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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-232.019936
Energy at 298.15K-232.029448
Nuclear repulsion energy229.429441
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 B3PW91/3-21G*
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 3282 3148 8.34      
2 A1 3185 3056 5.93      
3 A1 3168 3039 26.28      
4 A1 3084 2959 34.91      
5 A1 1620 1554 0.33      
6 A1 1533 1471 0.92      
7 A1 1275 1223 5.16      
8 A1 1151 1104 1.94      
9 A1 1074 1031 0.03      
10 A1 1008 967 0.09      
11 A1 951 912 0.20      
12 A1 870 835 0.99      
13 A1 519 498 0.74      
14 A2 1251 1200 0.00      
15 A2 1123 1078 0.00      
16 A2 1090 1046 0.00      
17 A2 959 921 0.00      
18 A2 849 814 0.00      
19 A2 541 519 0.00      
20 B1 3163 3035 24.78      
21 B1 3075 2950 36.70      
22 B1 1505 1443 2.23      
23 B1 1236 1186 3.45      
24 B1 1003 962 5.80      
25 B1 831 797 8.12      
26 B1 724 694 55.64      
27 B1 470 451 9.39      
28 B2 3251 3119 3.52      
29 B2 3180 3051 52.80      
30 B2 1335 1281 21.63      
31 B2 1284 1232 0.33      
32 B2 1227 1177 12.78      
33 B2 1134 1088 3.16      
34 B2 920 883 0.01      
35 B2 841 807 7.91      
36 B2 741 711 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 27225.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 26120.4 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 B3PW91/3-21G*
ABC
0.19115 0.15484 0.14201

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 1.217
C2 0.000 -0.671 1.217
C3 0.000 -1.035 -0.287
C4 0.000 1.035 -0.287
C5 1.079 0.000 -0.808
C6 -1.079 0.000 -0.808
H7 0.000 1.364 2.045
H8 0.000 -1.364 2.045
H9 0.000 -2.083 -0.578
H10 0.000 2.083 -0.578
H11 2.045 0.000 -0.298
H12 -2.045 0.000 -0.298
H13 -1.179 0.000 -1.900
H14 1.179 0.000 -1.900

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.34172.27391.54682.39032.39031.08042.19703.28662.28322.63162.63163.39863.3986
C21.34171.54682.27392.39032.39032.19701.08042.28323.28662.63162.63163.39863.3986
C32.27391.54682.07041.58361.58363.34582.35521.08733.13162.29212.29212.25012.2501
C41.54682.27392.07041.58361.58362.35523.34583.13161.08732.29212.29212.25012.2501
C52.39032.39031.58361.58362.15823.34173.34172.35702.35701.09243.16552.50811.0961
C62.39032.39031.58361.58362.15823.34173.34172.35702.35703.16551.09241.09612.5081
H71.08042.19703.34582.35523.34173.34172.72774.33132.71983.39603.39604.33744.3374
H82.19701.08042.35523.34583.34173.34172.72772.71984.33133.39603.39604.33744.3374
H93.28662.28321.08733.13162.35702.35704.33132.71984.16572.93232.93232.73422.7342
H102.28323.28663.13161.08732.35702.35702.71984.33134.16572.93232.93232.73422.7342
H112.63162.63162.29212.29211.09243.16553.39603.39602.93232.93234.09003.59991.8209
H122.63162.63162.29212.29213.16551.09243.39603.39602.93232.93234.09001.82093.5999
H133.39863.39862.25012.25012.50811.09614.33744.33742.73422.73423.59991.82092.3580
H143.39863.39862.25012.25011.09612.50814.33744.33742.73422.73421.82093.59992.3580

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 103.624 C1 C2 H8 129.899
C1 C4 C5 99.552 C1 C4 C6 99.552
C1 C4 H10 119.142 C2 C1 C4 103.624
C2 C1 H7 129.899 C2 C3 C5 99.552
C2 C3 C6 99.552 C2 C3 H9 119.142
C3 C2 H8 126.477 C3 C5 C4 81.642
C3 C5 H11 116.664 C3 C5 H14 112.950
C3 C6 C4 81.642 C3 C6 H12 116.664
C3 C6 H13 112.950 C4 C1 H7 126.477
C4 C5 H11 116.664 C4 C5 H14 112.950
C4 C6 H12 116.664 C4 C6 H13 112.950
C5 C3 C6 85.908 C5 C3 H9 122.806
C5 C4 C6 85.908 C5 C4 H10 122.806
C6 C3 H9 122.806 C6 C4 H10 122.806
H11 C5 H14 112.615 H12 C6 H13 112.615
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.134      
2 C -0.134      
3 C -0.397      
4 C -0.397      
5 C -0.280      
6 C -0.280      
7 H 0.205      
8 H 0.205      
9 H 0.185      
10 H 0.185      
11 H 0.214      
12 H 0.214      
13 H 0.207      
14 H 0.207      


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 -0.204 0.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.186 0.000 0.000
y 0.000 -35.139 0.000
z 0.000 0.000 -35.264
Traceless
 xyz
x -2.985 0.000 0.000
y 0.000 1.586 0.000
z 0.000 0.000 1.399
Polar
3z2-r22.798
x2-y2-3.047
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 121.392
(<r2>)1/2 11.018