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All results from a given calculation for C6H6 (1,2,4,5-Hexatetraene)

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at G2
 hartrees
Energy at 0K-231.663949
Energy at 298.15K-231.656228
HF Energy-230.573986
Nuclear repulsion energy177.575499
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 HF/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3349 3155 0.00      
2 Ag 3319 3127 0.00      
3 Ag 2210 2083 0.00      
4 Ag 1653 1558 0.00      
5 Ag 1535 1446 0.00      
6 Ag 1261 1188 0.00      
7 Ag 1128 1062 0.00      
8 Ag 1013 954 0.00      
9 Ag 580 547 0.00      
10 Ag 257 242 0.00      
11 Au 3395 3199 12.72      
12 Au 1122 1057 1.07      
13 Au 1018 959 37.25      
14 Au 537 505 2.83      
15 Au 389 367 12.29      
16 Au 83 78 0.20      
17 Bg 3395 3199 0.00      
18 Bg 1124 1059 0.00      
19 Bg 1003 945 0.00      
20 Bg 740 697 0.00      
21 Bg 361 340 0.00      
22 Bu 3355 3161 10.52      
23 Bu 3319 3127 25.29      
24 Bu 2216 2088 147.54      
25 Bu 1606 1514 2.30      
26 Bu 1388 1308 30.86      
27 Bu 1200 1131 0.80      
28 Bu 1013 955 111.93      
29 Bu 599 565 27.63      
30 Bu 134 127 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 22151.4 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 20871.0 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 MP2=FULL/6-31G*
ABC
1.06272 0.04539 0.04432

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.331 0.653 0.000
C2 0.331 -0.653 0.000
C3 0.331 1.794 0.000
C4 -0.331 -1.794 0.000
C5 0.994 2.924 0.000
C6 -0.994 -2.924 0.000
H7 -1.420 0.663 0.000
H8 1.420 -0.663 0.000
H9 1.282 3.416 0.926
H10 1.282 3.416 -0.926
H11 -1.282 -3.416 0.926
H12 -1.282 -3.416 -0.926

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.46411.31902.44712.62973.63851.08942.19023.33023.33024.27974.2797
C21.46412.44711.31903.63852.62972.19021.08944.27974.27973.33023.3302
C31.31902.44713.64861.31074.90112.08482.68732.09562.09565.53175.5317
C42.44711.31903.64864.90111.31072.68732.08485.53175.53172.09562.0956
C52.62973.63851.31074.90116.17773.30843.61221.08701.08706.79966.7996
C63.63852.62974.90111.31076.17773.61223.30846.79966.79961.08701.0870
H71.08942.19022.08482.68733.30843.61223.13433.96723.96724.18434.1843
H82.19021.08942.68732.08483.61223.30843.13434.18434.18433.96723.9672
H93.33024.27972.09565.53171.08706.79963.96724.18431.85207.29657.5279
H103.33024.27972.09565.53171.08706.79963.96724.18431.85207.52797.2965
H114.27973.33025.53172.09566.79961.08704.18433.96727.29657.52791.8520
H124.27973.33025.53172.09566.79961.08704.18433.96727.52797.29651.8520

picture of 1,2,4,5-Hexatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.587 C1 C2 H8 117.371
C1 C3 C5 179.945 C2 C1 C3 123.587
C2 C1 H7 117.371 C2 C4 C6 179.945
C3 C1 H7 119.043 C3 C5 H9 121.303
C3 C5 H10 121.303 C4 C2 H8 119.043
C4 C6 H11 121.303 C4 C6 H12 121.303
H9 C5 H10 117.393 H11 C6 H12 117.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability