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

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-229.747211
Energy at 298.15K 
HF Energy-229.267211
Nuclear repulsion energy207.023775
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 CID/3-21G
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 3339 3111 4.22      
2 A1 3260 3037 19.15      
3 A1 1671 1556 0.07      
4 A1 1218 1135 4.74      
5 A1 1103 1028 3.41      
6 A1 968 902 23.18      
7 A1 857 799 53.45      
8 A1 852 794 18.82      
9 A1 407 380 4.19      
10 A2 3297 3071 0.00      
11 A2 1346 1254 0.00      
12 A2 1281 1193 0.00      
13 A2 987 919 0.00      
14 A2 941 877 0.00      
15 A2 830 773 0.00      
16 A2 361 337 0.00      
17 B1 3334 3106 28.92      
18 B1 1644 1531 5.16      
19 B1 1282 1194 0.80      
20 B1 1154 1075 0.03      
21 B1 1002 934 3.43      
22 B1 783 730 59.02      
23 B2 3299 3073 15.57      
24 B2 3249 3027 8.32      
25 B2 1361 1268 32.86      
26 B2 1205 1122 12.69      
27 B2 1010 941 7.41      
28 B2 991 923 0.04      
29 B2 858 800 6.17      
30 B2 514 479 6.30      

Unscaled Zero Point Vibrational Energy (zpe) 22202.7 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 20684.0 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 CID/3-21G
ABC
0.25215 0.14781 0.11596

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.808 0.558
C2 0.000 -0.808 0.558
H3 0.000 1.385 1.474
H4 0.000 -1.385 1.474
C5 -1.301 0.670 -0.278
C6 1.301 0.670 -0.278
C7 1.301 -0.670 -0.278
C8 -1.301 -0.670 -0.278
H9 -1.931 1.409 -0.742
H10 1.931 1.409 -0.742
H11 1.931 -1.409 -0.742
H12 -1.931 -1.409 -0.742

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.61591.08292.37651.55231.55232.13902.13902.40422.40423.21493.2149
C21.61592.37651.08292.13902.13901.55231.55233.21493.21492.40422.4042
H31.08292.37652.76932.29632.29632.99732.99732.93952.93954.05554.0555
H42.37651.08292.76932.99732.99732.29632.29634.05554.05552.93952.9395
C51.55232.13902.29632.99732.60192.92671.34011.07673.34823.87142.2219
C61.55232.13902.29632.99732.60191.34012.92673.34821.07672.22193.8714
C72.13901.55232.99732.29632.92671.34012.60193.87142.22191.07673.3482
C82.13901.55232.99732.29631.34012.92672.60192.22193.87143.34821.0767
H92.40423.21492.93954.05551.07673.34823.87142.22193.86304.78212.8189
H102.40423.21492.93954.05553.34821.07672.22193.87143.86302.81894.7821
H113.21492.40424.05552.93953.87142.22191.07673.34824.78212.81893.8630
H123.21492.40424.05552.93952.22193.87143.34821.07672.81894.78213.8630

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 122.180 C1 C2 H7 84.903
C1 C2 H8 84.903 C1 C5 H8 95.097
C1 C5 H9 131.419 C1 C6 H7 95.097
C1 C6 H10 131.419 C2 C1 C3 122.180
C2 C1 C5 84.903 C2 C1 C6 84.903
C2 H7 C6 95.097 C2 H7 H11 131.419
C2 H8 C5 95.097 C2 H8 H12 131.419
C3 C1 C5 120.191 C3 C1 C6 120.191
C4 C2 H7 120.191 C4 C2 H8 120.191
C5 C1 C6 113.877 C5 H8 H12 133.373
C6 H7 H11 133.373 H7 C6 H10 133.373
H8 C5 H9 133.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability