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All results from a given calculation for C6H8 (Bicyclo[2.1.1]hex-2-ene)

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-37.494194
Energy at 298.15K-37.504026
Nuclear repulsion energy121.043058
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 HF/CEP-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 3426 3077 18.99      
2 A1 3308 2971 101.93      
3 A1 3303 2966 15.26      
4 A1 3243 2912 66.54      
5 A1 1771 1591 8.04      
6 A1 1662 1493 0.02      
7 A1 1411 1267 0.14      
8 A1 1232 1106 1.48      
9 A1 1153 1035 0.04      
10 A1 1071 962 0.00      
11 A1 1028 923 0.46      
12 A1 916 822 2.48      
13 A1 569 511 0.16      
14 A2 1351 1213 0.00      
15 A2 1242 1115 0.00      
16 A2 1156 1038 0.00      
17 A2 1025 920 0.00      
18 A2 920 826 0.00      
19 A2 569 511 0.00      
20 B1 3300 2963 48.75      
21 B1 3230 2900 91.87      
22 B1 1626 1460 0.00      
23 B1 1365 1226 0.00      
24 B1 1086 975 6.61      
25 B1 898 806 11.93      
26 B1 781 701 64.26      
27 B1 495 444 11.88      
28 B2 3397 3050 12.47      
29 B2 3295 2959 141.58      
30 B2 1468 1318 13.58      
31 B2 1377 1236 9.67      
32 B2 1362 1223 0.29      
33 B2 1203 1080 5.14      
34 B2 988 887 0.22      
35 B2 918 824 10.34      
36 B2 783 703 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 28963.2 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 26009.0 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 HF/CEP-31G*
ABC
0.19463 0.15614 0.14291

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.672 1.233
C2 0.000 -0.672 1.233
C3 0.000 -1.023 -0.267
C4 0.000 1.023 -0.267
C5 1.064 0.000 -0.792
C6 -1.064 0.000 -0.792
H7 0.000 1.362 2.061
H8 0.000 -1.362 2.061
H9 0.000 -2.070 -0.556
H10 0.000 2.070 -0.556
H11 2.045 0.000 -0.321
H12 -2.045 0.000 -0.321
H13 -1.159 0.000 -1.880
H14 1.159 0.000 -1.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.34302.26251.54002.38382.38381.07852.19583.27332.27032.65472.65473.38833.3883
C21.34301.54002.26252.38382.38382.19581.07852.27033.27332.65472.65473.38833.3883
C32.26251.54002.04561.56661.56663.33262.35251.08643.10632.28742.28742.23402.2340
C41.54002.26252.04561.56661.56662.35253.33263.10631.08642.28742.28742.23402.2340
C52.38382.38381.56661.56662.12813.33593.33592.33952.33951.08863.14492.47461.0919
C62.38382.38381.56661.56662.12813.33593.33592.33952.33953.14491.08861.09192.4746
H71.07852.19583.33262.35253.33593.33592.72394.31592.71103.42233.42234.32774.3277
H82.19581.07852.35253.33263.33593.33592.72392.71104.31593.42233.42234.32774.3277
H93.27332.27031.08643.10632.33952.33954.31592.71104.14012.91952.91952.71682.7168
H102.27033.27333.10631.08642.33952.33952.71104.31594.14012.91952.91952.71682.7168
H112.65472.65472.28742.28741.08863.14493.42233.42232.91952.91954.09073.56311.7935
H122.65472.65472.28742.28743.14491.08863.42233.42232.91952.91954.09071.79353.5631
H133.38833.38832.23402.23402.47461.09194.32774.32772.71682.71683.56311.79352.3173
H143.38833.38832.23402.23401.09192.47464.32774.32772.71682.71681.79353.56312.3173

picture of Bicyclo[2.1.1]hex-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 103.186 C1 C2 H8 129.807
C1 C4 C5 100.228 C1 C4 C6 100.228
C1 C4 H10 118.609 C2 C1 C4 103.186
C2 C1 H7 129.807 C2 C3 C5 100.228
C2 C3 C6 100.228 C2 C3 H9 118.609
C3 C2 H8 127.008 C3 C5 C4 81.516
C3 C5 H11 117.847 C3 C5 H14 113.136
C3 C6 C4 81.516 C3 C6 H12 117.847
C3 C6 H13 113.136 C4 C1 H7 127.008
C4 C5 H11 117.847 C4 C5 H14 113.136
C4 C6 H12 117.847 C4 C6 H13 113.136
C5 C3 C6 85.563 C5 C3 H9 122.695
C5 C4 C6 85.563 C5 C4 H10 122.695
C6 C3 H9 122.695 C6 C4 H10 122.695
H11 C5 H14 110.681 H12 C6 H13 110.681
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.371      
2 C -0.371      
3 C 0.011      
4 C 0.011      
5 C -0.424      
6 C -0.424      
7 H 0.289      
8 H 0.289      
9 H 0.221      
10 H 0.221      
11 H 0.166      
12 H 0.166      
13 H 0.108      
14 H 0.108      


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 -0.349 0.349
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.692 0.000 0.000
y 0.000 -35.321 0.000
z 0.000 0.000 -36.028
Traceless
 xyz
x -3.018 0.000 0.000
y 0.000 2.039 0.000
z 0.000 0.000 0.979
Polar
3z2-r21.958
x2-y2-3.371
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.426 0.000 0.000
y 0.000 8.889 0.000
z 0.000 0.000 8.319


<r2> (average value of r2) Å2
<r2> 101.407
(<r2>)1/2 10.070