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

using model chemistry: CCD/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-231.535739
Energy at 298.15K 
HF Energy-230.589748
Nuclear repulsion energy208.822861
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(2df,p)
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 3278 3104 5.48      
2 A1 3175 3007 25.28      
3 A1 1651 1564 0.09      
4 A1 1214 1150 3.87      
5 A1 1068 1011 1.60      
6 A1 977 926 7.08      
7 A1 895 848 0.02      
8 A1 838 793 59.70      
9 A1 396 375 3.14      
10 A2 3243 3072 0.00      
11 A2 1328 1258 0.00      
12 A2 1228 1163 0.00      
13 A2 986 934 0.00      
14 A2 949 899 0.00      
15 A2 800 758 0.00      
16 A2 332 315 0.00      
17 B1 3275 3102 29.15      
18 B1 1626 1540 6.11      
19 B1 1255 1189 4.00      
20 B1 1127 1067 0.01      
21 B1 1035 980 0.35      
22 B1 747 708 35.94      
23 B2 3245 3073 16.75      
24 B2 3168 3001 13.26      
25 B2 1324 1254 33.04      
26 B2 1189 1126 2.93      
27 B2 977 925 4.19      
28 B2 945 895 5.24      
29 B2 862 817 7.11      
30 B2 504 477 5.71      

Unscaled Zero Point Vibrational Energy (zpe) 21816.9 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 20664.9 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(2df,p)
ABC
0.26104 0.14945 0.11667

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

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 1.353 1.458
H4 0.000 -1.353 1.458
C5 -1.300 0.670 -0.267
C6 1.300 0.670 -0.267
C7 1.300 -0.670 -0.267
C8 -1.300 -0.670 -0.267
H9 -1.941 1.418 -0.714
H10 1.941 1.418 -0.714
H11 1.941 -1.418 -0.714
H12 -1.941 -1.418 -0.714

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.57101.08872.33141.52851.52852.10732.10732.38942.38943.18833.1883
C21.57102.33141.08872.10732.10731.52851.52853.18833.18832.38942.3894
H31.08872.33142.70532.26502.26502.95872.95872.91292.91294.01984.0198
H42.33141.08872.70532.95872.95872.26502.26504.01984.01982.91292.9129
C51.52852.10732.26502.95872.60092.92551.33951.08173.35643.88142.2293
C61.52852.10732.26502.95872.60091.33952.92553.35641.08172.22933.8814
C72.10731.52852.95872.26502.92551.33952.60093.88142.22931.08173.3564
C82.10731.52852.95872.26501.33952.92552.60092.22933.88143.35641.0817
H92.38943.18832.91294.01981.08173.35643.88142.22933.88154.80752.8365
H102.38943.18832.91294.01983.35641.08172.22933.88143.88152.83654.8075
H113.18832.38944.01982.91293.88142.22931.08173.35644.80752.83653.8815
H123.18832.38944.01982.91292.22933.88143.35641.08172.83654.80753.8815

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 121.396 C1 C2 H7 85.657
C1 C2 H8 85.657 C1 C5 H8 94.343
C1 C5 H9 131.772 C1 C6 H7 94.343
C1 C6 H10 131.772 C2 C1 C3 121.396
C2 C1 C5 85.657 C2 C1 C6 85.657
C2 H7 C6 94.343 C2 H7 H11 131.772
C2 H8 C5 94.343 C2 H8 H12 131.772
C3 C1 C5 118.901 C3 C1 C6 118.901
C4 C2 H7 118.901 C4 C2 H8 118.901
C5 C1 C6 116.600 C5 H8 H12 133.783
C6 H7 H11 133.783 H7 C6 H10 133.783
H8 C5 H9 133.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability