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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at CBS-Q
 hartrees
Energy at 0K-231.669623
Energy at 298.15K-231.662006
HF Energy-230.569742
Nuclear repulsion energy177.277206
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3336 3336 0.00      
2 Ag 3303 3303 0.00      
3 Ag 2211 2211 0.00      
4 Ag 1642 1642 0.00      
5 Ag 1523 1523 0.00      
6 Ag 1255 1255 0.00      
7 Ag 1124 1124 0.00      
8 Ag 996 996 0.00      
9 Ag 579 579 0.00      
10 Ag 256 256 0.00      
11 Au 3382 3382 11.76      
12 Au 1111 1111 1.22      
13 Au 1011 1011 34.59      
14 Au 533 533 2.86      
15 Au 390 390 10.85      
16 Au 84 84 0.21      
17 Bg 3382 3382 0.00      
18 Bg 1113 1113 0.00      
19 Bg 994 994 0.00      
20 Bg 736 736 0.00      
21 Bg 362 362 0.00      
22 Bu 3342 3342 10.06      
23 Bu 3303 3303 23.26      
24 Bu 2217 2217 146.15      
25 Bu 1594 1594 1.54      
26 Bu 1375 1375 29.68      
27 Bu 1197 1197 0.64      
28 Bu 997 997 106.06      
29 Bu 598 598 26.87      
30 Bu 133 133 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 22037.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22037.4 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 CBS-Q
ABC
1.05217 0.04499 0.04393

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.327 0.661 0.000
C2 0.327 -0.661 0.000
C3 0.327 1.788 0.000
C4 -0.327 -1.788 0.000
C5 0.980 2.910 0.000
C6 -0.980 -2.910 0.000
H7 -1.406 0.681 0.000
H8 1.406 -0.681 0.000
H9 1.261 3.395 0.922
H10 1.261 3.395 -0.922
H11 -1.261 -3.395 0.922
H12 -1.261 -3.395 -0.922

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47541.30352.44952.60103.63001.07922.19243.29383.29384.26344.2634
C21.47542.44951.30353.63002.60102.19241.07924.26344.26343.29383.2938
C31.30352.44953.63621.29754.87662.05712.69482.07472.07475.49945.4994
C42.44951.30353.63624.87661.29752.69482.05715.49945.49942.07472.0747
C52.60103.63001.29754.87666.14063.26523.61591.07921.07926.75476.7547
C63.63002.60104.87661.29756.14063.61593.26526.75476.75471.07921.0792
H71.07922.19242.05712.69483.26523.61593.12503.91583.91584.18174.1817
H82.19241.07922.69482.05713.61593.26523.12504.18174.18173.91583.9158
H93.29384.26342.07475.49941.07926.75473.91584.18171.84367.24397.4749
H103.29384.26342.07475.49941.07926.75473.91584.18171.84367.47497.2439
H114.26343.29385.49942.07476.75471.07924.18173.91587.24397.47491.8436
H124.26343.29385.49942.07476.75471.07924.18173.91587.47497.24391.8436

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 123.518 C1 C2 H8 117.393
C1 C3 C5 179.943 C2 C1 C3 123.518
C2 C1 H7 117.393 C2 C4 C6 179.943
C3 C1 H7 119.090 C3 C5 H9 121.331
C3 C5 H10 121.331 C4 C2 H8 119.090
C4 C6 H11 121.331 C4 C6 H12 121.331
H9 C5 H10 117.338 H11 C6 H12 117.338
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability