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

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-229.268310
Energy at 298.15K 
HF Energy-229.268310
Nuclear repulsion energy208.532151
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/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 3435 3100 4.42 208.93 0.02 0.05
2 A1 3335 3010 22.01 109.97 0.18 0.31
3 A1 1752 1581 0.03 31.38 0.12 0.21
4 A1 1271 1147 6.54 22.12 0.21 0.35
5 A1 1147 1035 3.22 12.99 0.72 0.84
6 A1 1011 912 46.10 13.80 0.33 0.50
7 A1 901 813 68.39 11.51 0.01 0.02
8 A1 892 805 2.47 9.68 0.67 0.80
9 A1 428 386 4.78 11.47 0.63 0.77
10 A2 3393 3063 0.00 130.35 0.75 0.86
11 A2 1398 1262 0.00 2.10 0.75 0.86
12 A2 1321 1192 0.00 13.80 0.75 0.86
13 A2 1099 992 0.00 0.26 0.75 0.86
14 A2 977 882 0.00 0.06 0.75 0.86
15 A2 878 793 0.00 6.86 0.75 0.86
16 A2 382 345 0.00 3.85 0.75 0.86
17 B1 3431 3096 29.46 44.16 0.75 0.86
18 B1 1723 1555 6.98 1.99 0.75 0.86
19 B1 1321 1192 2.10 1.04 0.75 0.86
20 B1 1190 1074 0.01 0.18 0.75 0.86
21 B1 1029 929 6.94 13.57 0.75 0.86
22 B1 835 753 64.22 1.87 0.75 0.86
23 B2 3395 3065 14.99 35.82 0.75 0.86
24 B2 3325 3001 11.89 111.74 0.75 0.86
25 B2 1414 1276 37.71 0.01 0.75 0.86
26 B2 1263 1140 13.11 0.90 0.75 0.86
27 B2 1114 1006 5.57 2.15 0.75 0.86
28 B2 1059 956 2.26 0.11 0.75 0.86
29 B2 895 808 8.51 2.87 0.75 0.86
30 B2 541 488 8.64 7.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23076.6 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 20828.9 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 HF/3-21G*
ABC
0.25652 0.14947 0.11764

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.799 0.557
C2 0.000 -0.799 0.557
H3 0.000 1.381 1.460
H4 0.000 -1.381 1.460
C5 -1.293 0.663 -0.278
C6 1.293 0.663 -0.278
C7 1.293 -0.663 -0.278
C8 -1.293 -0.663 -0.278
H9 -1.925 1.396 -0.730
H10 1.925 1.396 -0.730
H11 1.925 -1.396 -0.730
H12 -1.925 -1.396 -0.730

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.59751.07532.35991.54511.54512.12272.12272.39122.39123.19013.1901
C21.59752.35991.07532.12272.12271.54511.54513.19013.19012.39122.3912
H31.07532.35992.76252.28272.28272.97902.97902.91622.91624.02694.0269
H42.35991.07532.76252.97902.97902.28272.28274.02694.02692.91622.9162
C51.54512.12272.28272.97902.58592.90611.32621.06793.33123.84692.2005
C61.54512.12272.28272.97902.58591.32622.90613.33121.06792.20053.8469
C72.12271.54512.97902.28272.90611.32622.58593.84692.20051.06793.3312
C82.12271.54512.97902.28271.32622.90612.58592.20053.84693.33121.0679
H92.39123.19012.91624.02691.06793.33123.84692.20053.85034.75572.7914
H102.39123.19012.91624.02693.33121.06792.20053.84693.85032.79144.7557
H113.19012.39124.02692.91623.84692.20051.06793.33124.75572.79143.8503
H123.19012.39124.02692.91622.20053.84693.33121.06792.79144.75573.8503

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 122.802 C1 C2 H7 84.963
C1 C2 H8 84.963 C1 C5 H8 95.037
C1 C5 H9 131.584 C1 C6 H7 95.037
C1 C6 H10 131.584 C2 C1 C3 122.802
C2 C1 C5 84.963 C2 C1 C6 84.963
C2 H7 C6 95.037 C2 H7 H11 131.584
C2 H8 C5 95.037 C2 H8 H12 131.584
C3 C1 C5 120.118 C3 C1 C6 120.118
C4 C2 H7 120.118 C4 C2 H8 120.118
C5 C1 C6 113.611 C5 H8 H12 133.319
C6 H7 H11 133.319 H7 C6 H10 133.319
H8 C5 H9 133.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.340      
2 C -0.340      
3 H 0.225      
4 H 0.225      
5 C -0.168      
6 C -0.168      
7 C -0.168      
8 C -0.168      
9 H 0.225      
10 H 0.225      
11 H 0.225      
12 H 0.225      


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 -0.078 0.078
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.885 0.000 0.000
y 0.000 -33.299 0.000
z 0.000 0.000 -36.749
Traceless
 xyz
x -0.861 0.000 0.000
y 0.000 3.018 0.000
z 0.000 0.000 -2.156
Polar
3z2-r2-4.313
x2-y2-2.586
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.242 0.000 0.000
y 0.000 9.004 0.000
z 0.000 0.000 4.942


<r2> (average value of r2) Å2
<r2> 118.789
(<r2>)1/2 10.899