return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULLultrafine/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/STO-3G
 hartrees
Energy at 0K-228.897576
Energy at 298.15K 
HF Energy-228.772751
Nuclear repulsion energy206.142733
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 B2PLYP=FULLultrafine/STO-3G
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 3532 3532 0.00 121.53 0.03 0.06
2 A1 3447 3447 0.92 59.41 0.19 0.32
3 A1 1739 1739 0.00 12.38 0.04 0.08
4 A1 1305 1305 0.77 10.68 0.39 0.56
5 A1 1138 1138 0.74 17.79 0.61 0.76
6 A1 1042 1042 3.92 19.30 0.37 0.54
7 A1 962 962 0.01 6.29 0.59 0.74
8 A1 861 861 31.90 3.46 0.33 0.49
9 A1 409 409 0.66 6.89 0.66 0.80
10 A2 3486 3486 0.00 83.27 0.75 0.86
11 A2 1431 1431 0.00 6.22 0.75 0.86
12 A2 1303 1303 0.00 10.07 0.75 0.86
13 A2 1050 1050 0.00 0.05 0.75 0.86
14 A2 986 986 0.00 0.08 0.75 0.86
15 A2 859 859 0.00 6.26 0.75 0.86
16 A2 360 360 0.00 1.68 0.75 0.86
17 B1 3530 3530 0.05 24.15 0.75 0.86
18 B1 1714 1714 1.70 0.70 0.75 0.86
19 B1 1337 1337 2.84 2.60 0.75 0.86
20 B1 1181 1181 3.93 0.35 0.75 0.86
21 B1 1097 1097 1.30 13.90 0.75 0.86
22 B1 776 776 20.22 2.85 0.75 0.86
23 B2 3487 3487 13.16 16.89 0.75 0.86
24 B2 3436 3436 0.39 61.80 0.75 0.86
25 B2 1419 1419 25.33 0.05 0.75 0.86
26 B2 1263 1263 2.17 0.81 0.75 0.86
27 B2 1030 1030 8.13 0.77 0.75 0.86
28 B2 1006 1006 0.12 0.25 0.75 0.86
29 B2 923 923 0.29 2.10 0.75 0.86
30 B2 547 547 3.46 4.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23327.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 23327.9 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 B2PLYP=FULLultrafine/STO-3G
ABC
0.25355 0.14576 0.11408

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.796 0.543
C2 0.000 -0.796 0.543
H3 0.000 1.387 1.475
H4 0.000 -1.387 1.475
C5 -1.315 0.675 -0.274
C6 1.315 0.675 -0.274
C7 1.315 -0.675 -0.274
C8 -1.315 -0.675 -0.274
H9 -1.962 1.437 -0.725
H10 1.962 1.437 -0.725
H11 1.962 -1.437 -0.725
H12 -1.962 -1.437 -0.725

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.59291.10332.37401.55251.55252.13572.13572.42232.42233.23193.2319
C21.59292.37401.10332.13572.13571.55251.55253.23193.23192.42232.4223
H31.10332.37402.77402.30082.30083.00653.00652.94812.94814.08214.0821
H42.37401.10332.77403.00653.00652.30082.30084.08214.08212.94812.9481
C51.55252.13572.30083.00652.62922.95561.35031.09683.39413.92432.2546
C61.55252.13572.30083.00652.62921.35032.95563.39411.09682.25463.9243
C72.13571.55253.00652.30082.95561.35032.62923.92432.25461.09683.3941
C82.13571.55253.00652.30081.35032.95562.62922.25463.92433.39411.0968
H92.42233.23192.94814.08211.09683.39413.92432.25463.92414.86392.8739
H102.42233.23192.94814.08213.39411.09682.25463.92433.92412.87394.8639
H113.23192.42234.08212.94813.92432.25461.09683.39414.86392.87393.9241
H123.23192.42234.08212.94812.25463.92433.39411.09682.87394.86393.9241

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 122.362 C1 C2 H7 85.518
C1 C2 H8 85.518 C1 C5 H8 94.482
C1 C5 H9 131.449 C1 C6 H7 94.482
C1 C6 H10 131.449 C2 C1 C3 122.362
C2 C1 C5 85.518 C2 C1 C6 85.518
C2 H7 C6 94.482 C2 H7 H11 131.449
C2 H8 C5 94.482 C2 H8 H12 131.449
C3 C1 C5 119.100 C3 C1 C6 119.100
C4 C2 H7 119.100 C4 C2 H8 119.100
C5 C1 C6 115.716 C5 H8 H12 133.995
C6 H7 H11 133.995 H7 C6 H10 133.995
H8 C5 H9 133.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability