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All results from a given calculation for C6H6 (Benzene)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D6H 1A1g
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-36.773366
Energy at 298.15K-36.779440
HF Energy-36.311316
Nuclear repulsion energy100.091508
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/CEP-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3202 3094 0.00 323.92 0.24 0.38
2 A1g 968 935 0.00 64.71 0.13 0.23
3 A2g 1372 1325 0.00 0.00 0.00 0.00
4 A2u 695 671 186.89 0.00 0.00 0.00
5 B1u 3131 3025 0.00 0.00 0.00 0.00
6 B1u 1004 970 0.00 0.00 0.00 0.00
7 B2g 869 839 0.00 0.00 0.75 0.86
8 B2g 591 571 0.00 0.00 0.75 0.86
9 B2u 1386 1339 0.00 0.00 0.00 0.00
10 B2u 1178 1139 0.00 0.00 0.00 0.00
11 E1g 835 807 0.00 9.10 0.75 0.86
11 E1g 835 807 0.00 9.10 0.75 0.86
12 E1u 3182 3075 86.90 0.00 0.00 0.00
12 E1u 3182 3075 86.90 0.00 0.00 0.00
13 E1u 1480 1430 9.79 0.00 0.00 0.00
13 E1u 1480 1430 9.79 0.00 0.00 0.00
14 E1u 1041 1006 7.03 0.00 0.00 0.00
14 E1u 1041 1006 7.03 0.00 0.00 0.00
15 E2g 3150 3044 0.00 83.39 0.75 0.86
15 E2g 3150 3044 0.00 83.39 0.75 0.86
16 E2g 1600 1546 0.00 10.13 0.75 0.86
16 E2g 1600 1546 0.00 10.13 0.75 0.86
17 E2g 1202 1162 0.00 4.43 0.75 0.86
17 E2g 1202 1162 0.00 4.43 0.75 0.86
18 E2g 600 579 0.00 9.34 0.75 0.86
18 E2g 600 579 0.00 9.34 0.75 0.86
19 E2u 882 853 0.00 0.00 0.00 0.00
19 E2u 882 853 0.00 0.00 0.00 0.00
20 E2u 396 383 0.00 0.00 0.00 0.00
20 E2u 396 383 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 21564.3 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 20837.6 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/CEP-31G
ABC
0.17834 0.17834 0.08917

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is D6h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.443 0.000
C2 1.250 0.721 0.000
C3 1.250 -0.721 0.000
C4 0.000 -1.443 0.000
C5 -1.250 -0.721 0.000
C6 -1.250 0.721 0.000
H7 0.000 2.544 0.000
H8 2.203 1.272 0.000
H9 2.203 -1.272 0.000
H10 0.000 -2.544 0.000
H11 -2.203 -1.272 0.000
H12 -2.203 1.272 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.44302.49932.88592.49931.44301.10112.20993.49653.98713.49652.2099
C21.44301.44302.49932.88592.49932.20991.10112.20993.49653.98713.4965
C32.49931.44301.44302.49932.88593.49652.20991.10112.20993.49653.9871
C42.88592.49931.44301.44302.49933.98713.49652.20991.10112.20993.4965
C52.49932.88592.49931.44301.44303.49653.98713.49652.20991.10112.2099
C61.44302.49932.88592.49931.44302.20993.49653.98713.49652.20991.1011
H71.10112.20993.49653.98713.49652.20992.54414.40655.08824.40652.5441
H82.20991.10112.20993.49653.98713.49652.54412.54414.40655.08824.4065
H93.49652.20991.10112.20993.49653.98714.40652.54412.54414.40655.0882
H103.98713.49652.20991.10112.20993.49655.08824.40652.54412.54414.4065
H113.49653.98713.49652.20991.10112.20994.40655.08824.40652.54412.5441
H122.20993.49653.98713.49652.20991.10112.54414.40655.08824.40652.5441

picture of Benzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.000 C1 C2 H8 120.000
C1 C6 C5 120.000 C1 C6 H12 120.000
C2 C1 C6 120.000 C2 C1 H7 120.000
C2 C3 C4 120.000 C2 C3 H9 120.000
C3 C2 H8 120.000 C3 C4 C5 120.000
C3 C4 H10 120.000 C4 C3 H9 120.000
C4 C5 C6 120.000 C4 C5 H11 120.000
C5 C4 H10 120.000 C5 C6 H12 120.000
C6 C1 H7 120.000 C6 C5 H11 120.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability