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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: TPSSh/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at TPSSh/6-311G**
 hartrees
Energy at 0K-116.661835
Energy at 298.15K-116.665062
HF Energy-116.661835
Nuclear repulsion energy63.797625
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 TPSSh/6-311G**
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 3293 3293 0.11 151.39 0.15 0.26
2 A1 3031 3031 83.37 149.21 0.16 0.27
3 A1 1726 1726 15.13 41.43 0.18 0.30
4 A1 1528 1528 3.29 15.21 0.24 0.39
5 A1 1167 1167 0.87 10.72 0.18 0.30
6 A1 930 930 4.22 6.08 0.59 0.74
7 A2 1021 1021 0.00 9.34 0.75 0.86
8 A2 867 867 0.00 0.14 0.75 0.86
9 B1 3094 3094 63.42 107.00 0.75 0.86
10 B1 1109 1109 2.01 2.17 0.75 0.86
11 B1 614 614 80.62 0.87 0.75 0.86
12 B2 3246 3246 0.26 83.70 0.75 0.86
13 B2 1071 1071 35.83 0.30 0.75 0.86
14 B2 1034 1034 26.31 0.00 0.75 0.86
15 B2 805 805 16.17 16.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12266.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12266.6 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 TPSSh/6-311G**
ABC
1.00596 0.73056 0.46231

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.862
C2 0.000 0.647 -0.501
C3 0.000 -0.647 -0.501
H4 0.000 1.579 -1.041
H5 0.000 -1.579 -1.041
H6 0.914 0.000 1.459
H7 -0.914 0.000 1.459

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50851.50852.47262.47261.09181.0918
C21.50851.29401.07722.29072.25722.2572
C31.50851.29402.29071.07722.25722.2572
H42.47261.07722.29073.15833.09483.0948
H52.47262.29071.07723.15833.09483.0948
H61.09182.25722.25723.09483.09481.8282
H71.09182.25722.25723.09483.09481.8282

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.602 C1 C2 H4 145.479
C1 C3 C2 64.602 C1 C3 H5 145.479
C2 C1 C3 50.797 C2 C1 H6 119.605
C2 C1 H7 119.605 C2 C3 H5 149.919
C3 C1 H6 119.605 C3 C1 H7 119.605
C3 C2 H4 149.919 H6 C1 H7 113.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C -0.112      
3 C -0.112      
4 H 0.098      
5 H 0.098      
6 H 0.114      
7 H 0.114      


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 -0.490 0.490
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.150 0.000 0.000
y 0.000 4.991 0.000
z 0.000 0.000 5.141


<r2> (average value of r2) Å2
<r2> 36.897
(<r2>)1/2 6.074