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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-116.582862
Energy at 298.15K-116.586081
HF Energy-116.582862
Nuclear repulsion energy63.579334
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 wB97X-D/cc-pVDZ
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 3333 3175 0.22 140.39 0.13 0.23
2 A1 3059 2914 62.46 145.75 0.15 0.26
3 A1 1759 1675 13.08 43.41 0.19 0.32
4 A1 1500 1429 1.98 13.73 0.33 0.49
5 A1 1167 1111 0.48 12.00 0.21 0.34
6 A1 913 870 4.66 7.36 0.65 0.79
7 A2 1010 962 0.00 11.57 0.75 0.86
8 A2 876 835 0.00 0.11 0.75 0.86
9 B1 3136 2988 45.59 101.04 0.75 0.86
10 B1 1098 1046 1.66 2.83 0.75 0.86
11 B1 610 581 71.29 0.96 0.75 0.86
12 B2 3284 3129 0.75 72.78 0.75 0.86
13 B2 1067 1016 36.78 0.02 0.75 0.86
14 B2 1034 985 20.13 0.05 0.75 0.86
15 B2 806 768 18.49 19.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12326.1 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 11741.9 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 wB97X-D/cc-pVDZ
ABC
0.99976 0.72554 0.45960

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.864
C2 0.000 0.648 -0.502
C3 0.000 -0.648 -0.502
H4 0.000 1.585 -1.048
H5 0.000 -1.585 -1.048
H6 0.921 0.000 1.466
H7 -0.921 0.000 1.466

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51191.51192.48362.48361.09971.0997
C21.51191.29661.08452.29942.26672.2667
C31.51191.29662.29941.08452.26672.2667
H42.48361.08452.29943.17083.11083.1108
H52.48362.29941.08453.17083.11083.1108
H61.09972.26672.26673.11083.11081.8414
H71.09972.26672.26673.11083.11081.8414

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.609 C1 C2 H4 145.612
C1 C3 C2 64.609 C1 C3 H5 145.612
C2 C1 C3 50.782 C2 C1 H6 119.607
C2 C1 H7 119.607 C2 C3 H5 149.779
C3 C1 H6 119.607 C3 C1 H7 119.607
C3 C2 H4 149.779 H6 C1 H7 113.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 C -0.046      
3 C -0.046      
4 H 0.022      
5 H 0.022      
6 H 0.040      
7 H 0.040      


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 -0.523 0.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.204 0.000 0.000
y 0.000 -16.601 0.000
z 0.000 0.000 -18.297
Traceless
 xyz
x -1.755 0.000 0.000
y 0.000 2.149 0.000
z 0.000 0.000 -0.394
Polar
3z2-r2-0.788
x2-y2-2.603
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.961 0.000 0.000
y 0.000 4.868 0.000
z 0.000 0.000 4.949


<r2> (average value of r2) Å2
<r2> 37.021
(<r2>)1/2 6.084