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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-233.203095
Energy at 298.15K-233.197662
HF Energy-233.382631
Nuclear repulsion energy230.732560
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 B3LYP/6-31G(2df,p)
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 3248 3134 11.73      
2 A1 3120 3011 11.77      
3 A1 3118 3008 39.15      
4 A1 3050 2943 42.12      
5 A1 1627 1570 1.37      
6 A1 1513 1460 0.02      
7 A1 1274 1229 1.13      
8 A1 1145 1105 0.84      
9 A1 1066 1029 0.15      
10 A1 996 961 0.03      
11 A1 949 916 0.02      
12 A1 853 823 1.48      
13 A1 526 507 0.42      
14 A2 1226 1183 0.00      
15 A2 1108 1069 0.00      
16 A2 1066 1029 0.00      
17 A2 914 882 0.00      
18 A2 838 808 0.00      
19 A2 536 517 0.00      
20 B1 3112 3004 35.72      
21 B1 3039 2933 57.58      
22 B1 1479 1427 0.34      
23 B1 1235 1192 0.56      
24 B1 1004 969 1.98      
25 B1 825 796 3.77      
26 B1 700 675 32.34      
27 B1 452 436 5.03      
28 B2 3220 3107 5.82      
29 B2 3117 3008 88.66      
30 B2 1333 1287 12.06      
31 B2 1257 1213 0.92      
32 B2 1227 1184 5.78      
33 B2 1107 1068 3.81      
34 B2 911 879 0.41      
35 B2 848 818 5.87      
36 B2 730 704 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 26881.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25941.0 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 B3LYP/6-31G(2df,p)
ABC
0.19461 0.15611 0.14320

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.668 1.215
C2 0.000 -0.668 1.215
C3 0.000 -1.022 -0.280
C4 0.000 1.022 -0.280
C5 1.066 0.000 -0.809
C6 -1.066 0.000 -0.809
H7 0.000 1.367 2.039
H8 0.000 -1.367 2.039
H9 0.000 -2.072 -0.570
H10 0.000 2.072 -0.570
H11 2.046 0.000 -0.327
H12 -2.046 0.000 -0.327
H13 -1.164 0.000 -1.900
H14 1.164 0.000 -1.900

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.33552.25611.53652.38342.38341.08062.19533.27032.27172.64832.64833.39203.3920
C21.33551.53652.25612.38342.38342.19531.08062.27173.27032.64832.64833.39203.3920
C32.25611.53652.04361.56861.56863.32932.34451.08973.10742.28792.28792.24152.2415
C41.53652.25612.04361.56861.56862.34453.32933.10741.08972.28792.28792.24152.2415
C52.38342.38341.56861.56862.13193.33433.33432.34232.34231.09263.14952.48271.0951
C62.38342.38341.56861.56862.13193.33433.33432.34232.34233.14951.09261.09512.4827
H71.08062.19533.32932.34453.33433.33432.73434.31702.70293.41413.41414.32894.3289
H82.19531.08062.34453.32933.33433.33432.73432.70294.31703.41413.41414.32894.3289
H93.27032.27171.08973.10742.34232.34234.31702.70294.14402.92242.92242.72332.7233
H102.27173.27033.10741.08972.34232.34232.70294.31704.14402.92242.92242.72332.7233
H112.64832.64832.28792.28791.09263.14953.41413.41412.92242.92244.09303.57531.8032
H122.64832.64832.28792.28793.14951.09263.41413.41412.92242.92244.09301.80323.5753
H133.39203.39202.24152.24152.48271.09514.32894.32892.72332.72333.57531.80322.3287
H143.39203.39202.24152.24151.09512.48274.32894.32892.72332.72331.80323.57532.3287

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 103.312 C1 C2 H8 130.294
C1 C4 C5 100.185 C1 C4 C6 100.185
C1 C4 H10 118.773 C2 C1 C4 103.312
C2 C1 H7 130.294 C2 C3 C5 100.185
C2 C3 C6 100.185 C2 C3 H9 118.773
C3 C2 H8 126.394 C3 C5 C4 81.377
C3 C5 H11 117.581 C3 C5 H14 113.375
C3 C6 C4 81.377 C3 C6 H12 117.581
C3 C6 H13 113.375 C4 C1 H7 126.394
C4 C5 H11 117.581 C4 C5 H14 113.375
C4 C6 H12 117.581 C4 C6 H13 113.375
C5 C3 C6 85.652 C5 C3 H9 122.601
C5 C4 C6 85.652 C5 C4 H10 122.601
C6 C3 H9 122.601 C6 C4 H10 122.601
H11 C5 H14 110.818 H12 C6 H13 110.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.077      
2 C -0.077      
3 C -0.059      
4 C -0.059      
5 C -0.200      
6 C -0.200      
7 H 0.096      
8 H 0.096      
9 H 0.058      
10 H 0.058      
11 H 0.091      
12 H 0.091      
13 H 0.090      
14 H 0.090      


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 -0.153 0.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 120.471
(<r2>)1/2 10.976