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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-309.700985
Energy at 298.15K-309.708854
HF Energy-309.700985
Nuclear repulsion energy324.301850
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 B3LYP/aug-cc-pVTZ
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 3137 3036 0.00      
2 A1 1712 1656 0.00      
3 A1 1244 1204 0.00      
4 A1 890 861 0.00      
5 A1 776 751 0.00      
6 A1 179 173 0.00      
7 A2 3105 3004 0.00      
8 A2 1397 1351 0.00      
9 A2 1022 989 0.00      
10 A2 947 916 0.00      
11 A2 237 229 0.00      
12 B1 3114 3013 0.00      
13 B1 1474 1426 0.00      
14 B1 1052 1017 0.00      
15 B1 988 956 0.00      
16 B1 675 654 0.00      
17 B1 267 258 0.00      
18 B2 3124 3023 26.59      
19 B2 1698 1643 0.53      
20 B2 1242 1202 1.15      
21 B2 686 664 92.15      
22 B2 292 283 1.54      
23 E 3131 3030 58.56      
23 E 3131 3030 58.56      
24 E 3108 3007 0.99      
24 E 3108 3007 0.99      
25 E 1690 1635 3.12      
25 E 1690 1635 3.12      
26 E 1438 1391 0.09      
26 E 1438 1391 0.09      
27 E 1259 1218 1.34      
27 E 1259 1218 1.34      
28 E 1012 979 0.79      
28 E 1012 979 0.79      
29 E 959 927 1.43      
29 E 959 927 1.43      
30 E 815 788 19.75      
30 E 815 788 19.75      
31 E 655 633 19.38      
31 E 655 633 19.38      
32 E 367 355 1.14      
32 E 367 355 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 29061.4 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 28116.9 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 B3LYP/aug-cc-pVTZ
ABC
0.09028 0.09028 0.05056

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.666 1.551 0.391
C2 -0.666 1.551 0.391
C3 0.666 -1.551 0.391
C4 -0.666 -1.551 0.391
C5 1.551 0.666 -0.391
C6 1.551 -0.666 -0.391
C7 -1.551 0.666 -0.391
C8 -1.551 -0.666 -0.391
H9 1.184 2.304 0.980
H10 -1.184 2.304 0.980
H11 1.184 -2.304 0.980
H12 -1.184 -2.304 0.980
H13 2.304 1.184 -0.980
H14 2.304 -1.184 -0.980
H15 -2.304 1.184 -0.980
H16 -2.304 -1.184 -0.980

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.33133.10163.37531.47582.51142.51143.23051.08792.08253.93414.31632.16743.47053.29134.2637
C21.33133.37533.10162.51143.23051.47582.51142.08251.08794.31633.93413.29134.26372.16743.4705
C33.10163.37531.33132.51141.47583.23052.51143.93414.31631.08792.08253.47052.16744.26373.2913
C43.37533.10161.33133.23052.51142.51141.47584.31633.93412.08251.08794.26373.29133.47052.1674
C51.47582.51142.51143.23051.33133.10163.37532.16743.47053.29134.26371.08792.08253.93414.3163
C62.51143.23051.47582.51141.33133.37533.10163.29134.26372.16743.47052.08251.08794.31633.9341
C72.51141.47583.23052.51143.10163.37531.33133.47052.16744.26373.29133.93414.31631.08792.0825
C83.23052.51142.51141.47583.37533.10161.33134.26373.29133.47052.16744.31633.93412.08251.0879
H91.08792.08253.93414.31632.16743.29133.47054.26372.36864.60845.18142.51974.15504.15505.3084
H102.08251.08794.31633.93413.47054.26372.16743.29132.36865.18144.60844.15505.30842.51974.1550
H113.93414.31631.08792.08253.29132.16744.26373.47054.60845.18142.36864.15502.51975.30844.1550
H124.31633.93412.08251.08794.26373.47053.29132.16745.18144.60842.36865.30844.15504.15502.5197
H132.16743.29133.47054.26371.08792.08253.93414.31632.51974.15504.15505.30842.36864.60845.1814
H143.47054.26372.16743.29132.08251.08794.31633.93414.15505.30842.51974.15502.36865.18144.6084
H153.29132.16744.26373.47053.93414.31631.08792.08254.15502.51975.30844.15504.60845.18142.3686
H164.26373.47053.29132.16744.31633.93412.08251.08795.30844.15504.15502.51975.18144.60842.3686

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 46.678 C1 C2 H10 118.473
C1 C5 C7 53.145 C1 C5 H13 114.593
C2 C1 C5 126.855 C2 C1 H9 118.473
C2 C6 C8 46.678 C2 C6 H14 158.941
C3 C4 C8 126.855 C3 C4 H12 118.473
C3 C7 C5 46.678 C3 C7 H15 158.941
C4 C3 C7 46.678 C4 C3 H11 118.473
C4 C8 C6 53.145 C4 C8 H16 114.593
C5 C1 H9 114.593 C5 C7 H15 133.829
C6 C2 H10 158.941 C6 C8 H16 133.829
C7 C3 H11 158.941 C7 C5 H13 133.829
C8 C4 H12 114.593 C8 C6 H14 133.829
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability