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

using model chemistry: CCSD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/cc-pVDZ
 hartrees
Energy at 0K-231.423163
Energy at 298.15K 
HF Energy-230.581497
Nuclear repulsion energy206.961445
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 CCSD/cc-pVDZ
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 3244 3073 6.49      
2 A1 3144 2978 34.23      
3 A1 1631 1545 0.06      
4 A1 1191 1128 3.68      
5 A1 1044 989 1.09      
6 A1 963 912 6.67      
7 A1 869 823 0.00      
8 A1 814 771 66.71      
9 A1 389 368 3.82      
10 A2 3210 3041 0.00      
11 A2 1317 1248 0.00      
12 A2 1202 1139 0.00      
13 A2 966 915 0.00      
14 A2 915 867 0.00      
15 A2 789 747 0.00      
16 A2 324 307 0.00      
17 B1 3241 3070 36.18      
18 B1 1607 1522 6.45      
19 B1 1239 1174 4.05      
20 B1 1106 1047 0.04      
21 B1 1013 960 0.27      
22 B1 721 683 37.66      
23 B2 3211 3042 22.98      
24 B2 3135 2970 16.85      
25 B2 1307 1238 32.50      
26 B2 1164 1102 4.70      
27 B2 950 899 6.76      
28 B2 925 877 2.06      
29 B2 843 798 8.55      
30 B2 495 469 5.34      

Unscaled Zero Point Vibrational Energy (zpe) 21484.1 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 20351.8 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 CCSD/cc-pVDZ
ABC
0.25611 0.14714 0.11467

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.792 0.531
C2 0.000 -0.792 0.531
H3 0.000 1.364 1.473
H4 0.000 -1.364 1.473
C5 -1.310 0.678 -0.268
C6 1.310 0.678 -0.268
C7 1.310 -0.678 -0.268
C8 -1.310 -0.678 -0.268
H9 -1.962 1.433 -0.723
H10 1.962 1.433 -0.723
H11 1.962 -1.433 -0.723
H12 -1.962 -1.433 -0.723

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.58371.10192.35231.53861.53862.12472.12472.41462.41463.22003.2200
C21.58372.35231.10192.12472.12471.53861.53863.22003.22002.41462.4146
H31.10192.35232.72722.28412.28412.98572.98572.94512.94514.06054.0605
H42.35231.10192.72722.98572.98572.28412.28414.06054.06052.94512.9451
C51.53862.12472.28412.98572.61982.94991.35581.09593.38813.91972.2552
C61.53862.12472.28412.98572.61981.35582.94993.38811.09592.25523.9197
C72.12471.53862.98572.28412.94991.35582.61983.91972.25521.09593.3881
C82.12471.53862.98572.28411.35582.94992.61982.25523.91973.38811.0959
H92.41463.22002.94514.06051.09593.38813.91972.25523.92334.85822.8652
H102.41463.22002.94514.06053.38811.09592.25523.91973.92332.86524.8582
H113.22002.41464.06052.94513.91972.25521.09593.38814.85822.86523.9233
H123.22002.41464.06052.94512.25523.91973.38811.09592.86524.85823.9233

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 121.257 C1 C2 H7 85.752
C1 C2 H8 85.752 C1 C5 H8 94.248
C1 C5 H9 132.124 C1 C6 H7 94.248
C1 C6 H10 132.124 C2 C1 C3 121.257
C2 C1 C5 85.752 C2 C1 C6 85.752
C2 H7 C6 94.248 C2 H7 H11 132.124
C2 H8 C5 94.248 C2 H8 H12 132.124
C3 C1 C5 118.840 C3 C1 C6 118.840
C4 C2 H7 118.840 C4 C2 H8 118.840
C5 C1 C6 116.722 C5 H8 H12 133.523
C6 H7 H11 133.523 H7 C6 H10 133.523
H8 C5 H9 133.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability