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All results from a given calculation for C8H8 (cyclooctatetraene)

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

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/6-31+G**
 hartrees
Energy at 0K-308.652987
Energy at 298.15K-308.660613
HF Energy-307.545510
Nuclear repulsion energy324.918567
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/6-31+G**
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 3234 3038 0.00      
2 A1 1724 1619 0.00      
3 A1 1247 1171 0.00      
4 A1 918 862 0.00      
5 A1 768 721 0.00      
6 A1 193 182 0.00      
7 A2 3203 3008 0.00      
8 A2 1395 1310 0.00      
9 A2 965 907 0.00      
10 A2 920 864 0.00      
11 A2 210 198 0.00      
12 B1 3211 3016 0.00      
13 B1 1499 1408 0.00      
14 B1 1068 1003 0.00      
15 B1 935 878 0.00      
16 B1 632 594 0.00      
17 B1 219 206 0.00      
18 B2 3224 3028 31.47      
19 B2 1688 1585 0.90      
20 B2 1244 1168 1.64      
21 B2 693 651 101.23      
22 B2 290 272 2.42      
23 E 3229 3033 55.29      
23 E 3229 3033 55.29      
24 E 3206 3011 0.94      
24 E 3206 3011 0.94      
25 E 1701 1598 2.27      
25 E 1701 1598 2.27      
26 E 1451 1362 0.01      
26 E 1451 1362 0.01      
27 E 1259 1183 0.87      
27 E 1259 1183 0.87      
28 E 991 931 1.23      
28 E 991 931 1.23      
29 E 968 909 2.69      
29 E 968 909 2.69      
30 E 814 764 30.81      
30 E 814 764 30.81      
31 E 630 592 21.76      
31 E 630 592 21.76      
32 E 344 323 3.89      
32 E 344 323 3.89      

Unscaled Zero Point Vibrational Energy (zpe) 29333.6 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 27550.1 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/6-31+G**
ABC
0.09062 0.09062 0.05221

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.675 1.534 0.412
C2 -0.675 1.534 0.412
C3 0.675 -1.534 0.412
C4 -0.675 -1.534 0.412
C5 1.534 0.675 -0.412
C6 -1.534 0.675 -0.412
C7 1.534 -0.675 -0.412
C8 -1.534 -0.675 -0.412
H9 1.182 2.284 1.012
H10 -1.182 2.284 1.012
H11 1.182 -2.284 1.012
H12 -1.182 -2.284 1.012
H13 2.284 1.182 -1.012
H14 -2.284 1.182 -1.012
H15 2.284 -1.182 -1.012
H16 -2.284 -1.182 -1.012

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.34943.06783.35141.46842.50922.50923.23041.08602.09013.89754.28722.17773.30233.46314.2610
C21.34943.35143.06782.50921.46843.23042.50922.09011.08604.28723.89753.30232.17774.26103.4631
C33.06783.35141.34942.50923.23041.46842.50923.89754.28721.08602.09013.46314.26102.17773.3023
C43.35143.06781.34943.23042.50922.50921.46844.28723.89752.09011.08604.26103.46313.30232.1777
C51.46842.50922.50923.23043.06781.34943.35142.17773.46313.30234.26101.08603.89752.09014.2872
C62.50921.46843.23042.50923.06783.35141.34943.46312.17774.26103.30233.89751.08604.28722.0901
C72.50923.23041.46842.50921.34943.35143.06783.30234.26102.17773.46312.09014.28721.08603.8975
C83.23042.50922.50921.46843.35141.34943.06784.26103.30233.46312.17774.28722.09013.89751.0860
H91.08602.09013.89754.28722.17773.46313.30234.26102.36354.56735.14262.55494.16204.16205.3026
H102.09011.08604.28723.89753.46312.17774.26103.30232.36355.14264.56734.16202.55495.30264.1620
H113.89754.28721.08602.09013.30234.26102.17773.46314.56735.14262.36354.16205.30262.55494.1620
H124.28723.89752.09011.08604.26103.30233.46312.17775.14264.56732.36355.30264.16204.16202.5549
H132.17773.30233.46314.26101.08603.89752.09014.28722.55494.16204.16205.30264.56732.36355.1426
H143.30232.17774.26103.46313.89751.08604.28722.09014.16202.55495.30264.16204.56735.14262.3635
H153.46314.26102.17773.30232.09014.28721.08603.89754.16205.30262.55494.16202.36355.14264.5673
H164.26103.46313.30232.17774.28722.09013.89751.08605.30264.16204.16202.55495.14262.36354.5673

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 125.810 C1 C2 H10 117.836
C1 C5 C7 125.810 C1 C5 H13 116.169
C2 C1 C5 125.810 C2 C1 H9 117.836
C2 C6 C8 125.810 C2 C6 H14 116.169
C3 C4 C8 125.810 C3 C4 H12 117.836
C3 C7 C5 125.810 C3 C7 H15 116.169
C4 C3 C7 125.810 C4 C3 H11 117.836
C4 C8 C6 125.810 C4 C8 H16 116.169
C5 C1 H9 116.169 C5 C7 H15 117.836
C6 C2 H10 116.169 C6 C8 H16 117.836
C7 C3 H11 116.169 C7 C5 H13 117.836
C8 C4 H12 116.169 C8 C6 H14 117.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability