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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-35.160362
Energy at 298.15K-35.164473
HF Energy-35.160362
Nuclear repulsion energy56.943344
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 B1B95/CEP-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 3167 3033 0.18      
2 A1 1883 1803 262.31      
3 A1 1445 1383 7.04      
4 A1 1069 1024 0.09      
5 A1 1056 1011 44.77      
6 A1 726 695 9.83      
7 A2 3258 3119 0.00      
8 A2 1153 1104 0.00      
9 A2 678 649 0.00      
10 B1 3274 3135 17.89      
11 B1 1102 1055 1.68      
12 B1 709 679 7.39      
13 B1 313 299 4.54      
14 B2 3162 3028 4.10      
15 B2 1421 1361 16.19      
16 B2 1102 1055 1.98      
17 B2 1010 967 148.27      
18 B2 485 464 2.25      

Unscaled Zero Point Vibrational Energy (zpe) 13505.4 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 12931.4 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 B1B95/CEP-31G
ABC
0.65893 0.23632 0.18708

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.388
O2 0.000 0.000 1.624
C3 0.000 0.798 -0.882
C4 0.000 -0.798 -0.882
H5 0.919 1.306 -1.186
H6 -0.919 1.306 -1.186
H7 -0.919 -1.306 -1.186
H8 0.919 -1.306 -1.186

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.23561.50021.50022.24282.24282.24282.2428
O21.23562.62982.62983.23223.23223.23223.2322
C31.50022.62981.59681.09331.09332.31672.3167
C41.50022.62981.59682.31672.31671.09331.0933
H52.24283.23221.09332.31671.83803.19452.6127
H62.24283.23221.09332.31671.83802.61273.1945
H72.24283.23222.31671.09333.19452.61271.8380
H82.24283.23222.31671.09332.61273.19451.8380

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.846 C1 C3 H5 118.879
C1 C3 H6 118.879 C1 C4 C3 57.846
C1 C4 H7 118.879 C1 C4 H8 118.879
O2 C1 C3 147.846 O2 C1 C4 147.846
C3 C1 C4 64.307 C3 C4 H7 117.686
C3 C4 H8 117.686 C4 C3 H5 117.686
C4 C3 H6 117.686 H5 C3 H6 114.408
H7 C4 H8 114.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.082      
2 O -0.011      
3 C -0.346      
4 C -0.346      
5 H 0.196      
6 H 0.196      
7 H 0.196      
8 H 0.196      


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 -3.283 3.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.079 0.000 0.000
y 0.000 -22.617 0.000
z 0.000 0.000 -29.052
Traceless
 xyz
x 4.756 0.000 0.000
y 0.000 2.449 0.000
z 0.000 0.000 -7.204
Polar
3z2-r2-14.408
x2-y21.538
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.353 0.000 0.000
y 0.000 4.817 0.000
z 0.000 0.000 5.836


<r2> (average value of r2) Å2
<r2> 58.723
(<r2>)1/2 7.663