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All results from a given calculation for C3H4O (Cyclopropanone)

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

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/6-31+G**
 hartrees
Energy at 0K-191.666993
Energy at 298.15K-191.670959
HF Energy-191.666993
Nuclear repulsion energy107.823905
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/6-31+G**
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 3057 3022 1.23      
2 A1 1877 1856 339.35      
3 A1 1385 1369 6.28      
4 A1 1039 1027 2.75      
5 A1 976 965 36.14      
6 A1 713 705 3.11      
7 A2 3138 3102 0.00      
8 A2 1124 1112 0.00      
9 A2 605 598 0.00      
10 B1 3150 3114 1.11      
11 B1 1064 1052 0.23      
12 B1 683 676 2.40      
13 B1 282 278 4.22      
14 B2 3057 3023 2.86      
15 B2 1367 1351 7.31      
16 B2 1027 1015 18.81      
17 B2 926 915 101.35      
18 B2 485 480 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 12977.5 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 12829.5 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/6-31+G**
ABC
0.66944 0.24379 0.19267

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.383
O2 0.000 0.000 1.598
C3 0.000 0.789 -0.866
C4 0.000 -0.789 -0.866
H5 0.921 1.300 -1.172
H6 -0.921 1.300 -1.172
H7 -0.921 -1.300 -1.172
H8 0.921 -1.300 -1.172

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21451.47741.47742.22632.22632.22632.2263
O21.21452.58682.58683.19523.19523.19523.1952
C31.47742.58681.57871.09651.09652.30352.3035
C41.47742.58681.57872.30352.30351.09651.0965
H52.22633.19521.09652.30351.84153.18572.5995
H62.22633.19521.09652.30351.84152.59953.1857
H72.22633.19522.30351.09653.18572.59951.8415
H82.22633.19522.30351.09652.59953.18571.8415

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.704 C1 C3 H5 119.013
C1 C3 H6 119.013 C1 C4 C3 57.704
C1 C4 H7 119.013 C1 C4 H8 119.013
O2 C1 C3 147.704 O2 C1 C4 147.704
C3 C1 C4 64.592 C3 C4 H7 117.741
C3 C4 H8 117.741 C4 C3 H5 117.741
C4 C3 H6 117.741 H5 C3 H6 114.227
H7 C4 H8 114.227
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.116      
2 O -0.410      
3 C -0.246      
4 C -0.246      
5 H 0.197      
6 H 0.197      
7 H 0.197      
8 H 0.197      


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 -2.999 2.999
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.688 0.000 0.000
y 0.000 -23.220 0.000
z 0.000 0.000 -28.655
Traceless
 xyz
x 4.250 0.000 0.000
y 0.000 1.951 0.000
z 0.000 0.000 -6.201
Polar
3z2-r2-12.402
x2-y21.532
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.265 0.000 0.000
y 0.000 5.848 0.000
z 0.000 0.000 6.806


<r2> (average value of r2) Å2
<r2> 68.732
(<r2>)1/2 8.290