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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-116.583313
Energy at 298.15K-116.586477
HF Energy-116.583313
Nuclear repulsion energy63.803025
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 B97D3/6-311+G(3df,2p)
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 3235 3193 0.29 153.87 0.14 0.25
2 A1 2974 2935 84.11 139.40 0.14 0.25
3 A1 1695 1673 16.51 60.18 0.07 0.14
4 A1 1495 1476 2.36 11.70 0.23 0.37
5 A1 1134 1119 0.73 17.94 0.12 0.21
6 A1 903 892 4.08 4.63 0.58 0.73
7 A2 999 986 0.00 2.15 0.75 0.86
8 A2 831 821 0.00 0.94 0.75 0.86
9 B1 3033 2994 52.64 116.49 0.75 0.86
10 B1 1095 1080 1.48 0.10 0.75 0.86
11 B1 577 569 80.44 0.02 0.75 0.86
12 B2 3190 3149 0.57 88.49 0.75 0.86
13 B2 1048 1034 26.00 0.24 0.75 0.86
14 B2 1008 994 30.37 0.06 0.75 0.86
15 B2 788 777 15.87 13.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12002.0 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 11846.0 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 B97D3/6-311+G(3df,2p)
ABC
1.00444 0.73220 0.46271

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.647 -0.500
C3 0.000 -0.647 -0.500
H4 0.000 1.581 -1.041
H5 0.000 -1.581 -1.041
H6 0.915 0.000 1.460
H7 -0.915 0.000 1.460

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50621.50622.47282.47281.09381.0938
C21.50621.29471.07932.29322.25732.2573
C31.50621.29472.29321.07932.25732.2573
H42.47281.07932.29323.16213.09693.0969
H52.47282.29321.07933.16213.09693.0969
H61.09382.25732.25733.09693.09691.8297
H71.09382.25732.25733.09693.09691.8297

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.545 C1 C2 H4 145.562
C1 C3 C2 64.545 C1 C3 H5 145.562
C2 C1 C3 50.910 C2 C1 H6 119.663
C2 C1 H7 119.663 C2 C3 H5 149.892
C3 C1 H6 119.663 C3 C1 H7 119.663
C3 C2 H4 149.892 H6 C1 H7 113.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.343      
2 C -0.108      
3 C -0.108      
4 H 0.169      
5 H 0.169      
6 H 0.111      
7 H 0.111      


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 -0.460 0.460
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.581 0.000 0.000
y 0.000 -16.938 0.000
z 0.000 0.000 -18.720
Traceless
 xyz
x -1.752 0.000 0.000
y 0.000 2.213 0.000
z 0.000 0.000 -0.461
Polar
3z2-r2-0.921
x2-y2-2.644
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.197 0.000 0.000
y 0.000 5.579 0.000
z 0.000 0.000 5.730


<r2> (average value of r2) Å2
<r2> 37.069
(<r2>)1/2 6.088