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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: wB97X-D/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 wB97X-D/6-31G
 hartrees
Energy at 0K-116.540944
Energy at 298.15K-116.544204
HF Energy-116.540944
Nuclear repulsion energy63.408512
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/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 3384 3384 0.09 124.63 0.12 0.21
2 A1 3111 3111 49.63 124.36 0.16 0.27
3 A1 1746 1746 10.51 35.85 0.21 0.35
4 A1 1568 1568 1.32 16.65 0.30 0.47
5 A1 1170 1170 0.14 8.96 0.21 0.34
6 A1 946 946 5.72 8.90 0.63 0.77
7 A2 1036 1036 0.00 19.16 0.75 0.86
8 A2 900 900 0.00 0.07 0.75 0.86
9 B1 3187 3187 55.31 86.99 0.75 0.86
10 B1 1135 1135 1.83 3.81 0.75 0.86
11 B1 643 643 108.12 1.30 0.75 0.86
12 B2 3332 3332 0.22 65.90 0.75 0.86
13 B2 1131 1131 30.68 0.47 0.75 0.86
14 B2 1081 1081 43.19 0.17 0.75 0.86
15 B2 784 784 14.41 19.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12576.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12576.7 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/6-31G
ABC
1.00038 0.71600 0.45512

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.873
C2 0.000 0.651 -0.507
C3 0.000 -0.651 -0.507
H4 0.000 1.577 -1.048
H5 0.000 -1.577 -1.048
H6 0.912 0.000 1.469
H7 -0.912 0.000 1.469

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.52591.52592.48632.48631.08951.0895
C21.52591.30121.07352.29292.27152.2715
C31.52591.30122.29291.07352.27152.2715
H42.48631.07352.29293.15493.10783.1078
H52.48632.29291.07353.15493.10783.1078
H61.08952.27152.27153.10783.10781.8246
H71.08952.27152.27153.10783.10781.8246

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.763 C1 C2 H4 145.536
C1 C3 C2 64.763 C1 C3 H5 145.536
C2 C1 C3 50.475 C2 C1 H6 119.638
C2 C1 H7 119.638 C2 C3 H5 149.702
C3 C1 H6 119.638 C3 C1 H7 119.638
C3 C2 H4 149.702 H6 C1 H7 113.719
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.350      
2 C -0.160      
3 C -0.160      
4 H 0.183      
5 H 0.183      
6 H 0.153      
7 H 0.153      


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 -0.488 0.488
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.121 0.000 0.000
y 0.000 -16.706 0.000
z 0.000 0.000 -17.943
Traceless
 xyz
x -1.797 0.000 0.000
y 0.000 1.826 0.000
z 0.000 0.000 -0.029
Polar
3z2-r2-0.058
x2-y2-2.415
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.609 0.000 0.000
y 0.000 4.589 0.000
z 0.000 0.000 4.696


<r2> (average value of r2) Å2
<r2> 37.089
(<r2>)1/2 6.090