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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-191.656803
Energy at 298.15K-191.660791
HF Energy-191.656803
Nuclear repulsion energy107.854275
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 PBEPBE/6-31G**
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 3061 3019 0.81      
2 A1 1901 1875 268.70      
3 A1 1391 1372 5.57      
4 A1 1044 1030 1.12      
5 A1 986 972 31.82      
6 A1 722 712 2.87      
7 A2 3141 3098 0.00      
8 A2 1133 1118 0.00      
9 A2 595 587 0.00      
10 B1 3154 3111 2.06      
11 B1 1066 1052 0.42      
12 B1 684 675 2.35      
13 B1 296 292 3.56      
14 B2 3062 3020 2.42      
15 B2 1376 1357 4.78      
16 B2 1031 1017 24.60      
17 B2 925 912 105.87      
18 B2 492 485 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 13030.6 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 12852.0 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 PBEPBE/6-31G**
ABC
0.67244 0.24333 0.19259

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.386
O2 0.000 0.000 1.598
C3 0.000 0.787 -0.867
C4 0.000 -0.787 -0.867
H5 0.919 1.298 -1.174
H6 -0.919 1.298 -1.174
H7 -0.919 -1.298 -1.174
H8 0.919 -1.298 -1.174

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21221.47991.47992.22852.22852.22852.2285
O21.21222.58812.58813.19663.19663.19663.1966
C31.47992.58811.57401.09601.09602.29972.2997
C41.47992.58811.57402.29972.29971.09601.0960
H52.22853.19661.09602.29971.83873.18202.5969
H62.22853.19661.09602.29971.83872.59693.1820
H72.22853.19662.29971.09603.18202.59691.8387
H82.22853.19662.29971.09602.59693.18201.8387

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.874 C1 C3 H5 119.042
C1 C3 H6 119.042 C1 C4 C3 57.874
C1 C4 H7 119.042 C1 C4 H8 119.042
O2 C1 C3 147.874 O2 C1 C4 147.874
C3 C1 C4 64.251 C3 C4 H7 117.819
C3 C4 H8 117.819 C4 C3 H5 117.819
C4 C3 H6 117.819 H5 C3 H6 114.042
H7 C4 H8 114.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.359      
2 O -0.368      
3 C -0.314      
4 C -0.314      
5 H 0.159      
6 H 0.159      
7 H 0.159      
8 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.669 2.669
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.138 0.000 0.000
y 0.000 -22.491 0.000
z 0.000 0.000 -27.223
Traceless
 xyz
x 3.719 0.000 0.000
y 0.000 1.690 0.000
z 0.000 0.000 -5.408
Polar
3z2-r2-10.817
x2-y21.353
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.811 0.000 0.000
y 0.000 4.943 0.000
z 0.000 0.000 5.562


<r2> (average value of r2) Å2
<r2> 68.180
(<r2>)1/2 8.257