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

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-231.505663
Energy at 298.15K 
HF Energy-230.632362
Nuclear repulsion energy208.638855
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/TZVP
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 3259 3110 7.51      
2 A1 3153 3009 32.46      
3 A1 1633 1558 0.09      
4 A1 1201 1146 3.61      
5 A1 1064 1015 1.50      
6 A1 968 924 11.40      
7 A1 878 838 0.22      
8 A1 828 791 76.05      
9 A1 401 383 4.61      
10 A2 3225 3078 0.00      
11 A2 1320 1260 0.00      
12 A2 1232 1176 0.00      
13 A2 973 928 0.00      
14 A2 890 849 0.00      
15 A2 789 753 0.00      
16 A2 312 298 0.00      
17 B1 3256 3108 35.93      
18 B1 1609 1535 10.29      
19 B1 1250 1193 3.65      
20 B1 1124 1072 0.11      
21 B1 1025 978 0.39      
22 B1 742 708 44.61      
23 B2 3226 3079 24.08      
24 B2 3144 3000 17.09      
25 B2 1324 1264 32.67      
26 B2 1189 1134 6.01      
27 B2 945 902 7.34      
28 B2 919 877 1.80      
29 B2 844 805 7.76      
30 B2 493 470 4.85      

Unscaled Zero Point Vibrational Energy (zpe) 21605.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 20620.7 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/TZVP
ABC
0.26102 0.14909 0.11626

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.787 0.526
C2 0.000 -0.787 0.526
H3 0.000 1.352 1.456
H4 0.000 -1.352 1.456
C5 -1.303 0.671 -0.266
C6 1.303 0.671 -0.266
C7 1.303 -0.671 -0.266
C8 -1.303 -0.671 -0.266
H9 -1.947 1.419 -0.708
H10 1.947 1.419 -0.708
H11 1.947 -1.419 -0.708
H12 -1.947 -1.419 -0.708

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.57441.08872.33281.52901.52902.10932.10932.38962.38963.19053.1905
C21.57442.33281.08872.10932.10931.52901.52903.19053.19052.38962.3896
H31.08872.33282.70362.26472.26472.95882.95882.91162.91164.01904.0190
H42.33281.08872.70362.95882.95882.26472.26474.01904.01902.91162.9116
C51.52902.10932.26472.95882.60562.93051.34111.08183.36373.88862.2310
C61.52902.10932.26472.95882.60561.34112.93053.36371.08182.23103.8886
C72.10931.52902.95882.26472.93051.34112.60563.88862.23101.08183.3637
C82.10931.52902.95882.26471.34112.93052.60562.23103.88863.36371.0818
H92.38963.19052.91164.01901.08183.36373.88862.23103.89324.81832.8388
H102.38963.19052.91164.01903.36371.08182.23103.88863.89322.83884.8183
H113.19052.38964.01902.91163.88862.23101.08183.36374.81832.83883.8932
H123.19052.38964.01902.91162.23103.88863.36371.08182.83884.81833.8932

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 121.240 C1 C2 H7 85.624
C1 C2 H8 85.624 C1 C5 H8 94.376
C1 C5 H9 131.730 C1 C6 H7 94.376
C1 C6 H10 131.730 C2 C1 C3 121.240
C2 C1 C5 85.624 C2 C1 C6 85.624
C2 H7 C6 94.376 C2 H7 H11 131.730
C2 H8 C5 94.376 C2 H8 H12 131.730
C3 C1 C5 118.837 C3 C1 C6 118.837
C4 C2 H7 118.837 C4 C2 H8 118.837
C5 C1 C6 116.876 C5 H8 H12 133.810
C6 H7 H11 133.810 H7 C6 H10 133.810
H8 C5 H9 133.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability