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

using model chemistry: CCD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-231.616895
Energy at 298.15K 
HF Energy-230.637698
Nuclear repulsion energy209.104893
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/6-311+G(3df,2p)
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 3247 3063 6.69      
2 A1 3148 2969 25.96      
3 A1 1641 1548 0.15      
4 A1 1207 1138 3.98      
5 A1 1063 1002 1.30      
6 A1 973 918 7.69      
7 A1 887 836 0.05      
8 A1 829 782 74.60      
9 A1 395 373 4.84      
10 A2 3214 3031 0.00      
11 A2 1329 1254 0.00      
12 A2 1232 1162 0.00      
13 A2 983 927 0.00      
14 A2 952 898 0.00      
15 A2 793 748 0.00      
16 A2 333 314 0.00      
17 B1 3245 3061 30.94      
18 B1 1616 1524 10.95      
19 B1 1249 1178 3.81      
20 B1 1124 1060 0.15      
21 B1 1029 970 0.37      
22 B1 735 693 44.28      
23 B2 3215 3032 21.30      
24 B2 3141 2962 14.55      
25 B2 1329 1253 34.49      
26 B2 1189 1122 6.06      
27 B2 979 923 2.20      
28 B2 940 887 6.90      
29 B2 859 810 8.71      
30 B2 500 472 4.73      

Unscaled Zero Point Vibrational Energy (zpe) 21687.2 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 20453.2 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/6-311+G(3df,2p)
ABC
0.26144 0.14999 0.11711

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.785 0.528
C2 0.000 -0.785 0.528
H3 0.000 1.350 1.458
H4 0.000 -1.350 1.458
C5 -1.297 0.669 -0.267
C6 1.297 0.669 -0.267
C7 1.297 -0.669 -0.267
C8 -1.297 -0.669 -0.267
H9 -1.939 1.415 -0.715
H10 1.939 1.415 -0.715
H11 1.939 -1.415 -0.715
H12 -1.939 -1.415 -0.715

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.56991.08782.32881.52591.52592.10462.10462.38802.38803.18523.1852
C21.56992.32881.08782.10462.10461.52591.52593.18523.18522.38802.3880
H31.08782.32882.70062.26292.26292.95542.95542.91292.91294.01604.0160
H42.32881.08782.70062.95542.95542.26292.26294.01604.01602.91292.9129
C51.52592.10462.26292.95542.59452.91931.33811.08133.35113.87512.2262
C61.52592.10462.26292.95542.59451.33812.91933.35111.08132.22623.8751
C72.10461.52592.95542.26292.91931.33812.59453.87512.22621.08133.3511
C82.10461.52592.95542.26291.33812.91932.59452.22623.87513.35111.0813
H92.38803.18522.91294.01601.08133.35113.87512.22623.87754.80052.8301
H102.38803.18522.91294.01603.35111.08132.22623.87513.87752.83014.8005
H113.18522.38804.01602.91293.87512.22621.08133.35114.80052.83013.8775
H123.18522.38804.01602.91292.22623.87513.35111.08132.83014.80053.8775

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 121.311 C1 C2 H7 85.643
C1 C2 H8 85.643 C1 C5 H8 94.357
C1 C5 H9 131.921 C1 C6 H7 94.357
C1 C6 H10 131.921 C2 C1 C3 121.311
C2 C1 C5 85.643 C2 C1 C6 85.643
C2 H7 C6 94.357 C2 H7 H11 131.921
C2 H8 C5 94.357 C2 H8 H12 131.921
C3 C1 C5 118.988 C3 C1 C6 118.988
C4 C2 H7 118.988 C4 C2 H8 118.988
C5 C1 C6 116.456 C5 H8 H12 133.621
C6 H7 H11 133.621 H7 C6 H10 133.621
H8 C5 H9 133.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability