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

using model chemistry: CCD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-231.043357
Energy at 298.15K 
HF Energy-230.458198
Nuclear repulsion energy205.265253
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 CCD/6-31G
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 3226 3096 7.33      
2 A1 3132 3005 34.50      
3 A1 1605 1540 0.03      
4 A1 1178 1131 2.34      
5 A1 1072 1028 1.66      
6 A1 948 910 14.75      
7 A1 827 794 4.78      
8 A1 816 783 68.73      
9 A1 397 381 4.12      
10 A2 3187 3058 0.00      
11 A2 1309 1256 0.00      
12 A2 1262 1211 0.00      
13 A2 947 909 0.00      
14 A2 882 846 0.00      
15 A2 789 757 0.00      
16 A2 331 318 0.00      
17 B1 3222 3092 45.75      
18 B1 1583 1519 4.87      
19 B1 1261 1210 0.82      
20 B1 1124 1078 0.10      
21 B1 1012 971 0.55      
22 B1 741 711 48.49      
23 B2 3188 3059 27.98      
24 B2 3122 2995 14.72      
25 B2 1319 1266 25.83      
26 B2 1193 1145 8.89      
27 B2 954 915 7.80      
28 B2 909 872 0.23      
29 B2 831 797 5.60      
30 B2 498 478 4.82      

Unscaled Zero Point Vibrational Energy (zpe) 21432.9 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 20564.9 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 CCD/6-31G
ABC
0.25185 0.14452 0.11242

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.810 0.535
C2 0.000 -0.810 0.535
H3 0.000 1.384 1.469
H4 0.000 -1.384 1.469
C5 -1.324 0.681 -0.269
C6 1.324 0.681 -0.269
C7 1.324 -0.681 -0.269
C8 -1.324 -0.681 -0.269
H9 -1.970 1.432 -0.724
H10 1.970 1.432 -0.724
H11 1.970 -1.432 -0.724
H12 -1.970 -1.432 -0.724

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.61971.09642.38451.55491.55492.15012.15012.41932.41933.23933.2393
C21.61972.38451.09642.15012.15011.55491.55493.23933.23932.41932.4193
H31.09642.38452.76822.29572.29573.00663.00662.94822.94824.07704.0770
H42.38451.09642.76823.00663.00662.29572.29574.07704.07702.94822.9482
C51.55492.15012.29573.00662.64872.97821.36161.09013.40943.94012.2559
C61.55492.15012.29573.00662.64871.36162.97823.40941.09012.25593.9401
C72.15011.55493.00662.29572.97821.36162.64873.94012.25591.09013.4094
C82.15011.55493.00662.29571.36162.97822.64872.25593.94013.40941.0901
H92.41933.23932.94824.07701.09013.40943.94012.25593.93984.87122.8647
H102.41933.23932.94824.07703.40941.09012.25593.94013.93982.86474.8712
H113.23932.41934.07702.94823.94012.25591.09013.40944.87122.86473.9398
H123.23932.41934.07702.94822.25593.94013.40941.09012.86474.87123.9398

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 121.586 C1 C2 H7 85.240
C1 C2 H8 85.240 C1 C5 H8 94.760
C1 C5 H9 131.525 C1 C6 H7 94.760
C1 C6 H10 131.525 C2 C1 C3 121.586
C2 C1 C5 85.240 C2 C1 C6 85.240
C2 H7 C6 94.760 C2 H7 H11 131.525
C2 H8 C5 94.760 C2 H8 H12 131.525
C3 C1 C5 118.957 C3 C1 C6 118.957
C4 C2 H7 118.957 C4 C2 H8 118.957
C5 C1 C6 116.805 C5 H8 H12 133.588
C6 H7 H11 133.588 H7 C6 H10 133.588
H8 C5 H9 133.588
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability