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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-191.809569
Energy at 298.15K-191.813684
HF Energy-191.809569
Nuclear repulsion energy108.934965
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 B1B95/6-31G**
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 3149 3007 1.12      
2 A1 1993 1903 297.12      
3 A1 1440 1375 4.55      
4 A1 1086 1037 0.35      
5 A1 1031 984 29.45      
6 A1 755 721 4.83      
7 A2 3232 3086 0.00      
8 A2 1169 1116 0.00      
9 A2 621 593 0.00      
10 B1 3244 3097 1.69      
11 B1 1105 1055 0.52      
12 B1 705 673 1.89      
13 B1 320 305 4.77      
14 B2 3149 3006 1.74      
15 B2 1419 1355 5.63      
16 B2 1084 1035 29.42      
17 B2 973 929 105.31      
18 B2 512 489 2.07      

Unscaled Zero Point Vibrational Energy (zpe) 13492.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 12883.0 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 B1B95/6-31G**
ABC
0.68542 0.24833 0.19655

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.383
O2 0.000 0.000 1.582
C3 0.000 0.779 -0.859
C4 0.000 -0.779 -0.859
H5 0.913 1.285 -1.161
H6 -0.913 1.285 -1.161
H7 -0.913 -1.285 -1.161
H8 0.913 -1.285 -1.161

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.19891.46591.46592.20612.20612.20612.2061
O21.19892.56192.56193.16323.16323.16323.1632
C31.46592.56191.55901.08601.08602.27722.2772
C41.46592.56191.55902.27722.27721.08601.0860
H52.20613.16321.08602.27721.82513.15182.5697
H62.20613.16321.08602.27721.82512.56973.1518
H72.20613.16322.27721.08603.15182.56971.8251
H82.20613.16322.27721.08602.56973.15181.8251

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.877 C1 C3 H5 118.892
C1 C3 H6 118.892 C1 C4 C3 57.877
C1 C4 H7 118.892 C1 C4 H8 118.892
O2 C1 C3 147.877 O2 C1 C4 147.877
C3 C1 C4 64.246 C3 C4 H7 117.729
C3 C4 H8 117.729 C4 C3 H5 117.729
C4 C3 H6 117.729 H5 C3 H6 114.333
H7 C4 H8 114.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.389      
2 O -0.396      
3 C -0.325      
4 C -0.325      
5 H 0.164      
6 H 0.164      
7 H 0.164      
8 H 0.164      


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 -2.793 2.793
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.003 0.000 0.000
y 0.000 -22.360 0.000
z 0.000 0.000 -27.355
Traceless
 xyz
x 3.854 0.000 0.000
y 0.000 1.819 0.000
z 0.000 0.000 -5.673
Polar
3z2-r2-11.347
x2-y21.357
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.714 0.000 0.000
y 0.000 4.767 0.000
z 0.000 0.000 5.362


<r2> (average value of r2) Å2
<r2> 67.083
(<r2>)1/2 8.190