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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: MP2=FULL/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=FULL/6-311G*
 hartrees
Energy at 0K-308.780665
Energy at 298.15K-308.788262
HF Energy-307.574938
Nuclear repulsion energy324.875480
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3188 3020 0.00      
2 A1 1714 1624 0.00      
3 A1 1241 1176 0.00      
4 A1 913 864 0.00      
5 A1 768 727 0.00      
6 A1 189 179 0.00      
7 A2 3158 2991 0.00      
8 A2 1382 1309 0.00      
9 A2 946 896 0.00      
10 A2 920 871 0.00      
11 A2 213 201 0.00      
12 B1 3166 2998 0.00      
13 B1 1486 1408 0.00      
14 B1 1057 1001 0.00      
15 B1 911 863 0.00      
16 B1 639 605 0.00      
17 B1 221 210 0.00      
18 B2 3179 3011 36.78      
19 B2 1677 1589 2.38      
20 B2 1236 1170 1.45      
21 B2 689 652 94.83      
22 B2 288 273 2.20      
23 E 3184 3015 56.07      
23 E 3184 3015 56.07      
24 E 3161 2994 1.52      
24 E 3161 2994 1.52      
25 E 1691 1602 0.72      
25 E 1691 1602 0.72      
26 E 1438 1362 0.88      
26 E 1438 1362 0.88      
27 E 1252 1185 0.67      
27 E 1252 1185 0.67      
28 E 983 931 1.72      
28 E 983 931 1.72      
29 E 948 898 1.49      
29 E 948 898 1.49      
30 E 812 769 29.93      
30 E 812 769 29.93      
31 E 627 594 22.56      
31 E 627 594 22.56      
32 E 346 327 3.60      
32 E 346 327 3.60      

Unscaled Zero Point Vibrational Energy (zpe) 29031.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 27495.8 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/6-311G*
ABC
0.09062 0.09062 0.05234

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.674 1.532 0.415
C2 -0.674 1.532 0.415
C3 0.674 -1.532 0.415
C4 -0.674 -1.532 0.415
C5 1.532 0.674 -0.415
C6 -1.532 0.674 -0.415
C7 1.532 -0.674 -0.415
C8 -1.532 -0.674 -0.415
H9 1.184 2.279 1.024
H10 -1.184 2.279 1.024
H11 1.184 -2.279 1.024
H12 -1.184 -2.279 1.024
H13 2.279 1.184 -1.024
H14 -2.279 1.184 -1.024
H15 2.279 -1.184 -1.024
H16 -2.279 -1.184 -1.024

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.34783.06403.34731.47022.50822.50823.22811.09042.09313.89294.28332.18343.30313.46754.2622
C21.34783.34733.06402.50821.47023.22812.50822.09311.09044.28333.89293.30312.18344.26223.4675
C33.06403.34731.34782.50823.22811.47022.50823.89294.28331.09042.09313.46754.26222.18343.3031
C43.34733.06401.34783.22812.50822.50821.47024.28333.89292.09311.09044.26223.46753.30312.1834
C51.47022.50822.50823.22813.06401.34783.34732.18343.46753.30314.26221.09043.89292.09314.2833
C62.50821.47023.22812.50823.06403.34731.34783.46752.18344.26223.30313.89291.09044.28332.0931
C72.50823.22811.47022.50821.34783.34733.06403.30314.26222.18343.46752.09314.28331.09043.8929
C83.22812.50822.50821.47023.34731.34783.06404.26223.30313.46752.18344.28332.09313.89291.0904
H91.09042.09313.89294.28332.18343.46753.30314.26222.36834.55795.13652.56714.16954.16955.3084
H102.09311.09044.28333.89293.46752.18344.26223.30312.36835.13654.55794.16952.56715.30844.1695
H113.89294.28331.09042.09313.30314.26222.18343.46754.55795.13652.36834.16955.30842.56714.1695
H124.28333.89292.09311.09044.26223.30313.46752.18345.13654.55792.36835.30844.16954.16952.5671
H132.18343.30313.46754.26221.09043.89292.09314.28332.56714.16954.16955.30844.55792.36835.1365
H143.30312.18344.26223.46753.89291.09044.28332.09314.16952.56715.30844.16954.55795.13652.3683
H153.46754.26222.18343.30312.09314.28331.09043.89294.16955.30842.56714.16952.36835.13654.5579
H164.26223.46753.30312.18344.28332.09313.89291.09045.30844.16954.16952.56715.13652.36834.5579

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 125.710 C1 C2 H10 117.900
C1 C5 C7 125.710 C1 C5 H13 116.226
C2 C1 C5 125.710 C2 C1 H9 117.900
C2 C6 C8 125.710 C2 C6 H14 116.226
C3 C4 C8 125.710 C3 C4 H12 117.900
C3 C7 C5 125.710 C3 C7 H15 116.226
C4 C3 C7 125.710 C4 C3 H11 117.900
C4 C8 C6 125.710 C4 C8 H16 116.226
C5 C1 H9 116.226 C5 C7 H15 117.900
C6 C2 H10 116.226 C6 C8 H16 117.900
C7 C3 H11 116.226 C7 C5 H13 117.900
C8 C4 H12 116.226 C8 C6 H14 117.900
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability