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All results from a given calculation for C6H6 (Benzvalene)

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-231.378226
Energy at 298.15K-231.384674
HF Energy-230.568934
Nuclear repulsion energy213.997425
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 3271 3115 6.97      
2 A1 3263 3108 10.28      
3 A1 3216 3063 2.02      
4 A1 1652 1574 1.95      
5 A1 1455 1386 0.24      
6 A1 1227 1168 1.51      
7 A1 1141 1087 1.58      
8 A1 1013 964 0.14      
9 A1 944 899 0.00      
10 A1 788 750 2.39      
11 A1 711 677 6.70      
12 A2 1155 1100 0.00      
13 A2 933 889 0.00      
14 A2 863 822 0.00      
15 A2 820 781 0.00      
16 A2 545 519 0.00      
17 B1 3247 3092 9.81      
18 B1 1159 1103 21.50      
19 B1 1021 972 0.12      
20 B1 784 747 85.62      
21 B1 644 614 1.86      
22 B1 521 496 13.31      
23 B2 3246 3091 7.02      
24 B2 3216 3063 23.81      
25 B2 1379 1313 4.99      
26 B2 1314 1252 3.43      
27 B2 1260 1200 0.81      
28 B2 1018 969 0.05      
29 B2 880 838 5.86      
30 B2 841 801 7.07      

Unscaled Zero Point Vibrational Energy (zpe) 21763.0 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 20724.9 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 QCISD/6-31G*
ABC
0.24718 0.17553 0.12968

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 0.726 0.000 -1.008
C2 -0.726 0.000 -1.008
C3 0.000 1.073 -0.207
C4 0.000 -1.073 -0.207
C5 0.000 0.672 1.253
C6 0.000 -0.672 1.253
H7 1.487 0.000 -1.781
H8 -1.487 0.000 -1.781
H9 0.000 2.107 -0.546
H10 0.000 -2.107 -0.546
H11 0.000 1.355 2.096
H12 0.000 -1.355 2.096

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45291.52301.52302.46752.46751.08462.34482.27562.27563.46363.4636
C21.45291.52301.52302.46752.46752.34481.08462.27562.27563.46363.4636
C31.52301.52302.14511.51382.27432.41652.41651.08843.19732.32013.3460
C41.52301.52302.14512.27431.51382.41652.41653.19731.08843.34602.3201
C52.46752.46751.51382.27431.34313.44473.44472.30153.30991.08532.1948
C62.46752.46752.27431.51381.34313.44473.44473.30992.30152.19481.0853
H71.08462.34482.41652.41653.44473.44472.97442.85882.85884.36774.3677
H82.34481.08462.41652.41653.44473.44472.97442.85882.85884.36774.3677
H92.27562.27561.08843.19732.30153.30992.85882.85884.21322.74744.3549
H102.27562.27563.19731.08843.30992.30152.85882.85884.21324.35492.7474
H113.46363.46362.32013.34601.08532.19484.36774.36772.74744.35492.7098
H123.46363.46363.34602.32012.19481.08534.36774.36774.35492.74742.7098

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.510 C1 C2 C4 61.510
C1 C2 H8 134.537 C1 C3 C2 56.979
C1 C3 C5 108.693 C1 C3 H9 120.329
C1 C4 C2 56.979 C1 C4 C6 108.693
C1 C4 H10 120.329 C2 C1 C3 61.510
C2 C1 C4 61.510 C2 C1 H7 134.537
C2 C3 C5 108.693 C2 C3 H9 120.329
C2 C4 C6 108.693 C2 C4 H10 120.329
C3 C1 C4 89.537 C3 C1 H7 135.184
C3 C2 C4 89.537 C3 C2 H8 135.184
C3 C5 C6 105.362 C3 C5 H11 125.614
C4 C1 H7 135.184 C4 C2 H8 135.184
C4 C6 C5 105.362 C4 C6 H12 125.614
C5 C3 H9 123.546 C5 C6 H12 129.024
C6 C4 H10 123.546 C6 C5 H11 129.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability