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

using model chemistry: QCISD/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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-231.455800
Energy at 298.15K 
HF Energy-230.588918
Nuclear repulsion energy206.779421
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 QCISD/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 3234 3132 8.23      
2 A1 3132 3034 32.65      
3 A1 1611 1560 0.09      
4 A1 1181 1144 3.24      
5 A1 1042 1010 1.14      
6 A1 955 925 7.09      
7 A1 861 834 0.16      
8 A1 807 781 76.02      
9 A1 383 371 4.97      
10 A2 3200 3100 0.00      
11 A2 1302 1261 0.00      
12 A2 1205 1167 0.00      
13 A2 960 930 0.00      
14 A2 890 862 0.00      
15 A2 782 758 0.00      
16 A2 322 312 0.00      
17 B1 3231 3130 36.95      
18 B1 1586 1537 12.42      
19 B1 1228 1190 4.74      
20 B1 1108 1073 0.04      
21 B1 1012 980 0.53      
22 B1 713 691 44.01      
23 B2 3202 3101 25.86      
24 B2 3124 3026 17.66      
25 B2 1299 1258 33.14      
26 B2 1156 1120 5.74      
27 B2 935 906 6.63      
28 B2 906 878 1.21      
29 B2 833 807 9.20      
30 B2 489 474 4.74      

Unscaled Zero Point Vibrational Energy (zpe) 21343.9 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 20675.8 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 QCISD/aug-cc-pVDZ
ABC
0.25511 0.14706 0.11457

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 1.367 1.473
H4 0.000 -1.367 1.473
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
C11.58781.09982.35561.54051.54052.12822.12822.41462.41463.22173.2217
C21.58782.35561.09982.12822.12821.54051.54053.22173.22172.41462.4146
H31.09982.35562.73302.28502.28502.98882.98882.94432.94434.06184.0618
H42.35561.09982.73302.98882.98882.28502.28504.06184.06182.94432.9443
C51.54052.12822.28502.98882.61972.95081.35811.09413.38653.91912.2556
C61.54052.12822.28502.98882.61971.35812.95083.38651.09412.25563.9191
C72.12821.54052.98882.28502.95081.35812.61973.91912.25561.09413.3865
C82.12821.54052.98882.28501.35812.95082.61972.25563.91913.38651.0941
H92.41463.22172.94434.06181.09413.38653.91912.25563.92094.85592.8648
H102.41463.22172.94434.06183.38651.09412.25563.91913.92092.86484.8559
H113.22172.41464.06182.94433.91912.25561.09413.38654.85592.86483.9209
H123.22172.41464.06182.94432.25563.91913.38651.09412.86484.85593.9209

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 121.377 C1 C2 H7 85.724
C1 C2 H8 85.724 C1 C5 H8 94.276
C1 C5 H9 132.109 C1 C6 H7 94.276
C1 C6 H10 132.109 C2 C1 C3 121.377
C2 C1 C5 85.724 C2 C1 C6 85.724
C2 H7 C6 94.276 C2 H7 H11 132.109
C2 H8 C5 94.276 C2 H8 H12 132.109
C3 C1 C5 118.925 C3 C1 C6 118.925
C4 C2 H7 118.925 C4 C2 H8 118.925
C5 C1 C6 116.483 C5 H8 H12 133.515
C6 H7 H11 133.515 H7 C6 H10 133.515
H8 C5 H9 133.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability