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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-308.123225
Energy at 298.15K-308.131031
HF Energy-307.404775
Nuclear repulsion energy321.160872
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=FULL/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 A1 3168 3009 0.00      
2 A1 1707 1622 0.00      
3 A1 1283 1219 0.00      
4 A1 904 859 0.00      
5 A1 780 741 0.00      
6 A1 190 180 0.00      
7 A2 3128 2972 0.00      
8 A2 1433 1361 0.00      
9 A2 970 922 0.00      
10 A2 956 908 0.00      
11 A2 228 217 0.00      
12 B1 3137 2980 0.00      
13 B1 1496 1421 0.00      
14 B1 1070 1017 0.00      
15 B1 950 902 0.00      
16 B1 666 633 0.00      
17 B1 243 230 0.00      
18 B2 3153 2996 54.65      
19 B2 1666 1583 2.26      
20 B2 1269 1205 0.63      
21 B2 706 671 91.16      
22 B2 298 283 1.56      
23 E 3160 3002 83.87      
23 E 3160 3002 83.87      
24 E 3132 2975 3.29      
24 E 3132 2975 3.29      
25 E 1679 1596 0.74      
25 E 1679 1596 0.74      
26 E 1471 1397 0.07      
26 E 1471 1397 0.07      
27 E 1293 1228 0.19      
27 E 1293 1228 0.19      
28 E 988 939 2.20      
28 E 988 939 2.20      
29 E 966 917 2.34      
29 E 966 917 2.34      
30 E 829 788 21.87      
30 E 829 788 21.87      
31 E 653 620 18.07      
31 E 653 620 18.07      
32 E 366 348 2.05      
32 E 366 348 2.05      

Unscaled Zero Point Vibrational Energy (zpe) 29235.1 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 27776.2 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 MP2=FULL/6-31G
ABC
0.08846 0.08846 0.05071

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.680 1.560 0.408
C2 -0.680 1.560 0.408
C3 0.680 -1.560 0.408
C4 -0.680 -1.560 0.408
C5 1.560 0.680 -0.408
C6 -1.560 0.680 -0.408
C7 1.560 -0.680 -0.408
C8 -1.560 -0.680 -0.408
H9 1.195 2.308 1.020
H10 -1.195 2.308 1.020
H11 1.195 -2.308 1.020
H12 -1.195 -2.308 1.020
H13 2.308 1.195 -1.020
H14 -2.308 1.195 -1.020
H15 2.308 -1.195 -1.020
H16 -2.308 -1.195 -1.020

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.36093.11933.40321.48712.54102.54103.27131.09502.10973.94934.34152.19563.33203.50354.3076
C21.36093.40323.11932.54101.48713.27132.54102.10971.09504.34153.94933.33202.19564.30763.5035
C33.11933.40321.36092.54103.27131.48712.54103.94934.34151.09502.10973.50354.30762.19563.3320
C43.40323.11931.36093.27132.54102.54101.48714.34153.94932.10971.09504.30763.50353.33202.1956
C51.48712.54102.54103.27133.11931.36093.40322.19563.50353.33204.30761.09503.94932.10974.3415
C62.54101.48713.27132.54103.11933.40321.36093.50352.19564.30763.33203.94931.09504.34152.1097
C72.54103.27131.48712.54101.36093.40323.11933.33204.30762.19563.50352.10974.34151.09503.9493
C83.27132.54102.54101.48713.40321.36093.11934.30763.33203.50352.19564.34152.10973.94931.0950
H91.09502.10973.94934.34152.19563.50353.33204.30762.38954.61595.19772.57664.20344.20345.3571
H102.10971.09504.34153.94933.50352.19564.30763.33202.38955.19774.61594.20342.57665.35714.2034
H113.94934.34151.09502.10973.33204.30762.19563.50354.61595.19772.38954.20345.35712.57664.2034
H124.34153.94932.10971.09504.30763.33203.50352.19565.19774.61592.38955.35714.20344.20342.5766
H132.19563.33203.50354.30761.09503.94932.10974.34152.57664.20344.20345.35714.61592.38955.1977
H143.33202.19564.30763.50353.94931.09504.34152.10974.20342.57665.35714.20344.61595.19772.3895
H153.50354.30762.19563.33202.10974.34151.09503.94934.20345.35712.57664.20342.38955.19774.6159
H164.30763.50353.33202.19564.34152.10973.94931.09505.35714.20344.20342.57665.19772.38954.6159

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 126.243 C1 C2 H10 118.016
C1 C5 C7 126.243 C1 C5 H13 115.653
C2 C1 C5 126.243 C2 C1 H9 118.016
C2 C6 C8 126.243 C2 C6 H14 115.653
C3 C4 C8 126.243 C3 C4 H12 118.016
C3 C7 C5 126.243 C3 C7 H15 115.653
C4 C3 C7 126.243 C4 C3 H11 118.016
C4 C8 C6 126.243 C4 C8 H16 115.653
C5 C1 H9 115.653 C5 C7 H15 118.016
C6 C2 H10 115.653 C6 C8 H16 118.016
C7 C3 H11 115.653 C7 C5 H13 118.016
C8 C4 H12 115.653 C8 C6 H14 118.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability