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: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-233.316593
Energy at 298.15K-233.324963
Nuclear repulsion energy219.570942
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*
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 3057 2936 0.00      
2 Ag 1774 1704 0.00      
3 Ag 1515 1455 0.00      
4 Ag 1222 1174 0.00      
5 Ag 877 842 0.00      
6 Ag 674 647 0.00      
7 Au 3089 2967 0.00      
8 Au 1158 1112 0.00      
9 Au 1015 974 0.00      
10 Au 217 209 0.00      
11 B1g 3047 2926 0.00      
12 B1g 1498 1438 0.00      
13 B1g 1301 1249 0.00      
14 B1g 1158 1112 0.00      
15 B1g 804 772 0.00      
16 B1u 3104 2981 128.67      
17 B1u 1100 1057 1.33      
18 B1u 831 798 0.01      
19 B1u 100 96 12.05      
20 B2g 3104 2981 0.00      
21 B2g 1059 1017 0.00      
22 B2g 764 733 0.00      
23 B2u 3050 2929 105.23      
24 B2u 1501 1441 0.38      
25 B2u 1235 1186 16.04      
26 B2u 919 883 0.87      
27 B2u 412 396 5.05      
28 B3g 3091 2969 0.00      
29 B3g 1179 1132 0.00      
30 B3g 1072 1029 0.00      
31 B3g 411 394 0.00      
32 B3u 3051 2930 171.38      
33 B3u 1515 1455 7.44      
34 B3u 1268 1217 1.38      
35 B3u 1217 1168 0.17      
36 B3u 818 785 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 26602.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 25546.4 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 B3LYP/6-31G*
ABC
0.27861 0.11277 0.08548

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.660 0.000
C2 0.000 -0.660 0.000
C3 1.524 -0.803 0.000
C4 1.524 0.803 0.000
C5 -1.524 0.803 0.000
C6 -1.524 -0.803 0.000
H7 -1.978 -1.256 0.890
H8 -1.978 -1.256 -0.890
H9 -1.978 1.256 0.890
H10 -1.978 1.256 -0.890
H11 1.978 -1.256 0.890
H12 1.978 -1.256 -0.890
H13 1.978 1.256 0.890
H14 1.978 1.256 -0.890

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.31912.11271.53121.53122.11272.89372.89372.24972.24972.89372.89372.24972.2497
C21.31911.53122.11272.11271.53122.24972.24972.89372.89372.24972.24972.89372.8937
C32.11271.53121.60643.44623.04893.64223.64224.15934.15931.09681.09682.28842.2884
C41.53122.11271.60643.04893.44624.15934.15933.64223.64222.28842.28841.09681.0968
C51.53122.11273.44623.04891.60642.28842.28841.09681.09684.15934.15933.64223.6422
C62.11271.53123.04893.44621.60641.09681.09682.28842.28843.64223.64224.15934.1593
H72.89372.24973.64224.15932.28841.09681.78042.51103.07823.95654.33864.68605.0129
H82.89372.24973.64224.15932.28841.09681.78043.07822.51104.33863.95655.01294.6860
H92.24972.89374.15933.64221.09682.28842.51103.07821.78044.68605.01293.95654.3386
H102.24972.89374.15933.64221.09682.28843.07822.51101.78045.01294.68604.33863.9565
H112.89372.24971.09682.28844.15933.64223.95654.33864.68605.01291.78042.51103.0782
H122.89372.24971.09682.28844.15933.64224.33863.95655.01294.68601.78043.07822.5110
H132.24972.89372.28841.09683.64224.15934.68605.01293.95654.33862.51103.07821.7804
H142.24972.89372.28841.09683.64224.15935.01294.68604.33863.95653.07822.51101.7804

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 95.382 C1 C2 C6 95.382
C1 C4 C3 84.618 C1 C4 H13 116.783
C1 C4 H14 116.783 C1 C5 C6 84.618
C1 C5 H9 116.783 C1 C5 H10 116.783
C2 C1 C4 95.382 C2 C1 C5 95.382
C2 C3 C4 84.618 C2 C3 H11 116.783
C2 C3 H12 116.783 C2 C6 C5 84.618
C2 C6 H7 116.783 C2 C6 H8 116.783
C3 C2 C6 169.235 C3 C4 H13 114.355
C3 C4 H14 114.355 C4 C1 C5 169.235
C4 C3 H11 114.355 C4 C3 H12 114.355
C5 C6 H7 114.355 C5 C6 H8 114.355
C6 C5 H9 114.355 C6 C5 H10 114.355
H7 C6 H8 108.511 H9 C5 H10 108.511
H11 C3 H12 108.511 H13 C4 H14 108.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.110 -0.039   -0.158
2 C 0.110 0.028   0.073
3 C -0.343 0.028   0.073
4 C -0.343 -0.039   -0.158
5 C -0.343 0.028   0.073
6 C -0.343 0.028   0.073
7 H 0.144 -0.039   -0.162
8 H 0.144 0.028   0.074
9 H 0.144 0.028   0.074
10 H 0.144 -0.035   0.026
11 H 0.144 -0.035   0.026
12 H 0.144 -0.039   -0.161
13 H 0.144 0.028   0.074
14 H 0.144 0.028   0.074


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 0.000 0.000
CHELPG 0.000 0.000 0.002 0.002
AIM        
ESP 0.004 0.000 0.002 0.004


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.103 0.000 0.000
y 0.000 -36.988 0.000
z 0.000 0.000 -36.154
Traceless
 xyz
x 1.468 0.000 0.000
y 0.000 -1.360 0.000
z 0.000 0.000 -0.108
Polar
3z2-r2-0.216
x2-y21.885
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.804 0.000 0.000
y 0.000 8.677 0.000
z 0.000 0.000 6.650


<r2> (average value of r2) Å2
<r2> 149.265
(<r2>)1/2 12.217