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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-191.650979
Energy at 298.15K-191.654968
HF Energy-191.650979
Nuclear repulsion energy107.826581
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 PBEPBEultrafine/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 3062 3012 0.65      
2 A1 1901 1870 266.69      
3 A1 1406 1383 5.66      
4 A1 1047 1030 0.77      
5 A1 992 975 32.83      
6 A1 724 712 3.15      
7 A2 3137 3086 0.00      
8 A2 1140 1121 0.00      
9 A2 605 595 0.00      
10 B1 3151 3099 2.92      
11 B1 1074 1056 0.47      
12 B1 690 678 2.39      
13 B1 295 290 3.58      
14 B2 3063 3012 3.11      
15 B2 1391 1368 4.89      
16 B2 1035 1018 22.58      
17 B2 929 913 108.04      
18 B2 492 484 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 13066.3 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 12850.7 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 PBEPBEultrafine/6-31G*
ABC
0.67268 0.24312 0.19248

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/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 0.786 -0.867
C4 0.000 -0.786 -0.867
H5 0.920 1.299 -1.175
H6 -0.920 1.299 -1.175
H7 -0.920 -1.299 -1.175
H8 0.920 -1.299 -1.175

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21231.48031.48032.23032.23032.23032.2303
O21.21232.58882.58883.19873.19873.19873.1987
C31.48032.58881.57301.09711.09712.30022.3002
C41.48032.58881.57302.30022.30021.09711.0971
H52.23033.19871.09712.30021.83933.18362.5986
H62.23033.19871.09712.30021.83932.59863.1836
H72.23033.19872.30021.09713.18362.59861.8393
H82.23033.19872.30021.09712.59863.18361.8393

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.907 C1 C3 H5 119.092
C1 C3 H6 119.092 C1 C4 C3 57.907
C1 C4 H7 119.092 C1 C4 H8 119.092
O2 C1 C3 147.907 O2 C1 C4 147.907
C3 C1 C4 64.186 C3 C4 H7 117.867
C3 C4 H8 117.867 C4 C3 H5 117.867
C4 C3 H6 117.867 H5 C3 H6 113.915
H7 C4 H8 113.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/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 -2.666 2.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.118 0.000 0.000
y 0.000 -22.516 -0.004
z 0.000 -0.004 -27.263
Traceless
 xyz
x 3.771 0.000 0.000
y 0.000 1.674 -0.004
z 0.000 -0.004 -5.446
Polar
3z2-r2-10.892
x2-y21.398
xy0.000
xz0.000
yz-0.004


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 -0.006
z 0.000 -0.006 5.524


<r2> (average value of r2) Å2
<r2> 68.225
(<r2>)1/2 8.260