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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-155.743850
Energy at 298.15K-155.749469
HF Energy-155.743850
Nuclear repulsion energy108.612629
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 PBEPBEultrafine/6-31G*
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 3081 3030 14.51      
2 A1 3055 3004 14.24      
3 A1 1809 1779 4.35      
4 A1 1461 1437 0.01      
5 A1 1422 1398 0.13      
6 A1 1063 1046 2.09      
7 A1 1008 991 5.37      
8 A1 744 732 3.85      
9 A2 3122 3071 0.00      
10 A2 1141 1122 0.00      
11 A2 937 922 0.00      
12 A2 598 588 0.00      
13 B1 3135 3083 18.67      
14 B1 1070 1052 0.22      
15 B1 867 853 38.90      
16 B1 737 725 1.53      
17 B1 277 272 2.59      
18 B2 3160 3108 14.54      
19 B2 3055 3004 16.92      
20 B2 1427 1403 0.91      
21 B2 1120 1102 7.84      
22 B2 1034 1017 3.21      
23 B2 891 877 11.41      
24 B2 340 335 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 18276.0 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 17974.5 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 PBEPBEultrafine/6-31G*
ABC
0.64588 0.22609 0.17962

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.649
C2 0.000 0.000 0.318
H3 0.000 0.934 2.221
H4 0.000 -0.934 2.221
C5 0.000 0.771 -0.938
C6 0.000 -0.771 -0.938
H7 0.919 1.285 -1.247
H8 -0.919 1.285 -1.247
H9 -0.919 -1.285 -1.247
H10 0.919 -1.285 -1.247

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.33091.09591.09592.69922.69923.29883.29883.29883.2988
C21.33092.12042.12041.47371.47372.22392.22392.22392.2239
H31.09592.12041.86883.16353.59033.60523.60524.21924.2192
H41.09592.12041.86883.59033.16354.21924.21923.60523.6052
C52.69921.47373.16353.59031.54251.09741.09742.27372.2737
C62.69921.47373.59033.16351.54252.27372.27371.09741.0974
H73.29882.22393.60524.21921.09742.27371.83773.16022.5710
H83.29882.22393.60524.21921.09742.27371.83772.57103.1602
H93.29882.22394.21923.60522.27371.09743.16022.57101.8377
H103.29882.22394.21923.60522.27371.09742.57103.16021.8377

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.445 C1 C2 C6 148.445
C2 C1 H3 121.501 C2 C1 H4 121.501
C2 C5 C6 58.445 C2 C5 H7 119.027
C2 C5 H8 119.027 C2 C6 C5 58.445
C2 C6 H9 119.027 C2 C6 H10 119.027
H3 C1 H4 116.998 C5 C2 C6 63.110
C5 C6 H9 117.944 C5 C6 H10 117.944
C6 C5 H7 117.944 C6 C5 H8 117.944
H7 C5 H8 113.714 H9 C6 H10 113.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.463      
2 C 0.220      
3 H 0.150      
4 H 0.150      
5 C -0.380      
6 C -0.380      
7 H 0.176      
8 H 0.176      
9 H 0.176      
10 H 0.176      


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 -0.433 0.433
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.850 0.000 0.000
y 0.000 -23.882 0.006
z 0.000 0.006 -24.233
Traceless
 xyz
x -0.792 0.000 0.000
y 0.000 0.660 0.006
z 0.000 0.006 0.132
Polar
3z2-r20.265
x2-y2-0.968
xy0.000
xz0.000
yz0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.044 0.000 0.000
y 0.000 5.933 0.004
z 0.000 0.004 8.400


<r2> (average value of r2) Å2
<r2> 77.624
(<r2>)1/2 8.810