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

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-231.444761
Energy at 298.15K 
HF Energy-230.649168
Nuclear repulsion energy210.577799
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 CISD/Def2TZVPP
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 3347 3347 5.88      
2 A1 3247 3247 29.02      
3 A1 1718 1718 0.15      
4 A1 1260 1260 4.50      
5 A1 1106 1106 1.17      
6 A1 1009 1009 14.76      
7 A1 924 924 0.24      
8 A1 873 873 77.27      
9 A1 409 409 4.79      
10 A2 3313 3313 0.00      
11 A2 1381 1381 0.00      
12 A2 1276 1276 0.00      
13 A2 1027 1027 0.00      
14 A2 1004 1004 0.00      
15 A2 826 826 0.00      
16 A2 350 350 0.00      
17 B1 3345 3345 28.84      
18 B1 1691 1691 11.38      
19 B1 1300 1300 5.58      
20 B1 1164 1164 0.20      
21 B1 1061 1061 0.56      
22 B1 780 780 46.17      
23 B2 3314 3314 19.85      
24 B2 3238 3238 16.33      
25 B2 1379 1379 39.85      
26 B2 1238 1238 6.65      
27 B2 1043 1043 2.51      
28 B2 981 981 7.20      
29 B2 892 892 10.34      
30 B2 521 521 6.10      

Unscaled Zero Point Vibrational Energy (zpe) 22508.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22508.4 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 CISD/Def2TZVPP
ABC
0.26673 0.15137 0.11837

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.778 0.522
C2 0.000 -0.778 0.522
H3 0.000 1.338 1.444
H4 0.000 -1.338 1.444
C5 -1.293 0.663 -0.264
C6 1.293 0.663 -0.264
C7 1.293 -0.663 -0.264
C8 -1.293 -0.663 -0.264
H9 -1.934 1.401 -0.703
H10 1.934 1.401 -0.703
H11 1.934 -1.401 -0.703
H12 -1.934 -1.401 -0.703

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.55591.07862.30811.51721.51722.08902.08902.37292.37293.16103.1610
C21.55592.30811.07862.08902.08901.51721.51723.16103.16102.37292.3729
H31.07862.30812.67612.24562.24562.93082.93082.89042.89043.98193.9819
H42.30811.07862.67612.93082.93082.24562.24563.98193.98192.89042.8904
C51.51722.08902.24562.93082.58542.90531.32521.07263.33943.85562.2056
C61.51722.08902.24562.93082.58541.32522.90533.33941.07262.20563.8556
C72.08901.51722.93082.24562.90531.32522.58543.85562.20561.07263.3394
C82.08901.51722.93082.24561.32522.90532.58542.20563.85563.33941.0726
H92.37293.16102.89043.98191.07263.33943.85562.20563.86834.77702.8028
H102.37293.16102.89043.98193.33941.07262.20563.85563.86832.80284.7770
H113.16102.37293.98192.89043.85562.20561.07263.33944.77702.80283.8683
H123.16102.37293.98192.89042.20563.85563.33941.07262.80284.77703.8683

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 121.283 C1 C2 H7 85.639
C1 C2 H8 85.639 C1 C5 H8 94.361
C1 C5 H9 132.023 C1 C6 H7 94.361
C1 C6 H10 132.023 C2 C1 C3 121.283
C2 C1 C5 85.639 C2 C1 C6 85.639
C2 H7 C6 94.361 C2 H7 H11 132.023
C2 H8 C5 94.361 C2 H8 H12 132.023
C3 C1 C5 118.822 C3 C1 C6 118.822
C4 C2 H7 118.822 C4 C2 H8 118.822
C5 C1 C6 116.871 C5 H8 H12 133.533
C6 H7 H11 133.533 H7 C6 H10 133.533
H8 C5 H9 133.533
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability