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All results from a given calculation for C6H6 (Benzene)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D6H 1A1g
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-231.457734
Energy at 298.15K-231.463826
HF Energy-230.701831
Nuclear repulsion energy203.155534
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 MP2/6-31G*
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 3250 3065 0.00 345.74 0.10 0.19
2 A1g 1028 969 0.00 50.07 0.10 0.19
3 A2g 1391 1312 0.00 0.00 0.41 0.58
4 A2u 686 647 99.70 0.00 0.00 0.00
5 B1u 3216 3033 0.00 0.00 0.75 0.86
6 B1u 1023 965 0.00 0.00 0.00 0.00
7 B2g 899 848 0.00 0.00 0.75 0.86
8 B2g 506 477 0.00 0.00 0.75 0.86
9 B2u 1464 1381 0.00 0.00 0.75 0.86
10 B2u 1210 1141 0.00 0.00 0.75 0.86
11 E1g 845 797 0.00 5.88 0.75 0.86
11 E1g 845 797 0.00 5.88 0.75 0.86
12 E1u 3241 3056 34.27 0.00 0.00 0.00
12 E1u 3241 3056 34.27 0.00 0.31 0.00
13 E1u 1540 1452 9.68 0.00 0.00 0.00
13 E1u 1540 1452 9.68 0.00 0.00 0.00
14 E1u 1084 1022 3.79 0.00 0.00 0.00
14 E1u 1084 1022 3.79 0.00 0.00 0.00
15 E2g 3226 3042 0.00 122.87 0.75 0.86
15 E2g 3226 3042 0.00 122.87 0.75 0.86
16 E2g 1672 1577 0.00 9.67 0.75 0.86
16 E2g 1672 1577 0.00 9.67 0.75 0.86
17 E2g 1230 1160 0.00 9.42 0.75 0.86
17 E2g 1230 1160 0.00 9.42 0.75 0.86
18 E2g 620 585 0.00 3.43 0.75 0.86
18 E2g 620 585 0.00 3.43 0.75 0.86
19 E2u 895 844 0.00 0.00 0.00 0.00
19 E2u 895 844 0.00 0.00 0.00 0.00
20 E2u 397 375 0.00 0.00 0.00 0.00
20 E2u 397 375 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 22086.5 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 20827.5 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 MP2/6-31G*
ABC
0.18964 0.18964 0.09482

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is D6h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.397 0.000
C2 1.210 0.698 0.000
C3 1.210 -0.698 0.000
C4 0.000 -1.397 0.000
C5 -1.210 -0.698 0.000
C6 -1.210 0.698 0.000
H7 0.000 2.484 0.000
H8 2.151 1.242 0.000
H9 2.151 -1.242 0.000
H10 0.000 -2.484 0.000
H11 -2.151 -1.242 0.000
H12 -2.151 1.242 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.39682.41932.79362.41931.39681.08742.15693.40473.88103.40472.1569
C21.39681.39682.41932.79352.41932.15691.08742.15693.40473.88103.4047
C32.41931.39681.39682.41932.79353.40472.15691.08742.15693.40473.8810
C42.79362.41931.39681.39682.41933.88103.40472.15691.08742.15693.4047
C52.41932.79352.41931.39681.39683.40473.88103.40472.15691.08742.1569
C61.39682.41932.79352.41931.39682.15693.40473.88103.40472.15691.0874
H71.08742.15693.40473.88103.40472.15692.48424.30284.96844.30282.4842
H82.15691.08742.15693.40473.88103.40472.48422.48424.30284.96844.3028
H93.40472.15691.08742.15693.40473.88104.30282.48422.48424.30284.9684
H103.88103.40472.15691.08742.15693.40474.96844.30282.48422.48424.3028
H113.40473.88103.40472.15691.08742.15694.30284.96844.30282.48422.4842
H122.15693.40473.88103.40472.15691.08742.48424.30284.96844.30282.4842

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
Charges, Dipole, Quadrupole and Polarizability