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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-188.523037
Energy at 298.15K-188.527171
HF Energy-188.288152
Nuclear repulsion energy105.845153
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 MP2=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3441 3059 5.21      
2 A1 1967 1749 25.37      
3 A1 1623 1443 0.35      
4 A1 1245 1106 1.14      
5 A1 1141 1014 2.11      
6 A1 827 735 0.00      
7 A2 3589 3190 0.00      
8 A2 1304 1159 0.00      
9 A2 782 695 0.00      
10 B1 3593 3194 0.10      
11 B1 1198 1065 0.01      
12 B1 813 723 0.31      
13 B1 356 316 1.12      
14 B2 3436 3055 4.50      
15 B2 1616 1437 0.00      
16 B2 1256 1116 6.67      
17 B2 1045 929 63.65      
18 B2 507 450 8.16      

Unscaled Zero Point Vibrational Energy (zpe) 14869.4 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 13217.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/STO-3G
ABC
0.67194 0.22944 0.18383

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.403
O2 0.000 0.000 1.646
C3 0.000 0.785 -0.893
C4 0.000 -0.785 -0.893
H5 0.925 1.287 -1.218
H6 -0.925 1.287 -1.218
H7 -0.925 -1.287 -1.218
H8 0.925 -1.287 -1.218

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.24351.51471.51472.26712.26712.26712.2671
O21.24352.65752.65753.27383.27383.27383.2738
C31.51472.65751.56971.10181.10182.29222.2922
C41.51472.65751.56972.29222.29221.10181.1018
H52.26713.27381.10182.29221.85023.16992.5739
H62.26713.27381.10182.29221.85022.57393.1699
H72.26713.27382.29221.10183.16992.57391.8502
H82.26713.27382.29221.10182.57393.16991.8502

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 58.791 C1 C3 H5 119.267
C1 C3 H6 119.267 C1 C4 C3 58.791
C1 C4 H7 119.267 C1 C4 H8 119.267
O2 C1 C3 148.791 O2 C1 C4 148.791
C3 C1 C4 62.417 C3 C4 H7 117.112
C3 C4 H8 117.112 C4 C3 H5 117.112
C4 C3 H6 117.112 H5 C3 H6 114.203
H7 C4 H8 114.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability