return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-233.414485
Energy at 298.15K-233.423918
HF Energy-233.414485
Nuclear repulsion energy230.960539
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 TPSSh/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 3243 3129 15.11      
2 A1 3117 3008 12.27      
3 A1 3109 3000 47.58      
4 A1 3040 2933 46.89      
5 A1 1624 1568 1.79      
6 A1 1514 1461 0.00      
7 A1 1274 1230 1.25      
8 A1 1144 1104 0.73      
9 A1 1061 1024 0.17      
10 A1 996 961 0.03      
11 A1 957 924 0.00      
12 A1 843 814 1.49      
13 A1 507 490 0.41      
14 A2 1223 1180 0.00      
15 A2 1110 1071 0.00      
16 A2 1068 1031 0.00      
17 A2 910 878 0.00      
18 A2 851 821 0.00      
19 A2 530 512 0.00      
20 B1 3104 2995 38.92      
21 B1 3031 2925 69.01      
22 B1 1480 1428 0.08      
23 B1 1238 1195 0.73      
24 B1 996 962 2.29      
25 B1 833 804 2.89      
26 B1 694 670 35.80      
27 B1 439 423 4.57      
28 B2 3214 3102 8.90      
29 B2 3114 3005 100.28      
30 B2 1336 1289 11.85      
31 B2 1254 1210 1.17      
32 B2 1228 1185 5.94      
33 B2 1107 1069 3.97      
34 B2 915 883 0.38      
35 B2 854 824 6.31      
36 B2 727 702 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 26842.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25902.9 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 TPSSh/6-31G(2df,p)
ABC
0.19513 0.15658 0.14340

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 1.213
C2 0.000 -0.669 1.213
C3 0.000 -1.021 -0.280
C4 0.000 1.021 -0.280
C5 1.063 0.000 -0.808
C6 -1.063 0.000 -0.808
H7 0.000 1.368 2.038
H8 0.000 -1.368 2.038
H9 0.000 -2.071 -0.572
H10 0.000 2.071 -0.572
H11 2.044 0.000 -0.325
H12 -2.044 0.000 -0.325
H13 -1.158 0.000 -1.899
H14 1.158 0.000 -1.899

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.33752.25461.53402.37942.37941.08152.19773.27022.27032.64472.64473.38803.3880
C21.33751.53402.25462.37942.37942.19771.08152.27033.27022.64472.64473.38803.3880
C32.25461.53402.04141.56531.56533.32862.34371.09043.10562.28542.28542.23772.2377
C41.53402.25462.04141.56531.56532.34373.32863.10561.09042.28542.28542.23772.2377
C52.37942.37941.56531.56532.12573.33173.33172.33982.33981.09353.14442.47521.0959
C62.37942.37941.56531.56532.12573.33173.33172.33982.33983.14441.09351.09592.4752
H71.08152.19773.32862.34373.33173.33172.73684.31772.70303.41143.41144.32654.3265
H82.19771.08152.34373.32863.33173.33172.73682.70304.31773.41143.41144.32654.3265
H93.27022.27031.09043.10562.33982.33984.31772.70304.14232.92052.92052.71922.7192
H102.27033.27023.10561.09042.33982.33982.70304.31774.14232.92052.92052.71922.7192
H112.64472.64472.28542.28541.09353.14443.41143.41142.92052.92054.08863.56871.8061
H122.64472.64472.28542.28543.14441.09353.41143.41142.92052.92054.08861.80613.5687
H133.38803.38802.23772.23772.47521.09594.32654.32652.71922.71923.56871.80612.3170
H143.38803.38802.23772.23771.09592.47524.32654.32652.71922.71921.80613.56872.3170

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 103.265 C1 C2 H8 130.310
C1 C4 C5 100.292 C1 C4 C6 100.292
C1 C4 H10 118.814 C2 C1 C4 103.265
C2 C1 H7 130.310 C2 C3 C5 100.292
C2 C3 C6 100.292 C2 C3 H9 118.814
C3 C2 H8 126.425 C3 C5 C4 81.395
C3 C5 H11 117.431 C3 C5 H14 113.281
C3 C6 C4 81.395 C3 C6 H12 117.431
C3 C6 H13 113.281 C4 C1 H7 126.425
C4 C5 H11 117.431 C4 C5 H14 113.281
C4 C6 H12 117.431 C4 C6 H13 113.281
C5 C3 C6 85.532 C5 C3 H9 122.533
C5 C4 C6 85.532 C5 C4 H10 122.533
C6 C3 H9 122.533 C6 C4 H10 122.533
H11 C5 H14 111.162 H12 C6 H13 111.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability