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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-191.565783
Energy at 298.15K-191.560896
HF Energy-190.725052
Nuclear repulsion energy109.699471
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 CBS-Q
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 3289 3289 0.19      
2 A1 2152 2152 414.12      
3 A1 1580 1580 0.79      
4 A1 1150 1150 15.93      
5 A1 1138 1138 0.03      
6 A1 788 788 10.79      
7 A2 3367 3367 0.00      
8 A2 1272 1272 0.00      
9 A2 708 708 0.00      
10 B1 3380 3380 7.54      
11 B1 1220 1220 0.60      
12 B1 761 761 0.49      
13 B1 382 382 9.63      
14 B2 3285 3285 6.87      
15 B2 1554 1554 3.96      
16 B2 1199 1199 22.90      
17 B2 1061 1061 128.78      
18 B2 553 553 5.58      

Unscaled Zero Point Vibrational Energy (zpe) 14418.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14418.9 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 CBS-Q
ABC
0.67357 0.24488 0.19361

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.388
O2 0.000 0.000 1.563
C3 0.000 0.780 -0.853
C4 0.000 -0.780 -0.853
H5 0.909 1.281 -1.150
H6 -0.909 1.281 -1.150
H7 -0.909 -1.281 -1.150
H8 0.909 -1.281 -1.150

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.17481.46571.46572.19872.19872.19872.1987
O21.17482.53852.53853.13523.13523.13523.1352
C31.46572.53851.56041.07961.07962.27242.2724
C41.46572.53851.56042.27242.27241.07961.0796
H52.19873.13521.07962.27241.81773.14162.5623
H62.19873.13521.07962.27241.81772.56233.1416
H72.19873.13522.27241.07963.14162.56231.8177
H82.19873.13522.27241.07962.56233.14161.8177

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.840 C1 C3 H5 118.712
C1 C3 H6 118.712 C1 C4 C3 57.840
C1 C4 H7 118.712 C1 C4 H8 118.712
O2 C1 C3 147.840 O2 C1 C4 147.840
C3 C1 C4 64.319 C3 C4 H7 117.648
C3 C4 H8 117.648 C4 C3 H5 117.648
C4 C3 H6 117.648 H5 C3 H6 114.664
H7 C4 H8 114.664
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability