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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-308.630921
Energy at 298.15K-308.638604
HF Energy-307.534937
Nuclear repulsion energy325.301161
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 3239 3026 0.00      
2 A1 1743 1629 0.00      
3 A1 1254 1172 0.00      
4 A1 923 863 0.00      
5 A1 780 729 0.00      
6 A1 189 176 0.00      
7 A2 3208 2998 0.00      
8 A2 1402 1310 0.00      
9 A2 979 915 0.00      
10 A2 929 868 0.00      
11 A2 217 202 0.00      
12 B1 3216 3005 0.00      
13 B1 1508 1409 0.00      
14 B1 1074 1003 0.00      
15 B1 947 884 0.00      
16 B1 647 604 0.00      
17 B1 229 214 0.00      
18 B2 3229 3017 39.53      
19 B2 1707 1595 1.25      
20 B2 1251 1169 0.57      
21 B2 698 652 71.99      
22 B2 291 272 1.08      
23 E 3234 3022 58.97      
23 E 3234 3022 58.97      
24 E 3211 3001 1.16      
24 E 3211 3001 1.16      
25 E 1720 1608 1.08      
25 E 1720 1608 1.08      
26 E 1460 1364 0.00      
26 E 1460 1364 0.00      
27 E 1266 1183 0.90      
27 E 1266 1183 0.90      
28 E 997 931 1.54      
28 E 997 931 1.54      
29 E 975 911 1.61      
29 E 975 911 1.61      
30 E 822 768 20.78      
30 E 822 768 20.78      
31 E 636 594 16.32      
31 E 636 594 16.32      
32 E 347 325 2.00      
32 E 347 325 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 29496.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 27561.6 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
0.09083 0.09083 0.05229

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 0.673 1.533 0.410
C2 -0.673 1.533 0.410
C3 0.673 -1.533 0.410
C4 -0.673 -1.533 0.410
C5 1.533 0.673 -0.410
C6 -1.533 0.673 -0.410
C7 1.533 -0.673 -0.410
C8 -1.533 -0.673 -0.410
H9 1.180 2.281 1.012
H10 -1.180 2.281 1.012
H11 1.180 -2.281 1.012
H12 -1.180 -2.281 1.012
H13 2.281 1.180 -1.012
H14 -2.281 1.180 -1.012
H15 2.281 -1.180 -1.012
H16 -2.281 -1.180 -1.012

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.34573.06703.34921.46782.50632.50633.22621.08552.08683.89504.28342.17553.29733.46024.2558
C21.34573.34923.06702.50631.46783.22622.50632.08681.08554.28343.89503.29732.17554.25583.4602
C33.06703.34921.34572.50633.22621.46782.50633.89504.28341.08552.08683.46024.25582.17553.2973
C43.34923.06701.34573.22622.50632.50631.46784.28343.89502.08681.08554.25583.46023.29732.1755
C51.46782.50632.50633.22623.06701.34573.34922.17553.46023.29734.25581.08553.89502.08684.2834
C62.50631.46783.22622.50633.06703.34921.34573.46022.17554.25583.29733.89501.08554.28342.0868
C72.50633.22621.46782.50631.34573.34923.06703.29734.25582.17553.46022.08684.28341.08553.8950
C83.22622.50632.50631.46783.34921.34573.06704.25583.29733.46022.17554.28342.08683.89501.0855
H91.08552.08683.89504.28342.17553.46023.29734.25582.36054.56235.13682.55304.15784.15785.2968
H102.08681.08554.28343.89503.46022.17554.25583.29732.36055.13684.56234.15782.55305.29684.1578
H113.89504.28341.08552.08683.29734.25582.17553.46024.56235.13682.36054.15785.29682.55304.1578
H124.28343.89502.08681.08554.25583.29733.46022.17555.13684.56232.36055.29684.15784.15782.5530
H132.17553.29733.46024.25581.08553.89502.08684.28342.55304.15784.15785.29684.56232.36055.1368
H143.29732.17554.25583.46023.89501.08554.28342.08684.15782.55305.29684.15784.56235.13682.3605
H153.46024.25582.17553.29732.08684.28341.08553.89504.15785.29682.55304.15782.36055.13684.5623
H164.25583.46023.29732.17554.28342.08683.89501.08555.29684.15784.15782.55305.13682.36054.5623

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 125.900 C1 C2 H10 117.870
C1 C5 C7 125.900 C1 C5 H13 116.069
C2 C1 C5 125.900 C2 C1 H9 117.870
C2 C6 C8 125.900 C2 C6 H14 116.069
C3 C4 C8 125.900 C3 C4 H12 117.870
C3 C7 C5 125.900 C3 C7 H15 116.069
C4 C3 C7 125.900 C4 C3 H11 117.870
C4 C8 C6 125.900 C4 C8 H16 116.069
C5 C1 H9 116.069 C5 C7 H15 117.870
C6 C2 H10 116.069 C6 C8 H16 117.870
C7 C3 H11 116.069 C7 C5 H13 117.870
C8 C4 H12 116.069 C8 C6 H14 117.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability