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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: wB97X-D/SDD

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/SDD
 hartrees
Energy at 0K-116.549374
Energy at 298.15K-116.552605
HF Energy-116.549374
Nuclear repulsion energy62.943228
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/SDD
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 3389 3389 0.01 116.77 0.12 0.21
2 A1 3122 3122 65.83 126.84 0.16 0.28
3 A1 1713 1713 15.77 54.04 0.15 0.27
4 A1 1541 1541 0.02 11.66 0.34 0.51
5 A1 1152 1152 0.05 20.73 0.19 0.32
6 A1 940 940 10.72 6.85 0.62 0.77
7 A2 1021 1021 0.00 14.78 0.75 0.86
8 A2 890 890 0.00 1.97 0.75 0.86
9 B1 3216 3216 57.69 67.71 0.75 0.86
10 B1 1108 1108 0.85 1.96 0.75 0.86
11 B1 644 644 138.63 0.23 0.75 0.86
12 B2 3334 3334 0.69 61.87 0.75 0.86
13 B2 1118 1118 42.79 0.20 0.75 0.86
14 B2 1067 1067 45.58 0.05 0.75 0.86
15 B2 767 767 20.22 19.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12510.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12510.1 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/SDD
ABC
0.98597 0.70427 0.44764

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.883
C2 0.000 0.657 -0.512
C3 0.000 -0.657 -0.512
H4 0.000 1.584 -1.054
H5 0.000 -1.584 -1.054
H6 0.915 0.000 1.474
H7 -0.915 0.000 1.474

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.54181.54182.50302.50301.08921.0892
C21.54181.31341.07492.30592.28302.2830
C31.54181.31342.30591.07492.28302.2830
H42.50301.07492.30593.16883.12123.1212
H52.50302.30591.07493.16883.12123.1212
H61.08922.28302.28303.12123.12121.8299
H71.08922.28302.28303.12123.12121.8299

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.789 C1 C2 H4 145.546
C1 C3 C2 64.789 C1 C3 H5 145.546
C2 C1 C3 50.421 C2 C1 H6 119.399
C2 C1 H7 119.399 C2 C3 H5 149.665
C3 C1 H6 119.399 C3 C1 H7 119.399
C3 C2 H4 149.665 H6 C1 H7 114.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.431      
2 C -0.236      
3 C -0.236      
4 H 0.246      
5 H 0.246      
6 H 0.205      
7 H 0.205      


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 -0.360 0.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.309 0.000 0.000
y 0.000 -16.714 0.000
z 0.000 0.000 -17.878
Traceless
 xyz
x -2.013 0.000 0.000
y 0.000 1.879 0.000
z 0.000 0.000 0.133
Polar
3z2-r20.267
x2-y2-2.594
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.624 0.000 0.000
y 0.000 4.819 0.000
z 0.000 0.000 4.837


<r2> (average value of r2) Å2
<r2> 37.485
(<r2>)1/2 6.122