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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-155.785758
Energy at 298.15K-155.791386
Nuclear repulsion energy108.867313
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 PBEPBE/6-311G**
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 3059 3032 14.05      
2 A1 3039 3011 14.05      
3 A1 1794 1778 8.08      
4 A1 1429 1416 0.01      
5 A1 1391 1378 1.17      
6 A1 1050 1041 2.85      
7 A1 989 980 6.75      
8 A1 736 730 4.22      
9 A2 3109 3081 0.00      
10 A2 1126 1116 0.00      
11 A2 924 916 0.00      
12 A2 593 588 0.00      
13 B1 3122 3094 16.84      
14 B1 1055 1046 1.20      
15 B1 868 861 39.45      
16 B1 730 723 2.17      
17 B1 274 271 4.95      
18 B2 3141 3113 13.23      
19 B2 3038 3011 17.13      
20 B2 1395 1382 2.77      
21 B2 1104 1094 7.44      
22 B2 1021 1012 2.66      
23 B2 881 873 13.30      
24 B2 345 342 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 18107.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 17942.8 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 PBEPBE/6-311G**
ABC
0.64647 0.22763 0.18062

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.643
C2 0.000 0.000 0.317
H3 0.000 0.934 2.211
H4 0.000 -0.934 2.211
C5 0.000 0.772 -0.935
C6 0.000 -0.772 -0.935
H7 0.918 1.282 -1.241
H8 -0.918 1.282 -1.241
H9 -0.918 -1.282 -1.241
H10 0.918 -1.282 -1.241

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32671.09341.09342.69152.69153.28723.28723.28723.2872
C21.32672.11262.11261.47051.47052.21642.21642.21642.2164
H31.09342.11261.86853.15063.57923.58943.58944.20394.2039
H41.09342.11261.86853.57923.15064.20394.20393.58943.5894
C52.69151.47053.15063.57921.54361.09411.09412.27012.2701
C62.69151.47053.57923.15061.54362.27012.27011.09411.0941
H73.28722.21643.58944.20391.09412.27011.83693.15332.5630
H83.28722.21643.58944.20391.09412.27011.83692.56303.1533
H93.28722.21644.20393.58942.27011.09413.15332.56301.8369
H103.28722.21644.20393.58942.27011.09412.56303.15331.8369

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.343 C1 C2 C6 148.343
C2 C1 H3 121.299 C2 C1 H4 121.299
C2 C5 C6 58.343 C2 C5 H7 118.853
C2 C5 H8 118.853 C2 C6 C5 58.343
C2 C6 H9 118.853 C2 C6 H10 118.853
H3 C1 H4 117.402 C5 C2 C6 63.314
C5 C6 H9 117.768 C5 C6 H10 117.768
C6 C5 H7 117.768 C6 C5 H8 117.768
H7 C5 H8 114.172 H9 C6 H10 114.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.239      
2 C -0.056      
3 H 0.111      
4 H 0.111      
5 C -0.248      
6 C -0.248      
7 H 0.142      
8 H 0.142      
9 H 0.142      
10 H 0.142      


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 -0.436 0.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.397 0.000 0.000
y 0.000 -24.406 0.000
z 0.000 0.000 -24.658
Traceless
 xyz
x -0.865 0.000 0.000
y 0.000 0.621 0.000
z 0.000 0.000 0.244
Polar
3z2-r20.488
x2-y2-0.991
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.633 0.000 0.000
y 0.000 6.427 0.000
z 0.000 0.000 9.055


<r2> (average value of r2) Å2
<r2> 77.578
(<r2>)1/2 8.808