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All results from a given calculation for C8H6 (Calicene)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-307.336956
Energy at 298.15K-307.341521
HF Energy-306.288608
Nuclear repulsion energy299.007814
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 QCISD/6-31G*
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 3336 3177 8.06      
2 A1 3253 3098 17.91      
3 A1 3229 3075 6.20      
4 A1 1855 1766 607.10      
5 A1 1614 1537 82.76      
6 A1 1554 1480 98.50      
7 A1 1444 1376 84.61      
8 A1 1236 1177 22.47      
9 A1 1110 1057 6.82      
10 A1 1035 985 16.30      
11 A1 972 926 7.54      
12 A1 896 853 55.38      
13 A1 492 468 1.46      
14 A2 868 827 0.00      
15 A2 841 801 0.00      
16 A2 691 658 0.00      
17 A2 559 533 0.00      
18 A2 220 210 0.00      
19 B1 867 826 0.24      
20 B1 729 694 105.50      
21 B1 655 624 30.41      
22 B1 575 548 5.20      
23 B1 391 372 8.35      
24 B1 119 113 4.68      
25 B2 3297 3140 2.68      
26 B2 3245 3090 29.41      
27 B2 3221 3067 1.20      
28 B2 1636 1558 0.06      
29 B2 1380 1315 0.12      
30 B2 1259 1198 1.13      
31 B2 1142 1087 16.73      
32 B2 1127 1073 3.96      
33 B2 968 921 5.12      
34 B2 841 801 1.65      
35 B2 501 477 1.38      
36 B2 148 141 1.42      

Unscaled Zero Point Vibrational Energy (zpe) 23651.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 22523.2 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 QCISD/6-31G*
ABC
0.22429 0.04726 0.03904

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.043
C2 0.000 0.000 1.305
C3 0.000 0.664 2.578
C4 0.000 -0.664 2.578
C5 0.000 1.174 -0.916
C6 0.000 -1.174 -0.916
C7 0.000 0.733 -2.205
C8 0.000 -0.733 -2.205
H9 0.000 1.588 3.140
H10 0.000 -1.588 3.140
H11 0.000 2.205 -0.571
H12 0.000 -2.205 -0.571
H13 0.000 1.353 -3.098
H14 0.000 -1.353 -3.098

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.34802.70362.70361.46381.46382.28302.28303.55753.55752.26702.26703.34113.3411
C21.34801.43571.43572.51302.51303.58593.58592.42712.42712.89492.89494.60614.6061
C32.70361.43571.32873.53143.94874.78354.98291.08172.32193.50554.25995.71736.0235
C42.70361.43571.32873.94873.53144.98294.78352.32191.08174.25993.50556.02355.7173
C51.46382.51303.53143.94872.34901.36222.30184.07784.90831.08653.39672.18853.3386
C61.46382.51303.94873.53142.34902.30181.36224.90834.07783.39671.08653.33862.1885
C72.28303.58594.78354.98291.36222.30181.46565.41345.82762.19913.36131.08702.2688
C82.28303.58594.98294.78352.30181.36221.46565.82765.41343.36132.19912.26881.0870
H93.55752.42711.08172.32194.07784.90835.41345.82763.17683.76225.30676.24256.8967
H103.55752.42712.32191.08174.90834.07785.82765.41343.17685.30673.76226.89676.2425
H112.26702.89493.50554.25991.08653.39672.19913.36133.76225.30674.40922.66634.3636
H122.26702.89494.25993.50553.39671.08653.36132.19915.30673.76224.40924.36362.6663
H133.34114.60615.71736.02352.18853.33861.08702.26886.24256.89672.66634.36362.7061
H143.34114.60616.02355.71733.33862.18852.26881.08706.89676.24254.36362.66632.7061

picture of Calicene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 152.437 C1 C2 C4 152.437
C1 C5 C7 107.725 C1 C5 H11 124.820
C1 C6 C8 107.725 C1 C6 H12 124.820
C2 C1 C5 126.644 C2 C1 C6 126.644
C2 C3 C4 62.437 C2 C3 H9 148.890
C2 C4 C3 62.437 C2 C4 H10 148.890
C3 C2 C4 55.127 C3 C4 H10 148.674
C4 C3 H9 148.674 C5 C1 C6 106.713
C5 C7 C8 108.919 C5 C7 H13 126.290
C6 C8 C7 108.919 C6 C8 H14 126.290
C7 C5 H11 127.456 C7 C8 H14 124.791
C8 C6 H12 127.456 C8 C7 H13 124.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability