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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-36.295504
Energy at 298.15K 
HF Energy-36.295504
Nuclear repulsion energy105.752898
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 HF/CEP-121G*
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 3377 3050 11.97 250.99 0.04 0.07
2 A1 3268 2953 66.33 146.90 0.14 0.24
3 A1 1743 1575 0.24 52.18 0.08 0.15
4 A1 1306 1180 4.42 30.11 0.13 0.22
5 A1 1141 1031 0.45 14.75 0.50 0.66
6 A1 1026 927 32.81 11.93 0.27 0.42
7 A1 945 854 0.05 5.67 0.68 0.81
8 A1 886 801 93.61 9.49 0.05 0.09
9 A1 417 377 6.30 7.68 0.55 0.71
10 A2 3342 3020 0.00 157.94 0.75 0.86
11 A2 1428 1290 0.00 8.80 0.75 0.86
12 A2 1318 1191 0.00 7.89 0.75 0.86
13 A2 1044 943 0.00 1.30 0.75 0.86
14 A2 1022 923 0.00 1.65 0.75 0.86
15 A2 854 771 0.00 3.81 0.75 0.86
16 A2 358 323 0.00 2.76 0.75 0.86
17 B1 3374 3048 52.84 62.48 0.75 0.86
18 B1 1712 1547 15.86 0.53 0.75 0.86
19 B1 1350 1220 11.18 0.10 0.75 0.86
20 B1 1186 1071 0.19 0.16 0.75 0.86
21 B1 1073 969 1.83 9.87 0.75 0.86
22 B1 795 718 52.22 2.25 0.75 0.86
23 B2 3344 3021 46.50 42.83 0.75 0.86
24 B2 3258 2943 34.56 127.03 0.75 0.86
25 B2 1417 1280 41.74 0.00 0.75 0.86
26 B2 1283 1159 5.01 0.81 0.75 0.86
27 B2 1063 961 3.33 4.49 0.75 0.86
28 B2 1018 920 6.01 0.17 0.75 0.86
29 B2 912 824 9.92 0.91 0.75 0.86
30 B2 537 485 7.26 4.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22899.3 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 20687.2 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 HF/CEP-121G*
ABC
0.26353 0.14823 0.11626

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.782 0.528
C2 0.000 -0.782 0.528
H3 0.000 1.354 1.449
H4 0.000 -1.354 1.449
C5 -1.307 0.666 -0.267
C6 1.307 0.666 -0.267
C7 1.307 -0.666 -0.267
C8 -1.307 -0.666 -0.267
H9 -1.954 1.407 -0.706
H10 1.954 1.407 -0.706
H11 1.954 -1.407 -0.706
H12 -1.954 -1.407 -0.706

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.56361.08422.32581.53401.53402.10592.10592.39422.39423.18333.1833
C21.56362.32581.08422.10592.10591.53401.53403.18333.18332.39422.3942
H31.08422.32582.70782.26392.26392.95472.95472.90942.90944.01084.0108
H42.32581.08422.70782.95472.95472.26392.26394.01084.01082.90942.9094
C51.53402.10592.26392.95472.61382.93331.33141.07783.37293.88902.2157
C61.53402.10592.26392.95472.61381.33142.93333.37291.07782.21573.8890
C72.10591.53402.95472.26392.93331.33142.61383.88902.21571.07783.3729
C82.10591.53402.95472.26391.33142.93332.61382.21573.88903.37291.0778
H92.39423.18332.90944.01081.07783.37293.88902.21573.90804.81622.8148
H102.39423.18332.90944.01083.37291.07782.21573.88903.90802.81484.8162
H113.18332.39424.01082.90943.88902.21571.07783.37294.81622.81483.9080
H123.18332.39424.01082.90942.21573.88903.37291.07782.81484.81623.9080

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 121.849 C1 C2 H7 85.660
C1 C2 H8 85.660 C1 C5 H8 94.340
C1 C5 H9 132.109 C1 C6 H7 94.340
C1 C6 H10 132.109 C2 C1 C3 121.849
C2 C1 C5 85.660 C2 C1 C6 85.660
C2 H7 C6 94.340 C2 H7 H11 132.109
C2 H8 C5 94.340 C2 H8 H12 132.109
C3 C1 C5 118.689 C3 C1 C6 118.689
C4 C2 H7 118.689 C4 C2 H8 118.689
C5 C1 C6 116.848 C5 H8 H12 133.482
C6 H7 H11 133.482 H7 C6 H10 133.482
H8 C5 H9 133.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.152      
2 C -0.152      
3 H 0.206      
4 H 0.206      
5 C -0.250      
6 C -0.250      
7 C -0.250      
8 C -0.250      
9 H 0.222      
10 H 0.222      
11 H 0.222      
12 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.099 0.099
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.027 0.000 0.000
y 0.000 -32.529 0.000
z 0.000 0.000 -36.606
Traceless
 xyz
x -1.459 0.000 0.000
y 0.000 3.788 0.000
z 0.000 0.000 -2.328
Polar
3z2-r2-4.656
x2-y2-3.498
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.797 0.000 0.000
y 0.000 9.985 0.000
z 0.000 0.000 6.479


<r2> (average value of r2) Å2
<r2> 97.625
(<r2>)1/2 9.881