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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-116.568050
Energy at 298.15K-116.571305
HF Energy-116.568050
Nuclear repulsion energy63.966815
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 M06-2X/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 3355 3189 0.27 137.84 0.13 0.23
2 A1 3090 2937 60.50 130.64 0.15 0.26
3 A1 1789 1701 10.48 36.24 0.18 0.30
4 A1 1545 1468 4.92 16.07 0.36 0.52
5 A1 1206 1146 0.86 9.44 0.20 0.33
6 A1 939 893 4.02 9.46 0.68 0.81
7 A2 1029 978 0.00 16.78 0.75 0.86
8 A2 888 844 0.00 0.24 0.75 0.86
9 B1 3158 3001 53.44 89.39 0.75 0.86
10 B1 1127 1071 2.10 3.38 0.75 0.86
11 B1 625 594 69.57 1.88 0.75 0.86
12 B2 3308 3144 0.55 72.51 0.75 0.86
13 B2 1090 1036 37.11 0.33 0.75 0.86
14 B2 1049 997 21.00 0.00 0.75 0.86
15 B2 846 804 15.08 19.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12522.6 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 11901.5 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 M06-2X/6-31G**
ABC
1.00777 0.73724 0.46520

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.857
C2 0.000 0.646 -0.499
C3 0.000 -0.646 -0.499
H4 0.000 1.581 -1.034
H5 0.000 -1.581 -1.034
H6 0.912 0.000 1.456
H7 -0.912 0.000 1.456

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50151.50152.46472.46471.09141.0914
C21.50151.29181.07742.29032.25162.2516
C31.50151.29182.29031.07742.25162.2516
H42.46471.07742.29033.16193.08723.0872
H52.46472.29031.07743.16193.08723.0872
H61.09142.25162.25163.08723.08721.8248
H71.09142.25162.25163.08723.08721.8248

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.523 C1 C2 H4 145.267
C1 C3 C2 64.523 C1 C3 H5 145.267
C2 C1 C3 50.954 C2 C1 H6 119.697
C2 C1 H7 119.697 C2 C3 H5 150.210
C3 C1 H6 119.697 C3 C1 H7 119.697
C3 C2 H4 150.210 H6 C1 H7 113.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.272      
2 C -0.109      
3 C -0.109      
4 H 0.134      
5 H 0.134      
6 H 0.112      
7 H 0.112      


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 -0.527 0.527
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.057 0.000 0.000
y 0.000 -16.535 0.000
z 0.000 0.000 -18.183
Traceless
 xyz
x -1.698 0.000 0.000
y 0.000 2.085 0.000
z 0.000 0.000 -0.387
Polar
3z2-r2-0.774
x2-y2-2.522
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.782 0.000 0.000
y 0.000 4.686 0.000
z 0.000 0.000 4.763


<r2> (average value of r2) Å2
<r2> 36.631
(<r2>)1/2 6.052