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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-116.493441
Energy at 298.15K-116.496663
HF Energy-116.493441
Nuclear repulsion energy63.863478
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 HSEh1PBE/6-31+G**
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 3339 3188 0.09 140.21 0.15 0.26
2 A1 3070 2931 69.65 126.06 0.18 0.30
3 A1 1757 1678 15.90 59.90 0.10 0.18
4 A1 1531 1462 3.13 13.03 0.31 0.48
5 A1 1187 1133 0.32 17.41 0.17 0.29
6 A1 931 889 6.62 4.62 0.57 0.73
7 A2 1023 977 0.00 5.65 0.75 0.86
8 A2 859 820 0.00 0.49 0.75 0.86
9 B1 3137 2995 45.75 111.30 0.75 0.86
10 B1 1118 1068 1.12 0.54 0.75 0.86
11 B1 604 576 99.07 0.11 0.75 0.86
12 B2 3292 3143 0.38 79.78 0.75 0.86
13 B2 1086 1037 37.37 0.05 0.75 0.86
14 B2 1038 991 27.27 0.23 0.75 0.86
15 B2 819 782 21.94 16.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12395.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 11834.9 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 HSEh1PBE/6-31+G**
ABC
1.00399 0.73531 0.46376

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.858
C2 0.000 0.648 -0.499
C3 0.000 -0.648 -0.499
H4 0.000 1.582 -1.038
H5 0.000 -1.582 -1.038
H6 0.914 0.000 1.458
H7 -0.914 0.000 1.458

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50331.50332.46902.46901.09331.0933
C21.50331.29511.07862.29362.25482.2548
C31.50331.29512.29361.07862.25482.2548
H42.46901.07862.29363.16383.09303.0930
H52.46902.29361.07863.16383.09303.0930
H61.09332.25482.25483.09303.09301.8277
H71.09332.25482.25483.09303.09301.8277

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.486 C1 C2 H4 145.491
C1 C3 C2 64.486 C1 C3 H5 145.491
C2 C1 C3 51.029 C2 C1 H6 119.698
C2 C1 H7 119.698 C2 C3 H5 150.023
C3 C1 H6 119.698 C3 C1 H7 119.698
C3 C2 H4 150.023 H6 C1 H7 113.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 C -0.147      
3 C -0.147      
4 H 0.161      
5 H 0.161      
6 H 0.148      
7 H 0.148      


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 -0.459 0.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.571 0.000 0.000
y 0.000 -16.854 0.000
z 0.000 0.000 -18.603
Traceless
 xyz
x -1.843 0.000 0.000
y 0.000 2.234 0.000
z 0.000 0.000 -0.391
Polar
3z2-r2-0.781
x2-y2-2.718
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.580 0.000 0.000
y 0.000 5.185 0.000
z 0.000 0.000 5.282


<r2> (average value of r2) Å2
<r2> 36.971
(<r2>)1/2 6.080