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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-115.062306
Energy at 298.15K-115.065546
HF Energy-115.062306
Nuclear repulsion energy63.450349
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/STO-3G
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 3610 3188 11.70 57.07 0.14 0.24
2 A1 3372 2978 2.50 38.75 0.16 0.27
3 A1 1904 1681 1.27 17.85 0.16 0.27
4 A1 1679 1483 3.02 14.74 0.58 0.73
5 A1 1360 1201 1.06 6.55 0.20 0.34
6 A1 1016 897 0.00 13.87 0.70 0.82
7 A2 1124 993 0.00 11.20 0.75 0.86
8 A2 940 830 0.00 0.03 0.75 0.86
9 B1 3508 3098 7.77 33.71 0.75 0.86
10 B1 1195 1055 6.46 1.66 0.75 0.86
11 B1 696 615 41.09 1.12 0.75 0.86
12 B2 3537 3124 56.93 34.98 0.75 0.86
13 B2 1229 1085 49.55 0.01 0.75 0.86
14 B2 1176 1038 2.45 0.00 0.75 0.86
15 B2 931 823 3.36 14.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13638.1 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 12043.8 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/STO-3G
ABC
0.99047 0.72671 0.45777

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.862
C2 0.000 0.652 -0.501
C3 0.000 -0.652 -0.501
H4 0.000 1.594 -1.048
H5 0.000 -1.594 -1.048
H6 0.917 0.000 1.469
H7 -0.917 0.000 1.469

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51141.51142.48812.48811.09991.0999
C21.51141.30411.08912.31152.26932.2693
C31.51141.30412.31151.08912.26932.2693
H42.48811.08912.31153.18743.11773.1177
H52.48812.31151.08913.18743.11773.1177
H61.09992.26932.26933.11773.11771.8344
H71.09992.26932.26933.11773.11771.8344

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.442 C1 C2 H4 145.719
C1 C3 C2 64.442 C1 C3 H5 145.719
C2 C1 C3 51.117 C2 C1 H6 119.861
C2 C1 H7 119.861 C2 C3 H5 149.840
C3 C1 H6 119.861 C3 C1 H7 119.861
C3 C2 H4 149.840 H6 C1 H7 113.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.149      
2 C -0.100      
3 C -0.100      
4 H 0.106      
5 H 0.106      
6 H 0.069      
7 H 0.069      


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 -0.455 0.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.602 0.000 0.000
y 0.000 -15.926 0.000
z 0.000 0.000 -17.129
Traceless
 xyz
x -1.074 0.000 0.000
y 0.000 1.440 0.000
z 0.000 0.000 -0.365
Polar
3z2-r2-0.730
x2-y2-1.676
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.180 0.000 0.000
y 0.000 2.615 0.000
z 0.000 0.000 2.369


<r2> (average value of r2) Å2
<r2> 36.403
(<r2>)1/2 6.033