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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: wB97X-D/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-116.627686
Energy at 298.15K-116.630925
HF Energy-116.627686
Nuclear repulsion energy64.114467
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/cc-pVQZ
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 3320 3320 0.34 135.81 0.13 0.23
2 A1 3064 3064 67.10 144.80 0.13 0.23
3 A1 1753 1753 16.53 54.22 0.10 0.19
4 A1 1529 1529 1.20 11.75 0.22 0.36
5 A1 1159 1159 0.14 15.38 0.12 0.21
6 A1 925 925 4.87 4.77 0.58 0.74
7 A2 1025 1025 0.00 4.67 0.75 0.86
8 A2 890 890 0.00 0.32 0.75 0.86
9 B1 3132 3132 39.61 97.91 0.75 0.86
10 B1 1118 1118 1.90 0.48 0.75 0.86
11 B1 611 611 84.63 0.29 0.75 0.86
12 B2 3274 3274 0.77 71.29 0.75 0.86
13 B2 1084 1084 24.47 0.02 0.75 0.86
14 B2 1054 1054 34.21 0.03 0.75 0.86
15 B2 811 811 18.99 14.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12374.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12374.4 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/cc-pVQZ
ABC
1.02100 0.73442 0.46675

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.641 -0.499
C3 0.000 -0.641 -0.499
H4 0.000 1.569 -1.040
H5 0.000 -1.569 -1.040
H6 0.911 0.000 1.453
H7 -0.911 0.000 1.453

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50311.50312.46402.46401.08731.0873
C21.50311.28301.07342.27552.24812.2481
C31.50311.28302.27551.07342.24812.2481
H42.46401.07342.27553.13763.08343.0834
H52.46402.27551.07343.13763.08343.0834
H61.08732.24812.24813.08343.08341.8226
H71.08732.24812.24813.08343.08341.8226

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.738 C1 C2 H4 145.509
C1 C3 C2 64.738 C1 C3 H5 145.509
C2 C1 C3 50.525 C2 C1 H6 119.558
C2 C1 H7 119.558 C2 C3 H5 149.754
C3 C1 H6 119.558 C3 C1 H7 119.558
C3 C2 H4 149.754 H6 C1 H7 113.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.006      
2 C -0.102      
3 C -0.102      
4 H 0.100      
5 H 0.100      
6 H -0.002      
7 H -0.002      


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 -0.501 0.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.335 0.000 0.000
y 0.000 -16.682 0.000
z 0.000 0.000 -18.441
Traceless
 xyz
x -1.773 0.000 0.000
y 0.000 2.206 0.000
z 0.000 0.000 -0.433
Polar
3z2-r2-0.865
x2-y2-2.653
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.851 0.000 0.000
y 0.000 5.306 0.000
z 0.000 0.000 5.448


<r2> (average value of r2) Å2
<r2> 36.676
(<r2>)1/2 6.056