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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-155.081223
Energy at 298.15K-155.086854
Nuclear repulsion energy109.333764
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 LSDA/6-31+G**
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 3076 3030 8.11      
2 A1 3056 3010 6.71      
3 A1 1838 1810 13.33      
4 A1 1420 1398 0.02      
5 A1 1376 1355 2.83      
6 A1 1079 1063 3.14      
7 A1 986 971 12.31      
8 A1 757 745 5.08      
9 A2 3133 3086 0.00      
10 A2 1119 1102 0.00      
11 A2 914 901 0.00      
12 A2 587 579 0.00      
13 B1 3144 3097 4.08      
14 B1 1049 1033 0.60      
15 B1 865 852 55.49      
16 B1 730 719 4.79      
17 B1 287 283 4.90      
18 B2 3165 3118 6.50      
19 B2 3056 3010 8.05      
20 B2 1377 1356 5.80      
21 B2 1110 1094 10.70      
22 B2 1023 1008 4.15      
23 B2 889 876 13.82      
24 B2 343 338 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 18189.7 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 17916.8 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 LSDA/6-31+G**
ABC
0.65381 0.22962 0.18252

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.636
C2 0.000 0.000 0.313
H3 0.000 0.937 2.205
H4 0.000 -0.937 2.205
C5 0.000 0.764 -0.930
C6 0.000 -0.764 -0.930
H7 0.921 1.277 -1.236
H8 -0.921 1.277 -1.236
H9 -0.921 -1.277 -1.236
H10 0.921 -1.277 -1.236

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32361.09621.09622.67752.67753.27493.27493.27493.2749
C21.32362.11152.11151.45881.45882.20792.20792.20792.2079
H31.09622.11151.87463.13933.56663.57743.57744.19344.1934
H41.09622.11151.87463.56663.13934.19344.19343.57743.5774
C52.67751.45883.13933.56661.52871.09731.09732.26012.2601
C62.67751.45883.56663.13931.52872.26012.26011.09731.0973
H73.27492.20793.57744.19341.09732.26011.84183.14852.5536
H83.27492.20793.57744.19341.09732.26011.84182.55363.1485
H93.27492.20794.19343.57742.26011.09733.14852.55361.8418
H103.27492.20794.19343.57742.26011.09732.55363.14851.8418

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.400 C1 C2 C6 148.400
C2 C1 H3 121.234 C2 C1 H4 121.234
C2 C5 C6 58.400 C2 C5 H7 118.812
C2 C5 H8 118.812 C2 C6 C5 58.400
C2 C6 H9 118.812 C2 C6 H10 118.812
H3 C1 H4 117.532 C5 C2 C6 63.200
C5 C6 H9 117.840 C5 C6 H10 117.840
C6 C5 H7 117.840 C6 C5 H8 117.840
H7 C5 H8 114.120 H9 C6 H10 114.120
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.111      
2 C -0.227      
3 H 0.162      
4 H 0.162      
5 C -0.385      
6 C -0.385      
7 H 0.196      
8 H 0.196      
9 H 0.196      
10 H 0.196      


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 -0.518 0.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.752 0.000 0.000
y 0.000 -24.483 0.000
z 0.000 0.000 -24.986
Traceless
 xyz
x -1.018 0.000 0.000
y 0.000 0.885 0.000
z 0.000 0.000 0.132
Polar
3z2-r20.265
x2-y2-1.269
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.350 0.000 0.000
y 0.000 6.695 0.000
z 0.000 0.000 9.617


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000