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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: wB97X-D/TZVP

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/TZVP
 hartrees
Energy at 0K-116.616161
Energy at 298.15K-116.619399
HF Energy-116.616161
Nuclear repulsion energy64.031612
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/TZVP
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 3330 3180 0.46 126.96 0.13 0.23
2 A1 3068 2930 65.37 142.32 0.16 0.28
3 A1 1759 1679 16.80 53.64 0.11 0.20
4 A1 1533 1464 1.85 12.33 0.26 0.42
5 A1 1160 1107 0.16 14.19 0.15 0.27
6 A1 927 885 5.35 5.05 0.51 0.68
7 A2 1025 979 0.00 8.82 0.75 0.86
8 A2 885 845 0.00 0.01 0.75 0.86
9 B1 3137 2996 42.18 96.09 0.75 0.86
10 B1 1119 1069 2.02 0.98 0.75 0.86
11 B1 613 586 97.29 0.61 0.75 0.86
12 B2 3283 3135 1.40 69.16 0.75 0.86
13 B2 1086 1037 28.74 1.32 0.75 0.86
14 B2 1052 1004 35.27 0.00 0.75 0.86
15 B2 807 770 20.75 16.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12391.0 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 11833.4 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/TZVP
ABC
1.01804 0.73280 0.46560

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.861
C2 0.000 0.642 -0.500
C3 0.000 -0.642 -0.500
H4 0.000 1.572 -1.040
H5 0.000 -1.572 -1.040
H6 0.913 0.000 1.456
H7 -0.913 0.000 1.456

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50471.50472.46692.46691.08921.0892
C21.50471.28471.07512.27902.25142.2514
C31.50471.28472.27901.07512.25142.2514
H42.46691.07512.27903.14313.08763.0876
H52.46692.27901.07513.14313.08763.0876
H61.08922.25142.25143.08763.08761.8252
H71.08922.25142.25143.08763.08761.8252

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.731 C1 C2 H4 145.467
C1 C3 C2 64.731 C1 C3 H5 145.467
C2 C1 C3 50.539 C2 C1 H6 119.583
C2 C1 H7 119.583 C2 C3 H5 149.802
C3 C1 H6 119.583 C3 C1 H7 119.583
C3 C2 H4 149.802 H6 C1 H7 113.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.249      
2 C -0.141      
3 C -0.141      
4 H 0.151      
5 H 0.151      
6 H 0.115      
7 H 0.115      


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 -0.491 0.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.370 0.000 0.000
y 0.000 -16.785 0.000
z 0.000 0.000 -18.424
Traceless
 xyz
x -1.766 0.000 0.000
y 0.000 2.112 0.000
z 0.000 0.000 -0.347
Polar
3z2-r2-0.694
x2-y2-2.585
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.525 0.000 0.000
y 0.000 5.173 0.000
z 0.000 0.000 5.386


<r2> (average value of r2) Å2
<r2> 36.767
(<r2>)1/2 6.064