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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-37.507598
Energy at 298.15K-37.517442
Nuclear repulsion energy121.309898
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/CEP-121G*
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 3398 3070 18.17      
2 A1 3276 2960 15.04      
3 A1 3271 2955 75.72      
4 A1 3206 2897 69.41      
5 A1 1744 1575 5.60      
6 A1 1656 1496 0.18      
7 A1 1403 1267 0.42      
8 A1 1228 1109 1.31      
9 A1 1157 1045 0.11      
10 A1 1067 963 0.02      
11 A1 1016 918 0.39      
12 A1 914 825 2.12      
13 A1 572 517 0.30      
14 A2 1344 1214 0.00      
15 A2 1232 1113 0.00      
16 A2 1153 1042 0.00      
17 A2 1033 933 0.00      
18 A2 908 820 0.00      
19 A2 573 518 0.00      
20 B1 3264 2948 61.92      
21 B1 3193 2885 81.29      
22 B1 1621 1464 0.05      
23 B1 1360 1228 0.10      
24 B1 1091 986 4.51      
25 B1 890 804 11.98      
26 B1 775 700 63.21      
27 B1 492 445 11.29      
28 B2 3371 3045 13.34      
29 B2 3271 2955 142.89      
30 B2 1459 1318 15.72      
31 B2 1372 1239 6.44      
32 B2 1361 1230 2.82      
33 B2 1199 1083 5.48      
34 B2 981 886 0.14      
35 B2 904 817 8.51      
36 B2 784 708 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 28767.1 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 25988.2 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/CEP-121G*
ABC
0.19571 0.15641 0.14352

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 1.232
C2 0.000 -0.665 1.232
C3 0.000 -1.021 -0.266
C4 0.000 1.021 -0.266
C5 1.063 0.000 -0.793
C6 -1.063 0.000 -0.793
H7 0.000 1.353 2.057
H8 0.000 -1.353 2.057
H9 0.000 -2.066 -0.551
H10 0.000 2.066 -0.551
H11 2.040 0.000 -0.321
H12 -2.040 0.000 -0.321
H13 -1.161 0.000 -1.876
H14 1.161 0.000 -1.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.32912.25491.53982.38132.38131.07532.18033.26122.26782.64852.64853.38373.3837
C21.32911.53982.25492.38132.38132.18031.07532.26783.26122.64852.64853.38373.3837
C32.25491.53982.04171.56501.56503.32212.34741.08343.10012.28212.28212.23212.2321
C41.53982.25492.04171.56501.56502.34743.32213.10011.08342.28212.28212.23212.2321
C52.38132.38131.56501.56502.12613.32953.32952.33612.33611.08533.13902.47411.0878
C62.38132.38131.56501.56502.12613.32953.32952.33612.33613.13901.08531.08782.4741
H71.07532.18033.32212.34743.32953.32952.70684.30092.70423.41323.41324.31894.3189
H82.18031.07532.34743.32213.32953.32952.70682.70424.30093.41323.41324.31894.3189
H93.26122.26781.08343.10012.33612.33614.30092.70424.13232.91292.91292.71542.7154
H102.26783.26123.10011.08342.33612.33612.70424.30094.13232.91292.91292.71542.7154
H112.64852.64852.28212.28211.08533.13903.41323.41322.91292.91294.08063.55951.7866
H122.64852.64852.28212.28213.13901.08533.41323.41322.91292.91294.08061.78663.5595
H133.38373.38372.23212.23212.47411.08784.31894.31892.71542.71543.55951.78662.3227
H143.38373.38372.23212.23211.08782.47414.31894.31892.71542.71541.78663.55952.3227

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 103.378 C1 C2 H8 129.836
C1 C4 C5 100.157 C1 C4 C6 100.157
C1 C4 H10 118.620 C2 C1 C4 103.378
C2 C1 H7 129.836 C2 C3 C5 100.157
C2 C3 C6 100.157 C2 C3 H9 118.620
C3 C2 H8 126.786 C3 C5 C4 81.428
C3 C5 H11 117.729 C3 C5 H14 113.354
C3 C6 C4 81.428 C3 C6 H12 117.729
C3 C6 H13 113.354 C4 C1 H7 126.786
C4 C5 H11 117.729 C4 C5 H14 113.354
C4 C6 H12 117.729 C4 C6 H13 113.354
C5 C3 C6 85.568 C5 C3 H9 122.745
C5 C4 C6 85.568 C5 C4 H10 122.745
C6 C3 H9 122.745 C6 C4 H10 122.745
H11 C5 H14 110.597 H12 C6 H13 110.597
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.363      
2 C -0.363      
3 C 0.127      
4 C 0.127      
5 C -0.599      
6 C -0.599      
7 H 0.242      
8 H 0.242      
9 H 0.247      
10 H 0.247      
11 H 0.177      
12 H 0.177      
13 H 0.169      
14 H 0.169      


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 -0.287 0.287
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.807 0.000 0.000
y 0.000 -35.361 0.000
z 0.000 0.000 -36.193
Traceless
 xyz
x -3.031 0.000 0.000
y 0.000 2.139 0.000
z 0.000 0.000 0.891
Polar
3z2-r21.783
x2-y2-3.447
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.892 0.000 0.000
y 0.000 9.225 0.000
z 0.000 0.000 8.979


<r2> (average value of r2) Å2
<r2> 101.162
(<r2>)1/2 10.058