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All results from a given calculation for C6H6 (Dewar Benzene)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-231.663066
Energy at 298.15K-231.657580
HF Energy-230.562499
Nuclear repulsion energy209.604500
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 CBS-Q
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 3392 3392 8.57 245.70 0.03 0.06
2 A1 3269 3269 55.43 135.90 0.16 0.27
3 A1 1789 1789 0.07 37.93 0.11 0.20
4 A1 1308 1308 3.92 19.80 0.19 0.32
5 A1 1146 1146 1.05 16.31 0.61 0.76
6 A1 1028 1028 22.41 15.10 0.28 0.44
7 A1 948 948 0.00 6.72 0.70 0.82
8 A1 894 894 66.17 8.36 0.09 0.17
9 A1 422 422 3.91 10.04 0.63 0.77
10 A2 3354 3354 0.00 156.50 0.75 0.86
11 A2 1435 1435 0.00 7.14 0.75 0.86
12 A2 1325 1325 0.00 9.98 0.75 0.86
13 A2 1055 1055 0.00 0.12 0.75 0.86
14 A2 1027 1027 0.00 0.34 0.75 0.86
15 A2 857 857 0.00 4.59 0.75 0.86
16 A2 364 364 0.00 3.05 0.75 0.86
17 B1 3389 3389 51.27 52.78 0.75 0.86
18 B1 1761 1761 8.52 1.36 0.75 0.86
19 B1 1357 1357 9.94 0.71 0.75 0.86
20 B1 1194 1194 0.00 0.04 0.75 0.86
21 B1 1079 1079 1.81 11.91 0.75 0.86
22 B1 803 803 39.05 3.66 0.75 0.86
23 B2 3356 3356 37.88 41.22 0.75 0.86
24 B2 3259 3259 31.07 121.35 0.75 0.86
25 B2 1423 1423 40.31 0.02 0.75 0.86
26 B2 1288 1288 4.78 0.94 0.75 0.86
27 B2 1075 1075 3.69 1.77 0.75 0.86
28 B2 1021 1021 6.41 0.04 0.75 0.86
29 B2 916 916 8.59 2.36 0.75 0.86
30 B2 544 544 8.60 6.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23038.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 23038.2 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 CBS-Q
ABC
0.25769 0.14919 0.11594

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.779 0.522
C2 0.000 -0.779 0.522
H3 0.000 1.345 1.448
H4 0.000 -1.345 1.448
C5 -1.304 0.663 -0.265
C6 1.304 0.663 -0.265
C7 1.304 -0.663 -0.265
C8 -1.304 -0.663 -0.265
H9 -1.952 1.404 -0.702
H10 1.952 1.404 -0.702
H11 1.952 -1.404 -0.702
H12 -1.952 -1.404 -0.702

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.55791.08502.31701.52721.52722.09692.09692.38722.38723.17413.1741
C21.55792.31701.08502.09692.09691.52721.52723.17413.17412.38722.3872
H31.08502.31702.69022.25772.25772.94322.94322.90422.90423.99873.9987
H42.31701.08502.69022.94322.94322.25772.25773.99873.99872.90422.9042
C51.52722.09692.25772.94322.60792.92531.32521.07773.36783.88122.2098
C61.52722.09692.25772.94322.60791.32522.92533.36781.07772.20983.8812
C72.09691.52722.94322.25772.92531.32522.60793.88122.20981.07773.3678
C82.09691.52722.94322.25771.32522.92532.60792.20983.88123.36781.0777
H92.38723.17412.90423.99871.07773.36783.88122.20983.90374.80912.8087
H102.38723.17412.90423.99873.36781.07772.20983.88123.90372.80874.8091
H113.17412.38723.99872.90423.88122.20981.07773.36784.80912.80873.9037
H123.17412.38723.99872.90422.20983.88123.36781.07772.80874.80913.9037

picture of Dewar Benzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 121.449 C1 C2 H7 85.630
C1 C2 H8 85.630 C1 C5 H8 94.370
C1 C5 H9 132.063 C1 C6 H7 94.370
C1 C6 H10 132.063 C2 C1 C3 121.449
C2 C1 C5 85.630 C2 C1 C6 85.630
C2 H7 C6 94.370 C2 H7 H11 132.063
C2 H8 C5 94.370 C2 H8 H12 132.063
C3 C1 C5 118.624 C3 C1 C6 118.624
C4 C2 H7 118.624 C4 C2 H8 118.624
C5 C1 C6 117.261 C5 H8 H12 133.494
C6 H7 H11 133.494 H7 C6 H10 133.494
H8 C5 H9 133.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability