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[2.2.0]hex-1(4)-ene)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-232.389787
Energy at 298.15K-232.398379
HF Energy-231.718449
Nuclear repulsion energy220.978990
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 CISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3182 2946 0.00      
2 Ag 1884 1744 0.00      
3 Ag 1593 1475 0.00      
4 Ag 1300 1204 0.00      
5 Ag 937 868 0.00      
6 Ag 719 665 0.00      
7 Au 3218 2980 0.00      
8 Au 1224 1133 0.00      
9 Au 1063 984 0.00      
10 Au 224 208 0.00      
11 B1g 3170 2935 0.00      
12 B1g 1571 1454 0.00      
13 B1g 1384 1282 0.00      
14 B1g 1223 1133 0.00      
15 B1g 842 780 0.00      
16 B1u 3233 2993 119.12      
17 B1u 1159 1073 2.46      
18 B1u 873 808 0.02      
19 B1u 112 103 14.49      
20 B2g 3234 2994 0.00      
21 B2g 1112 1030 0.00      
22 B2g 803 744 0.00      
23 B2u 3172 2937 94.89      
24 B2u 1573 1456 0.14      
25 B2u 1307 1210 18.20      
26 B2u 977 904 0.96      
27 B2u 425 393 6.32      
28 B3g 3220 2981 0.00      
29 B3g 1241 1149 0.00      
30 B3g 1125 1041 0.00      
31 B3g 400 370 0.00      
32 B3u 3176 2940 143.67      
33 B3u 1592 1474 6.21      
34 B3u 1347 1247 4.22      
35 B3u 1291 1195 0.05      
36 B3u 882 816 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 27893.5 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 25823.8 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 CISD/6-31G*
ABC
0.28301 0.11396 0.08652

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.654 0.000
C2 0.000 -0.654 0.000
C3 1.517 -0.797 0.000
C4 1.517 0.797 0.000
C5 -1.517 0.797 0.000
C6 -1.517 -0.797 0.000
H7 -1.965 -1.247 0.885
H8 -1.965 -1.247 -0.885
H9 -1.965 1.247 0.885
H10 -1.965 1.247 -0.885
H11 1.965 -1.247 0.885
H12 1.965 -1.247 -0.885
H13 1.965 1.247 0.885
H14 1.965 1.247 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.30782.09881.52371.52372.09882.87372.87372.23552.23552.87372.87372.23552.2355
C21.30781.52372.09882.09881.52372.23552.23552.87372.87372.23552.23552.87372.8737
C32.09881.52371.59313.42683.03403.62123.62124.13344.13341.08961.08962.27132.2713
C41.52372.09881.59313.03403.42684.13344.13343.62123.62122.27132.27131.08961.0896
C51.52372.09883.42683.03401.59312.27132.27131.08961.08964.13344.13343.62123.6212
C62.09881.52373.03403.42681.59311.08961.08962.27132.27133.62123.62124.13344.1334
H72.87372.23553.62124.13342.27131.08961.77042.49303.05773.93084.31114.65474.9801
H82.87372.23553.62124.13342.27131.08961.77043.05772.49304.31113.93084.98014.6547
H92.23552.87374.13343.62121.08962.27132.49303.05771.77044.65474.98013.93084.3111
H102.23552.87374.13343.62121.08962.27133.05772.49301.77044.98014.65474.31113.9308
H112.87372.23551.08962.27134.13343.62123.93084.31114.65474.98011.77042.49303.0577
H122.87372.23551.08962.27134.13343.62124.31113.93084.98014.65471.77043.05772.4930
H132.23552.87372.27131.08963.62124.13344.65474.98013.93084.31112.49303.05771.7704
H142.23552.87372.27131.08963.62124.13344.98014.65474.31113.93083.05772.49301.7704

picture of Bicyclo[2.2.0]hex-1(4)-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 95.372 C1 C2 C6 95.372
C1 C4 C3 84.628 C1 C4 H13 116.643
C1 C4 H14 116.643 C1 C5 C6 84.628
C1 C5 H9 116.643 C1 C5 H10 116.643
C2 C1 C4 95.372 C2 C1 C5 95.372
C2 C3 C4 84.628 C2 C3 H11 116.643
C2 C3 H12 116.643 C2 C6 C5 84.628
C2 C6 H7 116.643 C2 C6 H8 116.643
C3 C2 C6 169.256 C3 C4 H13 114.391
C3 C4 H14 114.391 C4 C1 C5 169.256
C4 C3 H11 114.391 C4 C3 H12 114.391
C5 C6 H7 114.391 C5 C6 H8 114.391
C6 C5 H9 114.391 C6 C5 H10 114.391
H7 C6 H8 108.672 H9 C5 H10 108.672
H11 C3 H12 108.672 H13 C4 H14 108.672
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability