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

using model chemistry: CCSD/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-231.454525
Energy at 298.15K 
HF Energy-230.589006
Nuclear repulsion energy206.811676
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/aug-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 3235 3117 8.10      
2 A1 3134 3019 32.45      
3 A1 1614 1555 0.09      
4 A1 1183 1139 3.26      
5 A1 1043 1005 1.13      
6 A1 956 921 7.18      
7 A1 862 831 0.15      
8 A1 808 778 76.20      
9 A1 383 369 4.99      
10 A2 3202 3085 0.00      
11 A2 1303 1256 0.00      
12 A2 1206 1162 0.00      
13 A2 961 926 0.00      
14 A2 892 859 0.00      
15 A2 783 754 0.00      
16 A2 322 310 0.00      
17 B1 3233 3114 36.33      
18 B1 1590 1531 12.24      
19 B1 1230 1185 4.90      
20 B1 1109 1068 0.04      
21 B1 1013 976 0.55      
22 B1 714 687 43.97      
23 B2 3203 3086 26.36      
24 B2 3125 3011 17.47      
25 B2 1300 1252 33.07      
26 B2 1157 1114 5.70      
27 B2 936 902 6.54      
28 B2 908 875 1.35      
29 B2 834 803 9.12      
30 B2 489 471 4.69      

Unscaled Zero Point Vibrational Energy (zpe) 21362.6 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 20580.7 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/aug-cc-pVDZ
ABC
0.25521 0.14709 0.11461

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.794 0.534
C2 0.000 -0.794 0.534
H3 0.000 1.366 1.472
H4 0.000 -1.366 1.472
C5 -1.310 0.679 -0.269
C6 1.310 0.679 -0.269
C7 1.310 -0.679 -0.269
C8 -1.310 -0.679 -0.269
H9 -1.960 1.432 -0.723
H10 1.960 1.432 -0.723
H11 1.960 -1.432 -0.723
H12 -1.960 -1.432 -0.723

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.58751.09972.35531.54041.54042.12792.12792.41452.41453.22123.2212
C21.58752.35531.09972.12792.12791.54041.54043.22123.22122.41452.4145
H31.09972.35532.73282.28492.28492.98842.98842.94412.94414.06134.0613
H42.35531.09972.73282.98842.98842.28492.28494.06134.06132.94412.9441
C51.54042.12792.28492.98842.61932.95031.35761.09403.38623.91852.2550
C61.54042.12792.28492.98842.61931.35762.95033.38621.09402.25503.9185
C72.12791.54042.98842.28492.95031.35762.61933.91852.25501.09403.3862
C82.12791.54042.98842.28491.35762.95032.61932.25503.91853.38621.0940
H92.41453.22122.94414.06131.09403.38623.91852.25503.92084.85532.8639
H102.41453.22122.94414.06133.38621.09402.25503.91853.92082.86394.8553
H113.22122.41454.06132.94413.91852.25501.09403.38624.85532.86393.9208
H123.22122.41454.06132.94412.25503.91853.38621.09402.86394.85533.9208

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 121.382 C1 C2 H7 85.721
C1 C2 H8 85.721 C1 C5 H8 94.279
C1 C5 H9 132.117 C1 C6 H7 94.279
C1 C6 H10 132.117 C2 C1 C3 121.382
C2 C1 C5 85.721 C2 C1 C6 85.721
C2 H7 C6 94.279 C2 H7 H11 132.117
C2 H8 C5 94.279 C2 H8 H12 132.117
C3 C1 C5 118.929 C3 C1 C6 118.929
C4 C2 H7 118.929 C4 C2 H8 118.929
C5 C1 C6 116.473 C5 H8 H12 133.506
C6 H7 H11 133.506 H7 C6 H10 133.506
H8 C5 H9 133.506
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability