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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-191.897072
Energy at 298.15K-191.901182
HF Energy-191.897072
Nuclear repulsion energy108.751782
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 B3LYP/6-31G(2df,p)
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 3117 3008 0.47      
2 A1 1959 1890 291.20      
3 A1 1432 1382 3.92      
4 A1 1057 1020 1.73      
5 A1 1024 988 20.59      
6 A1 731 705 2.98      
7 A2 3196 3084 0.00      
8 A2 1167 1126 0.00      
9 A2 628 606 0.00      
10 B1 3209 3097 2.54      
11 B1 1107 1068 0.21      
12 B1 702 677 0.98      
13 B1 327 315 4.62      
14 B2 3117 3008 2.92      
15 B2 1418 1368 3.62      
16 B2 1067 1030 15.27      
17 B2 946 913 106.38      
18 B2 512 494 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 13356.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12889.3 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 B3LYP/6-31G(2df,p)
ABC
0.67794 0.24829 0.19593

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.386
O2 0.000 0.000 1.581
C3 0.000 0.785 -0.859
C4 0.000 -0.785 -0.859
H5 0.913 1.290 -1.162
H6 -0.913 1.290 -1.162
H7 -0.913 -1.290 -1.162
H8 0.913 -1.290 -1.162

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.19461.47211.47212.21262.21262.21262.2126
O21.19462.56302.56303.16573.16573.16573.1657
C31.47212.56301.57021.08661.08662.28752.2875
C41.47212.56301.57022.28752.28751.08661.0866
H52.21263.16571.08662.28751.82613.16142.5806
H62.21263.16571.08662.28751.82612.58063.1614
H72.21263.16572.28751.08663.16142.58061.8261
H82.21263.16572.28751.08662.58063.16141.8261

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.769 C1 C3 H5 118.935
C1 C3 H6 118.935 C1 C4 C3 57.769
C1 C4 H7 118.935 C1 C4 H8 118.935
O2 C1 C3 147.769 O2 C1 C4 147.769
C3 C1 C4 64.463 C3 C4 H7 117.706
C3 C4 H8 117.706 C4 C3 H5 117.706
C4 C3 H6 117.706 H5 C3 H6 114.344
H7 C4 H8 114.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.440      
2 O -0.268      
3 C -0.376      
4 C -0.376      
5 H 0.145      
6 H 0.145      
7 H 0.145      
8 H 0.145      


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 -2.691 2.691
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.139 0.000 0.000
y 0.000 -22.564 0.000
z 0.000 0.000 -27.497
Traceless
 xyz
x 3.891 0.000 0.000
y 0.000 1.754 0.000
z 0.000 0.000 -5.645
Polar
3z2-r2-11.290
x2-y21.425
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.923 0.000 0.000
y 0.000 5.000 0.000
z 0.000 0.000 5.525


<r2> (average value of r2) Å2
<r2> 67.357
(<r2>)1/2 8.207