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All results from a given calculation for C6H8 (1,4-Cyclohexadiene)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-231.920855
Energy at 298.15K-231.929898
HF Energy-231.920855
Nuclear repulsion energy219.464981
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/Def2TZVPP
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 3316 3006 0.00      
2 Ag 3135 2842 0.00      
3 Ag 1890 1713 0.00      
4 Ag 1599 1449 0.00      
5 Ag 1318 1194 0.00      
6 Ag 902 817 0.00      
7 Ag 579 525 0.00      
8 Au 1327 1203 0.00      
9 Au 1118 1014 0.00      
10 Au 422 383 0.00      
11 B1g 3289 2981 0.00      
12 B1g 1535 1392 0.00      
13 B1g 1483 1344 0.00      
14 B1g 1107 1003 0.00      
15 B1g 618 560 0.00      
16 B1u 3143 2849 58.75      
17 B1u 1092 990 43.13      
18 B1u 694 629 68.98      
19 B1u 147 133 0.98      
20 B2g 3144 2850 0.00      
21 B2g 1146 1039 0.00      
22 B2g 1052 953 0.00      
23 B2g 447 405 0.00      
24 B2u 3314 3004 79.70      
25 B2u 1841 1668 7.74      
26 B2u 1510 1369 0.01      
27 B2u 1270 1151 0.42      
28 B2u 1003 909 0.53      
29 B3g 1327 1203 0.00      
30 B3g 798 723 0.00      
31 B3u 3289 2981 26.27      
32 B3u 3136 2843 112.40      
33 B3u 1601 1451 3.21      
34 B3u 1557 1411 1.54      
35 B3u 1055 956 1.95      
36 B3u 943 854 8.91      

Unscaled Zero Point Vibrational Energy (zpe) 28572.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 25897.6 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 HF/Def2TZVPP
ABC
0.17354 0.16622 0.08755

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.484 0.000 0.000
C2 -1.484 0.000 0.000
C3 -0.656 1.250 0.000
C4 0.656 1.250 0.000
C5 -0.656 -1.250 0.000
C6 0.656 -1.250 0.000
H7 1.182 -2.187 0.000
H8 -1.182 -2.187 0.000
H9 1.182 2.187 0.000
H10 -1.182 2.187 0.000
H11 2.147 0.000 0.863
H12 -2.147 0.000 0.863
H13 2.147 0.000 -0.863
H14 -2.147 0.000 -0.863

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.96882.47811.49952.47811.49952.20743.44812.20743.44811.08813.73241.08813.7324
C22.96881.49952.47811.49952.47813.44812.20743.44812.20743.73241.08813.73241.0881
C32.47811.49951.31112.49932.82243.89663.47632.06241.07453.18752.12853.18752.1285
C41.49952.47811.31112.82242.49933.47633.89661.07452.06242.12853.18752.12853.1875
C52.47811.49952.49932.82241.31112.06241.07453.89663.47633.18752.12853.18752.1285
C61.49952.47812.82242.49931.31111.07452.06243.47633.89662.12853.18752.12853.1875
H72.20743.44813.89663.47632.06241.07452.36344.37314.97092.54124.07492.54124.0749
H83.44812.20743.47633.89661.07452.06242.36344.97094.37314.07492.54124.07492.5412
H92.20743.44812.06241.07453.89663.47634.37314.97092.36342.54124.07492.54124.0749
H103.44812.20741.07452.06243.47633.89664.97094.37312.36344.07492.54124.07492.5412
H111.08813.73243.18752.12853.18752.12852.54124.07492.54124.07494.29351.72664.6277
H123.73241.08812.12853.18752.12853.18754.07492.54124.07492.54124.29354.62771.7266
H131.08813.73243.18752.12853.18752.12852.54124.07492.54124.07491.72664.62774.2935
H143.73241.08812.12853.18752.12853.18754.07492.54124.07492.54124.62771.72664.2935

picture of 1,4-Cyclohexadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 123.554 C1 C4 H9 117.128
C1 C6 C5 123.554 C1 C6 H7 117.128
C2 C3 C4 123.554 C2 C3 H10 117.128
C2 C5 C6 123.554 C2 C5 H8 117.128
C3 C2 C5 112.893 C3 C2 H12 109.661
C3 C2 H14 109.661 C3 C4 H9 119.319
C4 C1 C6 112.893 C4 C1 H11 109.661
C4 C1 H13 109.661 C4 C3 H10 119.319
C5 C2 H12 109.661 C5 C2 H14 109.661
C5 C6 H7 119.319 C6 C1 H11 109.661
C6 C1 H13 109.661 C6 C5 H8 119.319
H11 C1 H13 105.006 H12 C2 H14 105.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.070      
2 C 0.070      
3 C -0.149      
4 C -0.149      
5 C -0.149      
6 C -0.149      
7 H 0.070      
8 H 0.070      
9 H 0.070      
10 H 0.070      
11 H 0.043      
12 H 0.043      
13 H 0.043      
14 H 0.043      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.749 0.000 0.000
y 0.000 -36.172 0.000
z 0.000 0.000 -39.878
Traceless
 xyz
x 4.276 0.000 0.000
y 0.000 0.641 0.000
z 0.000 0.000 -4.917
Polar
3z2-r2-9.835
x2-y22.424
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.452 0.000 0.000
y 0.000 9.095 0.000
z 0.000 0.000 6.756


<r2> (average value of r2) Å2
<r2> 143.572
(<r2>)1/2 11.982