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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-191.730671
Energy at 298.15K-191.734642
HF Energy-191.730671
Nuclear repulsion energy108.374782
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/Def2TZVPP
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 3048 3011 0.90      
2 A1 1874 1852 318.15      
3 A1 1375 1358 5.89      
4 A1 1035 1023 2.33      
5 A1 967 955 27.98      
6 A1 716 708 2.43      
7 A2 3125 3087 0.00      
8 A2 1125 1111 0.00      
9 A2 594 587 0.00      
10 B1 3139 3101 1.18      
11 B1 1061 1048 0.06      
12 B1 678 669 1.51      
13 B1 288 284 3.17      
14 B2 3048 3011 2.52      
15 B2 1360 1344 6.88      
16 B2 1019 1007 18.47      
17 B2 915 904 98.60      
18 B2 492 487 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 12929.8 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 12773.4 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 PBEPBE/Def2TZVPP
ABC
0.67466 0.24653 0.19472

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.409
O2 0.000 0.000 1.683
C3 0.000 0.803 -0.843
C4 0.000 -0.803 -0.843
H5 0.809 0.725 -1.450
H6 -0.809 0.725 -1.450
H7 -0.809 -0.725 -1.450
H8 0.809 -0.725 -1.450

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.27391.48711.48712.15352.15352.15352.1535
O21.27392.65032.65033.31613.31613.31613.3161
C31.48712.65031.60511.01481.01481.83241.8324
C41.48712.65031.60511.83241.83241.01481.0148
H52.15353.31611.01481.83241.61882.17351.4504
H62.15353.31611.01481.83241.61881.45042.1735
H72.15353.31611.83241.01482.17351.45041.6188
H82.15353.31611.83241.01481.45042.17351.6188

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.338 C1 C3 H5 117.555
C1 C3 H6 117.555 C1 C4 C3 57.338
C1 C4 H7 117.555 C1 C4 H8 117.555
O2 C1 C3 147.338 O2 C1 C4 147.338
C3 C1 C4 65.324 C3 C4 H7 85.628
C3 C4 H8 85.628 C4 C3 H5 85.628
C4 C3 H6 85.628 H5 C3 H6 105.803
H7 C4 H8 105.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.127      
2 O -0.206      
3 C -0.135      
4 C -0.135      
5 H 0.087      
6 H 0.087      
7 H 0.087      
8 H 0.087      


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 -2.830 2.830
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.656 0.000 0.000
y 0.000 -23.146 0.000
z 0.000 0.000 -28.119
Traceless
 xyz
x 3.976 0.000 0.000
y 0.000 1.741 0.000
z 0.000 0.000 -5.718
Polar
3z2-r2-11.435
x2-y21.490
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.427 0.000 0.000
y 0.000 5.862 0.000
z 0.000 0.000 6.608


<r2> (average value of r2) Å2
<r2> 68.054
(<r2>)1/2 8.249