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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: PBEPBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-191.722753
Energy at 298.15K-191.726732
HF Energy-191.722753
Nuclear repulsion energy108.346357
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/cc-pVTZ
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 3045 3024 0.73      
2 A1 1879 1866 308.45      
3 A1 1374 1364 5.97      
4 A1 1035 1028 2.53      
5 A1 967 960 28.78      
6 A1 716 711 2.47      
7 A2 3121 3099 0.00      
8 A2 1125 1117 0.00      
9 A2 591 587 0.00      
10 B1 3134 3113 1.53      
11 B1 1060 1053 0.07      
12 B1 677 672 1.56      
13 B1 287 285 2.95      
14 B2 3045 3024 2.64      
15 B2 1360 1350 6.45      
16 B2 1018 1011 20.05      
17 B2 914 908 102.75      
18 B2 494 490 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 12919.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 12830.5 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/cc-pVTZ
ABC
0.67462 0.24632 0.19458

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.384
O2 0.000 0.000 1.588
C3 0.000 0.787 -0.862
C4 0.000 -0.787 -0.862
H5 0.918 1.294 -1.167
H6 -0.918 1.294 -1.167
H7 -0.918 -1.294 -1.167
H8 0.918 -1.294 -1.167

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20451.47301.47302.21792.21792.21792.2179
O21.20452.57312.57313.17883.17883.17883.1788
C31.47302.57311.57311.09201.09202.29392.2939
C41.47302.57311.57312.29392.29391.09201.0920
H52.21793.17881.09202.29391.83563.17222.5871
H62.21793.17881.09202.29391.83562.58713.1722
H72.21793.17882.29391.09203.17222.58711.8356
H82.21793.17882.29391.09202.58713.17221.8356

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.726 C1 C3 H5 118.949
C1 C3 H6 118.949 C1 C4 C3 57.726
C1 C4 H7 118.949 C1 C4 H8 118.949
O2 C1 C3 147.726 O2 C1 C4 147.726
C3 C1 C4 64.547 C3 C4 H7 117.667
C3 C4 H8 117.667 C4 C3 H5 117.667
C4 C3 H6 117.667 H5 C3 H6 114.384
H7 C4 H8 114.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.196      
2 O -0.195      
3 C -0.223      
4 C -0.223      
5 H 0.111      
6 H 0.111      
7 H 0.111      
8 H 0.111      


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 -2.749 2.749
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.601 0.000 0.000
y 0.000 -23.086 0.000
z 0.000 0.000 -27.883
Traceless
 xyz
x 3.883 0.000 0.000
y 0.000 1.656 0.000
z 0.000 0.000 -5.539
Polar
3z2-r2-11.078
x2-y21.485
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.332 0.000 0.000
y 0.000 5.670 0.000
z 0.000 0.000 6.349


<r2> (average value of r2) Å2
<r2> 68.013
(<r2>)1/2 8.247