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

using model chemistry: MP2=FULL/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=FULL/STO-3G
 hartrees
Energy at 0K-228.126903
Energy at 298.15K 
HF Energy-227.760692
Nuclear repulsion energy205.364561
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/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3548 3154 0.07 114.13 0.03 0.07
2 A1 3470 3084 2.20 52.27 0.20 0.33
3 A1 1686 1498 0.01 5.13 0.20 0.34
4 A1 1309 1163 0.34 8.10 0.39 0.56
5 A1 1146 1019 0.63 15.46 0.62 0.77
6 A1 1053 936 3.75 18.61 0.39 0.56
7 A1 967 859 0.01 6.51 0.58 0.73
8 A1 861 765 25.25 3.32 0.38 0.55
9 A1 411 365 0.36 6.62 0.68 0.81
10 A2 3509 3119 0.00 74.40 0.75 0.86
11 A2 1453 1292 0.00 5.85 0.75 0.86
12 A2 1319 1173 0.00 8.48 0.75 0.86
13 A2 1064 946 0.00 0.14 0.75 0.86
14 A2 987 877 0.00 0.23 0.75 0.86
15 A2 859 764 0.00 5.63 0.75 0.86
16 A2 358 318 0.00 1.40 0.75 0.86
17 B1 3546 3152 0.61 22.77 0.75 0.86
18 B1 1662 1477 2.77 0.48 0.75 0.86
19 B1 1361 1210 4.67 2.16 0.75 0.86
20 B1 1190 1058 4.99 0.85 0.75 0.86
21 B1 1110 987 2.11 13.61 0.75 0.86
22 B1 775 689 15.99 2.77 0.75 0.86
23 B2 3509 3119 4.31 15.82 0.75 0.86
24 B2 3459 3075 0.47 54.27 0.75 0.86
25 B2 1436 1276 14.24 0.04 0.75 0.86
26 B2 1279 1137 0.76 1.08 0.75 0.86
27 B2 1034 919 7.50 0.47 0.75 0.86
28 B2 1003 892 0.39 0.08 0.75 0.86
29 B2 933 829 0.07 2.41 0.75 0.86
30 B2 553 491 2.76 4.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23424.2 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 20821.8 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/STO-3G
ABC
0.25064 0.14520 0.11340

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.480
H4 0.000 -1.393 1.480
C5 -1.316 0.681 -0.275
C6 1.316 0.681 -0.275
C7 1.316 -0.681 -0.275
C8 -1.316 -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
C11.59901.10662.38291.55571.55572.14442.14442.43102.43103.24383.2438
C21.59902.38291.10662.14442.14441.55571.55573.24383.24382.43102.4310
H31.10662.38292.78532.30622.30623.01883.01882.95952.95954.09804.0980
H42.38291.10662.78533.01883.01882.30622.30624.09804.09802.95952.9595
C51.55572.14442.30623.01882.63272.96431.36241.10003.40013.93592.2672
C61.55572.14442.30623.01882.63271.36242.96433.40011.10002.26723.9359
C72.14441.55573.01882.30622.96431.36242.63273.93592.26721.10003.4001
C82.14441.55573.01882.30621.36242.96432.63272.26723.93593.40011.1000
H92.43103.24382.95954.09801.10003.40013.93592.26723.93184.87652.8847
H102.43103.24382.95954.09803.40011.10002.26723.93593.93182.88474.8765
H113.24382.43104.09802.95953.93592.26721.10003.40014.87652.88473.9318
H123.24382.43104.09802.95952.26723.93593.40011.10002.88474.87653.9318

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 122.411 C1 C2 H7 85.638
C1 C2 H8 85.638 C1 C5 H8 94.362
C1 C5 H9 131.765 C1 C6 H7 94.362
C1 C6 H10 131.765 C2 C1 C3 122.411
C2 C1 C5 85.638 C2 C1 C6 85.638
C2 H7 C6 94.362 C2 H7 H11 131.765
C2 H8 C5 94.362 C2 H8 H12 131.765
C3 C1 C5 119.084 C3 C1 C6 119.084
C4 C2 H7 119.084 C4 C2 H8 119.084
C5 C1 C6 115.591 C5 H8 H12 133.788
C6 H7 H11 133.788 H7 C6 H10 133.788
H8 C5 H9 133.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability