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=FULL/daug-cc-pVTZ

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=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-232.021970
Energy at 298.15K 
HF Energy-231.667748
Nuclear repulsion energy209.301500
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=FULL/daug-cc-pVTZ
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 3225 3225 8.11 319.58 0.03 0.06
2 A1 3127 3127 26.37 164.14 0.11 0.19
3 A1 1608 1608 0.12 60.70 0.01 0.02
4 A1 1177 1177 4.28 32.76 0.09 0.17
5 A1 1038 1038 2.46 7.27 0.57 0.73
6 A1 952 952 6.94 12.61 0.20 0.33
7 A1 865 865 0.85 3.98 0.49 0.66
8 A1 822 822 76.27 4.38 0.03 0.05
9 A1 391 391 4.83 4.03 0.52 0.69
10 A2 3191 3191 0.00 167.57 0.75 0.86
11 A2 1292 1292 0.00 4.71 0.75 0.86
12 A2 1201 1201 0.00 9.91 0.75 0.86
13 A2 963 963 0.00 0.16 0.75 0.86
14 A2 943 943 0.00 2.13 0.75 0.86
15 A2 790 790 0.00 1.89 0.75 0.86
16 A2 338 338 0.00 0.75 0.75 0.86
17 B1 3222 3222 36.12 66.71 0.75 0.86
18 B1 1583 1583 14.33 0.05 0.75 0.86
19 B1 1211 1211 2.21 1.44 0.75 0.86
20 B1 1106 1106 0.38 0.02 0.75 0.86
21 B1 1007 1007 0.38 5.87 0.75 0.86
22 B1 727 727 46.93 0.83 0.75 0.86
23 B2 3193 3193 24.57 45.28 0.75 0.86
24 B2 3120 3120 14.24 117.12 0.75 0.86
25 B2 1305 1305 36.89 0.00 0.75 0.86
26 B2 1164 1164 7.12 0.18 0.75 0.86
27 B2 974 974 2.91 1.41 0.75 0.86
28 B2 937 937 6.56 0.15 0.75 0.86
29 B2 839 839 10.59 0.26 0.75 0.86
30 B2 489 489 4.76 2.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21399.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21399.5 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=FULL/daug-cc-pVTZ
ABC
0.26244 0.15021 0.11703

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.786 0.523
C2 0.000 -0.786 0.523
H3 0.000 1.348 1.453
H4 0.000 -1.348 1.453
C5 -1.298 0.669 -0.264
C6 1.298 0.669 -0.264
C7 1.298 -0.669 -0.264
C8 -1.298 -0.669 -0.264
H9 -1.940 1.413 -0.710
H10 1.940 1.413 -0.710
H11 1.940 -1.413 -0.710
H12 -1.940 -1.413 -0.710

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.57281.08602.32791.52261.52262.10282.10282.38282.38283.18173.1817
C21.57282.32791.08602.10282.10281.52261.52263.18173.18172.38282.3828
H31.08602.32792.69572.25702.25702.94952.94952.90622.90624.00824.0082
H42.32791.08602.69572.94952.94952.25702.25704.00824.00822.90622.9062
C51.52262.10282.25702.94952.59562.91991.33751.07963.35213.87522.2240
C61.52262.10282.25702.94952.59561.33752.91993.35211.07962.22403.8752
C72.10281.52262.94952.25702.91991.33752.59563.87522.22401.07963.3521
C82.10281.52262.94952.25701.33752.91992.59562.22403.87523.35211.0796
H92.38283.18172.90624.00821.07963.35213.87522.22403.88024.80062.8267
H102.38283.18172.90624.00823.35211.07962.22403.87523.88022.82674.8006
H113.18172.38284.00822.90623.87522.22401.07963.35214.80062.82673.8802
H123.18172.38284.00822.90622.22403.87523.35211.07962.82674.80063.8802

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 121.129 C1 C2 H7 85.569
C1 C2 H8 85.569 C1 C5 H8 94.431
C1 C5 H9 131.860 C1 C6 H7 94.431
C1 C6 H10 131.860 C2 C1 C3 121.129
C2 C1 C5 85.569 C2 C1 C6 85.569
C2 H7 C6 94.431 C2 H7 H11 131.860
C2 H8 C5 94.431 C2 H8 H12 131.860
C3 C1 C5 118.862 C3 C1 C6 118.862
C4 C2 H7 118.862 C4 C2 H8 118.862
C5 C1 C6 116.935 C5 H8 H12 133.606
C6 H7 H11 133.606 H7 C6 H10 133.606
H8 C5 H9 133.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability