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

using model chemistry: MP2/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 MP2/STO-3G
 hartrees
Energy at 0K-228.124197
Energy at 298.15K 
HF Energy-227.760578
Nuclear repulsion energy205.329606
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 MP2/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 3547 3093 0.07 114.21 0.03 0.07
2 A1 3469 3025 2.20 52.31 0.20 0.33
3 A1 1685 1469 0.01 5.13 0.20 0.34
4 A1 1308 1141 0.34 8.11 0.39 0.56
5 A1 1146 999 0.64 15.49 0.62 0.77
6 A1 1052 918 3.76 18.60 0.39 0.56
7 A1 967 843 0.01 6.52 0.58 0.73
8 A1 861 750 25.27 3.33 0.38 0.55
9 A1 411 358 0.36 6.63 0.68 0.81
10 A2 3509 3059 0.00 74.46 0.75 0.86
11 A2 1453 1267 0.00 5.84 0.75 0.86
12 A2 1319 1150 0.00 8.49 0.75 0.86
13 A2 1064 928 0.00 0.13 0.75 0.86
14 A2 987 860 0.00 0.23 0.75 0.86
15 A2 859 749 0.00 5.64 0.75 0.86
16 A2 358 312 0.00 1.40 0.75 0.86
17 B1 3546 3091 0.61 22.79 0.75 0.86
18 B1 1661 1448 2.79 0.48 0.75 0.86
19 B1 1361 1186 4.71 2.16 0.75 0.86
20 B1 1190 1038 5.00 0.83 0.75 0.86
21 B1 1110 968 2.11 13.64 0.75 0.86
22 B1 775 676 16.00 2.77 0.75 0.86
23 B2 3509 3059 4.31 15.86 0.75 0.86
24 B2 3459 3016 0.47 54.28 0.75 0.86
25 B2 1436 1252 14.23 0.04 0.75 0.86
26 B2 1278 1115 0.75 1.09 0.75 0.86
27 B2 1034 901 7.49 0.47 0.75 0.86
28 B2 1003 874 0.39 0.08 0.75 0.86
29 B2 932 813 0.07 2.41 0.75 0.86
30 B2 553 482 2.76 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23419.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 20419.2 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 MP2/STO-3G
ABC
0.25055 0.14515 0.11336

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.800 0.546
C2 0.000 -0.800 0.546
H3 0.000 1.393 1.481
H4 0.000 -1.393 1.481
C5 -1.317 0.681 -0.275
C6 1.317 0.681 -0.275
C7 1.317 -0.681 -0.275
C8 -1.317 -0.681 -0.275
H9 -1.966 1.442 -0.731
H10 1.966 1.442 -0.731
H11 1.966 -1.442 -0.731
H12 -1.966 -1.442 -0.731

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.59941.10672.38341.55601.55602.14482.14482.43132.43133.24433.2443
C21.59942.38341.10672.14482.14481.55601.55603.24433.24432.43132.4313
H31.10672.38342.78602.30662.30663.01933.01932.95992.95994.09864.0986
H42.38341.10672.78603.01933.01932.30662.30664.09864.09862.95992.9599
C51.55602.14482.30663.01932.63312.96481.36261.10003.40063.93642.2674
C61.55602.14482.30663.01932.63311.36262.96483.40061.10002.26743.9364
C72.14481.55603.01932.30662.96481.36262.63313.93642.26741.10003.4006
C82.14481.55603.01932.30661.36262.96482.63312.26743.93643.40061.1000
H92.43133.24432.95994.09861.10003.40063.93642.26743.93234.87712.8850
H102.43133.24432.95994.09863.40061.10002.26743.93643.93232.88504.8771
H113.24432.43134.09862.95993.93642.26741.10003.40064.87712.88503.9323
H123.24432.43134.09862.95992.26743.93643.40061.10002.88504.87713.9323

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 122.418 C1 C2 H7 85.636
C1 C2 H8 85.636 C1 C5 H8 94.364
C1 C5 H9 131.764 C1 C6 H7 94.364
C1 C6 H10 131.764 C2 C1 C3 122.418
C2 C1 C5 85.636 C2 C1 C6 85.636
C2 H7 C6 94.364 C2 H7 H11 131.764
C2 H8 C5 94.364 C2 H8 H12 131.764
C3 C1 C5 119.085 C3 C1 C6 119.085
C4 C2 H7 119.085 C4 C2 H8 119.085
C5 C1 C6 115.584 C5 H8 H12 133.787
C6 H7 H11 133.787 H7 C6 H10 133.787
H8 C5 H9 133.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability