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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: MP2=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-308.611481
Energy at 298.15K-308.619099
HF Energy-307.545383
Nuclear repulsion energy322.904318
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/cc-pVDZ
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 3205 3046 0.00      
2 A1 1727 1642 0.00      
3 A1 1214 1154 0.00      
4 A1 910 865 0.00      
5 A1 766 728 0.00      
6 A1 184 175 0.00      
7 A2 3171 3013 0.00      
8 A2 1359 1291 0.00      
9 A2 975 927 0.00      
10 A2 914 869 0.00      
11 A2 216 206 0.00      
12 B1 3181 3023 0.00      
13 B1 1474 1401 0.00      
14 B1 1054 1001 0.00      
15 B1 942 895 0.00      
16 B1 643 611 0.00      
17 B1 227 216 0.00      
18 B2 3194 3035 30.88      
19 B2 1678 1594 1.19      
20 B2 1218 1158 0.92      
21 B2 682 649 74.54      
22 B2 285 271 1.24      
23 E 3200 3041 51.73      
23 E 3200 3041 51.73      
24 E 3175 3017 0.61      
24 E 3175 3017 0.61      
25 E 1698 1613 1.03      
25 E 1698 1613 1.03      
26 E 1419 1349 0.09      
26 E 1419 1349 0.09      
27 E 1230 1169 1.19      
27 E 1230 1169 1.19      
28 E 980 931 0.60      
28 E 980 931 0.60      
29 E 967 919 2.21      
29 E 967 919 2.21      
30 E 810 770 22.29      
30 E 810 770 22.29      
31 E 625 594 16.96      
31 E 625 594 16.96      
32 E 341 324 2.53      
32 E 341 324 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 29053.1 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 27612.1 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/cc-pVDZ
ABC
0.08957 0.08957 0.05147

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.678 1.545 0.411
C2 -0.678 1.545 0.411
C3 0.678 -1.545 0.411
C4 -0.678 -1.545 0.411
C5 1.545 0.678 -0.411
C6 -1.545 0.678 -0.411
C7 1.545 -0.678 -0.411
C8 -1.545 -0.678 -0.411
H9 1.188 2.310 1.011
H10 -1.188 2.310 1.011
H11 1.188 -2.310 1.011
H12 -1.188 -2.310 1.011
H13 2.310 1.188 -1.011
H14 -2.310 1.188 -1.011
H15 2.310 -1.188 -1.011
H16 -2.310 -1.188 -1.011

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.35613.08903.37361.47512.52292.52293.24861.09842.10453.93394.32422.19333.32793.48594.2913
C21.35613.37363.08902.52291.47513.24862.52292.10451.09844.32423.93393.32792.19334.29133.4859
C33.08903.37361.35612.52293.24861.47512.52293.93394.32421.09842.10453.48594.29132.19333.3279
C43.37363.08901.35613.24862.52292.52291.47514.32423.93392.10451.09844.29133.48593.32792.1933
C51.47512.52292.52293.24863.08901.35613.37362.19333.48593.32794.29131.09843.93392.10454.3242
C62.52291.47513.24862.52293.08903.37361.35613.48592.19334.29133.32793.93391.09844.32422.1045
C72.52293.24861.47512.52291.35613.37363.08903.32794.29132.19333.48592.10454.32421.09843.9339
C83.24862.52292.52291.47513.37361.35613.08904.29133.32793.48592.19334.32422.10453.93391.0984
H91.09842.10453.93394.32422.19333.48593.32794.29132.37644.61945.19482.57014.19324.19325.3442
H102.10451.09844.32423.93393.48592.19334.29133.32792.37645.19484.61944.19322.57015.34424.1932
H113.93394.32421.09842.10453.32794.29132.19333.48594.61945.19482.37644.19325.34422.57014.1932
H124.32423.93392.10451.09844.29133.32793.48592.19335.19484.61942.37645.34424.19324.19322.5701
H132.19333.32793.48594.29131.09843.93392.10454.32422.57014.19324.19325.34424.61942.37645.1948
H143.32792.19334.29133.48593.93391.09844.32422.10454.19322.57015.34424.19324.61945.19482.3764
H153.48594.29132.19333.32792.10454.32421.09843.93394.19325.34422.57014.19322.37645.19484.6194
H164.29133.48593.32792.19334.32422.10453.93391.09845.34424.19324.19322.57015.19482.37644.6194

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 125.973 C1 C2 H10 117.675
C1 C5 C7 125.973 C1 C5 H13 116.154
C2 C1 C5 125.973 C2 C1 H9 117.675
C2 C6 C8 125.973 C2 C6 H14 116.154
C3 C4 C8 125.973 C3 C4 H12 117.675
C3 C7 C5 125.973 C3 C7 H15 116.154
C4 C3 C7 125.973 C4 C3 H11 117.675
C4 C8 C6 125.973 C4 C8 H16 116.154
C5 C1 H9 116.154 C5 C7 H15 117.675
C6 C2 H10 116.154 C6 C8 H16 117.675
C7 C3 H11 116.154 C7 C5 H13 117.675
C8 C4 H12 116.154 C8 C6 H14 117.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability