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

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-230.490975
Energy at 298.15K-230.500857
Nuclear repulsion energy230.498639
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/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 3441 3105 10.01      
2 A1 3336 3011 8.14      
3 A1 3313 2990 31.52      
4 A1 3241 2926 39.05      
5 A1 1760 1589 0.91      
6 A1 1657 1495 0.37      
7 A1 1390 1255 3.07      
8 A1 1237 1117 0.96      
9 A1 1161 1048 0.03      
10 A1 1070 965 0.26      
11 A1 992 895 0.79      
12 A1 919 829 0.88      
13 A1 568 513 0.61      
14 A2 1370 1237 0.00      
15 A2 1237 1116 0.00      
16 A2 1180 1065 0.00      
17 A2 1115 1006 0.00      
18 A2 890 803 0.00      
19 A2 584 527 0.00      
20 B1 3307 2985 31.31      
21 B1 3231 2916 43.05      
22 B1 1627 1469 0.76      
23 B1 1344 1213 0.71      
24 B1 1085 979 8.20      
25 B1 885 799 36.86      
26 B1 820 740 38.13      
27 B1 517 467 8.31      
28 B2 3408 3076 3.69      
29 B2 3330 3006 63.65      
30 B2 1451 1309 21.30      
31 B2 1399 1263 0.68      
32 B2 1349 1218 8.54      
33 B2 1226 1107 3.85      
34 B2 978 883 0.01      
35 B2 874 789 8.06      
36 B2 786 710 1.84      

Unscaled Zero Point Vibrational Energy (zpe) 29038.8 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 26210.4 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 HF/3-21G*
ABC
0.19330 0.15552 0.14298

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 1.216
C2 0.000 -0.661 1.216
C3 0.000 -1.033 -0.285
C4 0.000 1.033 -0.285
C5 1.075 0.000 -0.809
C6 -1.075 0.000 -0.809
H7 0.000 1.343 2.037
H8 0.000 -1.343 2.037
H9 0.000 -2.070 -0.566
H10 0.000 2.070 -0.566
H11 2.034 0.000 -0.315
H12 -2.034 0.000 -0.315
H13 -1.174 0.000 -1.887
H14 1.174 0.000 -1.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.32272.26361.54662.38672.38671.06742.16633.26102.27132.63062.63063.38343.3834
C21.32271.54662.26362.38672.38672.16631.06742.27133.26102.63062.63063.38343.3834
C32.26361.54662.06511.58011.58013.32252.34331.07453.11512.28142.28142.23852.2385
C41.54662.26362.06511.58011.58012.34333.32253.11511.07452.28142.28142.23852.2385
C52.38672.38671.58011.58012.15003.32633.32632.34512.34511.07913.14822.49371.0825
C62.38672.38671.58011.58012.15003.32633.32632.34512.34513.14821.07911.08252.4937
H71.06742.16633.32252.34333.32633.32632.68654.29242.70253.38773.38774.31124.3112
H82.16631.06742.34333.32253.32633.32632.68652.70254.29243.38773.38774.31124.3112
H93.26102.27131.07453.11512.34512.34514.29242.70254.13972.91292.91292.72192.7219
H102.27133.26103.11511.07452.34512.34512.70254.29244.13972.91292.91292.72192.7219
H112.63062.63062.28142.28141.07913.14823.38773.38772.91292.91294.06843.57251.7925
H122.63062.63062.28142.28143.14821.07913.38773.38772.91292.91294.06841.79253.5725
H133.38343.38342.23852.23852.49371.08254.31124.31122.72192.72193.57251.79252.3473
H143.38343.38342.23852.23851.08252.49374.31124.31122.72192.72191.79253.57252.3473

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 103.887 C1 C2 H8 129.704
C1 C4 C5 99.510 C1 C4 C6 99.510
C1 C4 H10 119.012 C2 C1 C4 103.887
C2 C1 H7 129.704 C2 C3 C5 99.510
C2 C3 C6 99.510 C2 C3 H9 119.012
C3 C2 H8 126.410 C3 C5 C4 81.612
C3 C5 H11 116.921 C3 C5 H14 113.102
C3 C6 C4 81.612 C3 C6 H12 116.921
C3 C6 H13 113.102 C4 C1 H7 126.410
C4 C5 H11 116.921 C4 C5 H14 113.102
C4 C6 H12 116.921 C4 C6 H13 113.102
C5 C3 C6 85.742 C5 C3 H9 122.977
C5 C4 C6 85.742 C5 C4 H10 122.977
C6 C3 H9 122.977 C6 C4 H10 122.977
H11 C5 H14 112.038 H12 C6 H13 112.038
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.164 -0.240    
2 C -0.164 -0.240    
3 C -0.421 0.210    
4 C -0.421 0.210    
5 C -0.259 -0.350    
6 C -0.259 -0.350    
7 H 0.231 0.148    
8 H 0.231 0.148    
9 H 0.197 0.019    
10 H 0.197 0.019    
11 H 0.211 0.105    
12 H 0.211 0.105    
13 H 0.204 0.109    
14 H 0.204 0.109    


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 -0.165 0.165
CHELPG 0.000 0.000 -0.157 0.157
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.069 0.000 0.000
y 0.000 -35.915 0.000
z 0.000 0.000 -36.136
Traceless
 xyz
x -3.044 0.000 0.000
y 0.000 1.687 0.000
z 0.000 0.000 1.356
Polar
3z2-r22.712
x2-y2-3.154
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.459 0.000 0.000
y 0.000 8.220 0.000
z 0.000 0.000 7.951


<r2> (average value of r2) Å2
<r2> 121.106
(<r2>)1/2 11.005