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

using model chemistry: MP3=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/3-21G
 hartrees
Energy at 0K-229.839957
Energy at 298.15K 
HF Energy-229.264916
Nuclear repulsion energy205.705439
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 MP3=FULL/3-21G
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 3271 3271 4.78      
2 A1 3199 3199 19.67      
3 A1 1611 1611 0.07      
4 A1 1183 1183 3.85      
5 A1 1074 1074 3.55      
6 A1 936 936 15.64      
7 A1 824 824 29.87      
8 A1 815 815 40.63      
9 A1 393 393 4.09      
10 A2 3231 3231 0.00      
11 A2 1313 1313 0.00      
12 A2 1251 1251 0.00      
13 A2 923 923 0.00      
14 A2 904 904 0.00      
15 A2 803 803 0.00      
16 A2 347 347 0.00      
17 B1 3267 3267 31.13      
18 B1 1586 1586 4.63      
19 B1 1252 1252 0.45      
20 B1 1129 1129 0.01      
21 B1 973 973 2.67      
22 B1 744 744 56.52      
23 B2 3233 3233 18.19      
24 B2 3190 3190 7.58      
25 B2 1328 1328 30.58      
26 B2 1168 1168 11.52      
27 B2 976 976 6.19      
28 B2 922 922 0.79      
29 B2 830 830 5.27      
30 B2 496 496 5.29      

Unscaled Zero Point Vibrational Energy (zpe) 21584.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21584.8 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 MP3=FULL/3-21G
ABC
0.24837 0.14619 0.11455

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.815 0.561
C2 0.000 -0.815 0.561
H3 0.000 1.392 1.484
H4 0.000 -1.392 1.484
C5 -1.308 0.675 -0.279
C6 1.308 0.675 -0.279
C7 1.308 -0.675 -0.279
C8 -1.308 -0.675 -0.279
H9 -1.937 1.418 -0.751
H10 1.937 1.418 -0.751
H11 1.937 -1.418 -0.751
H12 -1.937 -1.418 -0.751

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.63081.08782.39221.56131.56132.15412.15412.41652.41653.23503.2350
C21.63082.39221.08782.15412.15411.56131.56133.23503.23502.41652.4165
H31.08782.39222.78362.30922.30923.01533.01532.95782.95784.07984.0798
H42.39221.08782.78363.01533.01532.30922.30924.07984.07982.95782.9578
C51.56132.15412.30923.01532.61672.94481.35071.08193.36313.89122.2365
C61.56132.15412.30923.01532.61671.35072.94483.36311.08192.23653.8912
C72.15411.56133.01532.30922.94481.35072.61673.89122.23651.08193.3631
C82.15411.56133.01532.30921.35072.94482.61672.23653.89123.36311.0819
H92.41653.23502.95784.07981.08193.36313.89122.23653.87494.80232.8367
H102.41653.23502.95784.07983.36311.08192.23653.89123.87492.83674.8023
H113.23502.41654.07982.95783.89122.23651.08193.36314.80232.83673.8749
H123.23502.41654.07982.95782.23653.89123.36311.08192.83674.80233.8749

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 121.998 C1 C2 H7 84.852
C1 C2 H8 84.852 C1 C5 H8 95.148
C1 C5 H9 131.332 C1 C6 H7 95.148
C1 C6 H10 131.332 C2 C1 C3 121.998
C2 C1 C5 84.852 C2 C1 C6 84.852
C2 H7 C6 95.148 C2 H7 H11 131.332
C2 H8 C5 95.148 C2 H8 H12 131.332
C3 C1 C5 120.264 C3 C1 C6 120.264
C4 C2 H7 120.264 C4 C2 H8 120.264
C5 C1 C6 113.863 C5 H8 H12 133.374
C6 H7 H11 133.374 H7 C6 H10 133.374
H8 C5 H9 133.374
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability