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All results from a given calculation for C6H6 (Benzvalene)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-229.793324
Energy at 298.15K-229.799680
HF Energy-229.263052
Nuclear repulsion energy210.900196
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 MP2/3-21G*
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 3309 3148 2.56      
2 A1 3282 3123 8.54      
3 A1 3252 3094 2.45      
4 A1 1563 1487 1.56      
5 A1 1347 1281 0.52      
6 A1 1160 1103 0.02      
7 A1 1125 1070 4.29      
8 A1 1000 951 0.83      
9 A1 898 854 3.56      
10 A1 826 786 8.58      
11 A1 695 661 0.07      
12 A2 1170 1113 0.00      
13 A2 963 916 0.00      
14 A2 875 832 0.00      
15 A2 733 697 0.00      
16 A2 531 505 0.00      
17 B1 3288 3128 4.60      
18 B1 1148 1092 28.65      
19 B1 1043 992 2.63      
20 B1 742 706 88.30      
21 B1 604 574 0.84      
22 B1 522 496 15.53      
23 B2 3258 3099 10.98      
24 B2 3246 3088 2.56      
25 B2 1360 1294 8.57      
26 B2 1288 1225 0.00      
27 B2 1211 1152 1.81      
28 B2 977 930 0.01      
29 B2 876 834 0.07      
30 B2 810 771 10.09      

Unscaled Zero Point Vibrational Energy (zpe) 21550.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 20501.0 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 MP2/3-21G*
ABC
0.23788 0.17088 0.12648

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.747 0.000 -1.031
C2 -0.747 0.000 -1.031
C3 0.000 1.098 -0.200
C4 0.000 -1.098 -0.200
C5 0.000 0.677 1.263
C6 0.000 -0.677 1.263
H7 1.533 0.000 -1.766
H8 -1.533 0.000 -1.766
H9 0.000 2.130 -0.527
H10 0.000 -2.130 -0.527
H11 0.000 1.355 2.105
H12 0.000 -1.355 2.105

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.49321.56611.56612.50562.50561.07622.39522.31252.31253.49723.4972
C21.49321.56611.56612.50562.50562.39521.07622.31252.31253.49723.4972
C31.56611.56612.19551.52272.29982.45072.45071.08273.24412.31993.3662
C41.56611.56612.19552.29981.52272.45072.45073.24411.08273.36622.3199
C52.50562.50561.52272.29981.35303.46133.46132.30583.32871.08152.1991
C62.50562.50562.29981.52271.35303.46133.46133.32872.30582.19911.0815
H71.07622.39522.45072.45073.46133.46133.06652.90182.90184.37834.3783
H82.39521.07622.45072.45073.46133.46133.06652.90182.90184.37834.3783
H92.31252.31251.08273.24412.30583.32872.90182.90184.25982.74424.3673
H102.31252.31253.24411.08273.32872.30582.90182.90184.25984.36732.7442
H113.49723.49722.31993.36621.08152.19914.37834.37832.74424.36732.7098
H123.49723.49723.36622.31992.19911.08154.37834.37834.36732.74422.7098

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.528 C1 C2 C4 61.528
C1 C2 H8 136.964 C1 C3 C2 56.944
C1 C3 C5 108.415 C1 C3 H9 120.532
C1 C4 C2 56.944 C1 C4 C6 108.415
C1 C4 H10 120.532 C2 C1 C3 61.528
C2 C1 C4 61.528 C2 C1 H7 136.964
C2 C3 C5 108.415 C2 C3 H9 120.532
C2 C4 C6 108.415 C2 C4 H10 120.532
C3 C1 C4 89.002 C3 C1 H7 135.276
C3 C2 C4 89.002 C3 C2 H8 135.276
C3 C5 C6 106.060 C3 C5 H11 125.093
C4 C1 H7 135.276 C4 C2 H8 135.276
C4 C6 C5 106.060 C4 C6 H12 125.093
C5 C3 H9 123.635 C5 C6 H12 128.847
C6 C4 H10 123.635 C6 C5 H11 128.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability