.000 1.447

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.49951.49952.45472.45471.08141.0814
C21.49951.28361.06832.27232.23952.2395
C31.49951.28362.27231.06832.23952.2395
H42.45471.06832.27233.13343.06963.0696
H52.45472.27231.06833.13343.06963.0696
H61.08142.23952.23953.06963.06961.8133
H71.08142.23952.23953.06963.06961.8133

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.659 C1 C2 H4 145.366
C1 C3 C2 64.659 C1 C3 H5 145.366
C2 C1 C3 50.683 C2 C1 H6 119.508
C2 C1 H7 119.508 C2 C3 H5 149.975
C3 C1 H6 119.508 C3 C1 H7 119.508
C3 C2 H4 149.975 H6 C1 H7 113.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability