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

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-231.726232
Energy at 298.15K 
HF Energy-230.637144
Nuclear repulsion energy209.801512
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/6-311+G(3df,2p)
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 3254 3068 6.93 309.10 0.03 0.05
2 A1 3158 2977 17.59 155.92 0.10 0.18
3 A1 1590 1499 0.20 42.81 0.01 0.02
4 A1 1179 1112 4.47 32.84 0.09 0.16
5 A1 1035 976 2.26 5.37 0.64 0.78
6 A1 970 915 2.91 12.19 0.22 0.36
7 A1 879 829 0.84 3.91 0.45 0.62
8 A1 821 774 76.67 3.35 0.01 0.03
9 A1 391 368 5.12 3.32 0.54 0.70
10 A2 3221 3037 0.00 152.02 0.75 0.86
11 A2 1301 1226 0.00 5.11 0.75 0.86
12 A2 1203 1134 0.00 8.91 0.75 0.86
13 A2 981 925 0.00 0.40 0.75 0.86
14 A2 936 882 0.00 1.30 0.75 0.86
15 A2 777 732 0.00 1.56 0.75 0.86
16 A2 326 307 0.00 0.65 0.75 0.86
17 B1 3252 3066 31.40 62.70 0.75 0.86
18 B1 1565 1475 10.76 0.07 0.75 0.86
19 B1 1212 1143 1.88 0.94 0.75 0.86
20 B1 1114 1050 0.46 0.08 0.75 0.86
21 B1 1026 967 0.02 5.61 0.75 0.86
22 B1 722 681 48.89 0.95 0.75 0.86
23 B2 3223 3038 17.23 42.72 0.75 0.86
24 B2 3152 2972 9.30 107.16 0.75 0.86
25 B2 1309 1234 34.10 0.00 0.75 0.86
26 B2 1162 1096 7.16 0.15 0.75 0.86
27 B2 962 907 2.77 0.81 0.75 0.86
28 B2 917 864 10.82 0.20 0.75 0.86
29 B2 843 794 8.10 0.14 0.75 0.86
30 B2 481 453 4.08 2.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21480.2 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 20249.4 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/6-311+G(3df,2p)
ABC
0.26115 0.15215 0.11829

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.784 0.527
C2 0.000 -0.784 0.527
H3 0.000 1.342 1.460
H4 0.000 -1.342 1.460
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 -1.923 1.418 -0.719
H10 1.923 1.418 -0.719
H11 1.923 -1.418 -0.719
H12 -1.923 -1.418 -0.719

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.56821.08692.32191.51531.51532.09812.09812.37712.37713.17773.1777
C21.56822.32191.08692.09812.09811.51531.51533.17773.17772.37712.3771
H31.08692.32192.68452.25422.25422.94722.94722.90652.90654.00764.0076
H42.32191.08692.68452.94722.94722.25422.25424.00764.00762.90652.9065
C51.51532.09812.25422.94722.57352.90281.34291.08053.32633.85652.2307
C61.51532.09812.25422.94722.57351.34292.90283.32631.08052.23073.8565
C72.09811.51532.94722.25422.90281.34292.57353.85652.23071.08053.3263
C82.09811.51532.94722.25421.34292.90282.57352.23073.85653.32631.0805
H92.37713.17772.90654.00761.08053.32633.85652.23073.84574.77842.8360
H102.37713.17772.90654.00763.32631.08052.23073.85653.84572.83604.7784
H113.17772.37714.00762.90653.85652.23071.08053.32634.77842.83603.8457
H123.17772.37714.00762.90652.23073.85653.32631.08052.83604.77843.8457

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 120.899 C1 C2 H7 85.737
C1 C2 H8 85.737 C1 C5 H8 94.263
C1 C5 H9 131.905 C1 C6 H7 94.263
C1 C6 H10 131.905 C2 C1 C3 120.899
C2 C1 C5 85.737 C2 C1 C6 85.737
C2 H7 C6 94.263 C2 H7 H11 131.905
C2 H8 C5 94.263 C2 H8 H12 131.905
C3 C1 C5 119.133 C3 C1 C6 119.133
C4 C2 H7 119.133 C4 C2 H8 119.133
C5 C1 C6 116.243 C5 H8 H12 133.707
C6 H7 H11 133.707 H7 C6 H10 133.707
H8 C5 H9 133.707
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability