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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-191.650978
Energy at 298.15K-191.654966
HF Energy-191.650978
Nuclear repulsion energy107.814875
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 3063 3019 0.65      
2 A1 1902 1874 266.71      
3 A1 1406 1386 5.66      
4 A1 1047 1032 0.81      
5 A1 991 977 32.81      
6 A1 724 713 3.12      
7 A2 3138 3093 0.00      
8 A2 1140 1124 0.00      
9 A2 606 597 0.00      
10 B1 3151 3106 2.92      
11 B1 1074 1058 0.47      
12 B1 690 680 2.36      
13 B1 295 290 3.58      
14 B2 3063 3019 3.12      
15 B2 1391 1371 4.86      
16 B2 1034 1020 22.13      
17 B2 928 915 108.57      
18 B2 492 485 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 13066.3 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 12879.4 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/6-31G*
ABC
0.67255 0.24305 0.19244

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 0.387
O2 0.000 0.000 1.599
C3 0.000 0.787 -0.868
C4 0.000 -0.787 -0.868
H5 0.920 1.299 -1.176
H6 -0.920 1.299 -1.176
H7 -0.920 -1.299 -1.176
H8 0.920 -1.299 -1.176

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21231.48071.48072.23052.23052.23052.2305
O21.21232.58912.58913.19893.19893.19893.1989
C31.48072.58911.57331.09711.09712.30022.3002
C41.48072.58911.57332.30022.30021.09711.0971
H52.23053.19891.09712.30021.83973.18342.5980
H62.23053.19891.09712.30021.83972.59803.1834
H72.23053.19892.30021.09713.18342.59801.8397
H82.23053.19892.30021.09712.59803.18341.8397

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.908 C1 C3 H5 119.083
C1 C3 H6 119.083 C1 C4 C3 57.908
C1 C4 H7 119.083 C1 C4 H8 119.083
O2 C1 C3 147.908 O2 C1 C4 147.908
C3 C1 C4 64.183 C3 C4 H7 117.841
C3 C4 H8 117.841 C4 C3 H5 117.841
C4 C3 H6 117.841 H5 C3 H6 113.954
H7 C4 H8 113.954
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 0.385      
2 O -0.368      
3 C -0.402      
4 C -0.402      
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 -2.665 2.665
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.117 0.000 0.000
y 0.000 -22.521 0.000
z 0.000 0.000 -27.261
Traceless
 xyz
x 3.774 0.000 0.000
y 0.000 1.668 0.000
z 0.000 0.000 -5.443
Polar
3z2-r2-10.885
x2-y21.404
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.770 0.000 0.000
y 0.000 4.899 0.000
z 0.000 0.000 5.526


<r2> (average value of r2) Å2
<r2> 68.237
(<r2>)1/2 8.261