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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-308.689450
Energy at 298.15K-308.697032
HF Energy-307.588977
Nuclear repulsion energy324.561043
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 MP2/6-311G**
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 3187 3029 0.00      
2 A1 1707 1622 0.00      
3 A1 1220 1159 0.00      
4 A1 908 863 0.00      
5 A1 764 726 0.00      
6 A1 189 180 0.00      
7 A2 3155 2998 0.00      
8 A2 1363 1295 0.00      
9 A2 954 907 0.00      
10 A2 911 866 0.00      
11 A2 210 200 0.00      
12 B1 3164 3006 0.00      
13 B1 1473 1399 0.00      
14 B1 1048 996 0.00      
15 B1 918 873 0.00      
16 B1 629 597 0.00      
17 B1 216 206 0.00      
18 B2 3178 3019 35.16      
19 B2 1667 1584 1.63      
20 B2 1220 1160 0.98      
21 B2 686 652 84.23      
22 B2 287 272 1.51      
23 E 3183 3024 53.06      
23 E 3183 3024 53.06      
24 E 3159 3002 1.14      
24 E 3159 3002 1.14      
25 E 1682 1599 1.03      
25 E 1682 1599 1.03      
26 E 1422 1351 0.24      
26 E 1422 1351 0.24      
27 E 1234 1172 1.20      
27 E 1234 1172 1.20      
28 E 977 929 1.54      
28 E 977 929 1.54      
29 E 957 909 1.94      
29 E 957 909 1.94      
30 E 807 767 25.99      
30 E 807 767 25.99      
31 E 623 592 19.00      
31 E 623 592 19.00      
32 E 343 326 2.98      
32 E 343 326 2.98      

Unscaled Zero Point Vibrational Energy (zpe) 28912.9 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 27473.0 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 MP2/6-311G**
ABC
0.09044 0.09044 0.05220

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.675 1.534 0.415
C2 -0.675 1.534 0.415
C3 0.675 -1.534 0.415
C4 -0.675 -1.534 0.415
C5 1.534 0.675 -0.415
C6 -1.534 0.675 -0.415
C7 1.534 -0.675 -0.415
C8 -1.534 -0.675 -0.415
H9 1.184 2.284 1.021
H10 -1.184 2.284 1.021
H11 1.184 -2.284 1.021
H12 -1.184 -2.284 1.021
H13 2.284 1.184 -1.021
H14 -2.284 1.184 -1.021
H15 2.284 -1.184 -1.021
H16 -2.284 -1.184 -1.021

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.34903.06793.35141.47192.51102.51103.23171.09032.09393.89894.28922.18463.30673.46994.2664
C21.34903.35143.06792.51101.47193.23172.51102.09391.09034.28923.89893.30672.18464.26643.4699
C33.06793.35141.34902.51103.23171.47192.51103.89894.28921.09032.09393.46994.26642.18463.3067
C43.35143.06791.34903.23172.51102.51101.47194.28923.89892.09391.09034.26643.46993.30672.1846
C51.47192.51102.51103.23173.06791.34903.35142.18463.46993.30674.26641.09033.89892.09394.2892
C62.51101.47193.23172.51103.06793.35141.34903.46992.18464.26643.30673.89891.09034.28922.0939
C72.51103.23171.47192.51101.34903.35143.06793.30674.26642.18463.46992.09394.28921.09033.8989
C83.23172.51102.51101.47193.35141.34903.06794.26643.30673.46992.18464.28922.09393.89891.0903
H91.09032.09393.89894.28922.18463.46993.30674.26642.36904.56745.14522.56564.17164.17165.3125
H102.09391.09034.28923.89893.46992.18464.26643.30672.36905.14524.56744.17162.56565.31254.1716
H113.89894.28921.09032.09393.30674.26642.18463.46994.56745.14522.36904.17165.31252.56564.1716
H124.28923.89892.09391.09034.26643.30673.46992.18465.14524.56742.36905.31254.17164.17162.5656
H132.18463.30673.46994.26641.09033.89892.09394.28922.56564.17164.17165.31254.56742.36905.1452
H143.30672.18464.26643.46993.89891.09034.28922.09394.17162.56565.31254.17164.56745.14522.3690
H153.46994.26642.18463.30672.09394.28921.09033.89894.17165.31252.56564.17162.36905.14524.5674
H164.26643.46993.30672.18464.28922.09393.89891.09035.31254.17164.17162.56565.14522.36904.5674

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 125.727 C1 C2 H10 117.887
C1 C5 C7 125.727 C1 C5 H13 116.206
C2 C1 C5 125.727 C2 C1 H9 117.887
C2 C6 C8 125.727 C2 C6 H14 116.206
C3 C4 C8 125.727 C3 C4 H12 117.887
C3 C7 C5 125.727 C3 C7 H15 116.206
C4 C3 C7 125.727 C4 C3 H11 117.887
C4 C8 C6 125.727 C4 C8 H16 116.206
C5 C1 H9 116.206 C5 C7 H15 117.887
C6 C2 H10 116.206 C6 C8 H16 117.887
C7 C3 H11 116.206 C7 C5 H13 117.887
C8 C4 H12 116.206 C8 C6 H14 117.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability