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: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-231.693149
Energy at 298.15K 
HF Energy-230.641182
Nuclear repulsion energy210.031288
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=FULL/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 3266 3100 6.62 288.64 0.03 0.07
2 A1 3174 3013 19.50 147.18 0.11 0.20
3 A1 1599 1518 0.15 21.13 0.02 0.04
4 A1 1187 1127 4.49 23.67 0.13 0.22
5 A1 1043 990 2.37 7.38 0.73 0.84
6 A1 971 922 3.43 10.75 0.22 0.35
7 A1 880 835 1.09 4.46 0.68 0.81
8 A1 828 786 72.82 4.07 0.04 0.07
9 A1 393 373 4.33 6.98 0.60 0.75
10 A2 3224 3061 0.00 154.79 0.75 0.86
11 A2 1304 1238 0.00 4.01 0.75 0.86
12 A2 1204 1143 0.00 10.32 0.75 0.86
13 A2 981 932 0.00 0.24 0.75 0.86
14 A2 929 882 0.00 0.74 0.75 0.86
15 A2 784 745 0.00 1.81 0.75 0.86
16 A2 330 313 0.00 1.47 0.75 0.86
17 B1 3263 3098 32.22 68.27 0.75 0.86
18 B1 1575 1495 7.86 1.10 0.75 0.86
19 B1 1217 1155 2.00 0.97 0.75 0.86
20 B1 1118 1061 0.37 0.09 0.75 0.86
21 B1 1027 975 0.02 6.25 0.75 0.86
22 B1 730 693 46.90 2.76 0.75 0.86
23 B2 3227 3064 17.96 40.86 0.75 0.86
24 B2 3165 3005 8.92 111.48 0.75 0.86
25 B2 1314 1248 34.09 0.01 0.75 0.86
26 B2 1170 1111 7.05 0.44 0.75 0.86
27 B2 958 910 4.52 0.26 0.75 0.86
28 B2 928 881 7.81 0.32 0.75 0.86
29 B2 845 802 8.65 0.65 0.75 0.86
30 B2 485 460 4.49 3.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21559.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 20468.6 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=FULL/cc-pVTZ
ABC
0.26202 0.15231 0.11839

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.784 0.526
C2 0.000 -0.784 0.526
H3 0.000 1.342 1.453
H4 0.000 -1.342 1.453
C5 -1.287 0.671 -0.265
C6 1.287 0.671 -0.265
C7 1.287 -0.671 -0.265
C8 -1.287 -0.671 -0.265
H9 -1.922 1.413 -0.715
H10 1.922 1.413 -0.715
H11 1.922 -1.413 -0.715
H12 -1.922 -1.413 -0.715

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.56841.08242.32001.51431.51432.09682.09682.37282.37283.17233.1723
C21.56842.32001.08242.09682.09681.51431.51433.17233.17232.37282.3728
H31.08242.32002.68462.24892.24892.94242.94242.89852.89853.99863.9986
H42.32001.08242.68462.94242.94242.24892.24893.99863.99862.89852.8985
C51.51432.09682.24892.94242.57342.90191.34111.07633.32443.85262.2246
C61.51432.09682.24892.94242.57341.34112.90193.32441.07632.22463.8526
C72.09681.51432.94242.24892.90191.34112.57343.85262.22461.07633.3244
C82.09681.51432.94242.24891.34112.90192.57342.22463.85263.32441.0763
H92.37283.17232.89853.99861.07633.32443.85262.22463.84454.77162.8264
H102.37283.17232.89853.99863.32441.07632.22463.85263.84452.82644.7716
H113.17232.37283.99862.89853.85262.22461.07633.32444.77162.82643.8445
H123.17232.37283.99862.89852.22463.85263.32441.07632.82644.77163.8445

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 121.036 C1 C2 H7 85.695
C1 C2 H8 85.695 C1 C5 H8 94.305
C1 C5 H9 131.943 C1 C6 H7 94.305
C1 C6 H10 131.943 C2 C1 C3 121.036
C2 C1 C5 85.695 C2 C1 C6 85.695
C2 H7 C6 94.305 C2 H7 H11 131.943
C2 H8 C5 94.305 C2 H8 H12 131.943
C3 C1 C5 119.072 C3 C1 C6 119.072
C4 C2 H7 119.072 C4 C2 H8 119.072
C5 C1 C6 116.356 C5 H8 H12 133.631
C6 H7 H11 133.631 H7 C6 H10 133.631
H8 C5 H9 133.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability