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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B1B95/STO-3G

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/STO-3G
 hartrees
Energy at 0K-189.354486
Energy at 298.15K-189.358576
HF Energy-189.354486
Nuclear repulsion energy106.695876
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/STO-3G
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 3396 2999 11.19      
2 A1 2061 1820 50.31      
3 A1 1577 1393 2.58      
4 A1 1220 1077 4.41      
5 A1 1136 1003 5.16      
6 A1 826 730 1.05      
7 A2 3539 3125 0.00      
8 A2 1265 1117 0.00      
9 A2 744 657 0.00      
10 B1 3545 3130 4.07      
11 B1 1164 1028 0.37      
12 B1 790 698 1.62      
13 B1 362 320 0.80      
14 B2 3391 2995 12.80      
15 B2 1564 1381 2.27      
16 B2 1213 1071 3.76      
17 B2 1027 907 72.75      
18 B2 503 444 6.29      

Unscaled Zero Point Vibrational Energy (zpe) 14662.3 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 12946.8 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/STO-3G
ABC
0.68218 0.23333 0.18697

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.396
O2 0.000 0.000 1.634
C3 0.000 0.781 -0.887
C4 0.000 -0.781 -0.887
H5 0.918 1.288 -1.201
H6 -0.918 1.288 -1.201
H7 -0.918 -1.288 -1.201
H8 0.918 -1.288 -1.201

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.23771.50151.50152.24792.24792.24792.2479
O21.23772.63842.63843.24633.24633.24633.2463
C31.50152.63841.56121.09531.09532.28512.2851
C41.50152.63841.56122.28512.28511.09531.0953
H52.24793.24631.09532.28511.83653.16382.5762
H62.24793.24631.09532.28511.83652.57623.1638
H72.24793.24632.28511.09533.16382.57621.8365
H82.24793.24632.28511.09532.57623.16381.8365

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 58.677 C1 C3 H5 119.085
C1 C3 H6 119.085 C1 C4 C3 58.677
C1 C4 H7 119.085 C1 C4 H8 119.085
O2 C1 C3 148.677 O2 C1 C4 148.677
C3 C1 C4 62.645 C3 C4 H7 117.606
C3 C4 H8 117.606 C4 C3 H5 117.606
C4 C3 H6 117.606 H5 C3 H6 113.938
H7 C4 H8 113.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.149      
2 O -0.150      
3 C -0.192      
4 C -0.192      
5 H 0.096      
6 H 0.096      
7 H 0.096      
8 H 0.096      


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 -1.568 1.568
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.089 0.000 0.000
y 0.000 -21.586 0.000
z 0.000 0.000 -24.640
Traceless
 xyz
x 3.024 0.000 0.000
y 0.000 0.778 0.000
z 0.000 0.000 -3.803
Polar
3z2-r2-7.605
x2-y21.498
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.885 0.000 0.000
y 0.000 2.338 0.000
z 0.000 0.000 3.280


<r2> (average value of r2) Å2
<r2> 68.624
(<r2>)1/2 8.284