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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-231.909043
Energy at 298.15K-231.918085
Nuclear repulsion energy219.381662
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/6-311+G(3df,2p)
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 3308 3006 0.00      
2 Ag 3130 2844 0.00      
3 Ag 1886 1714 0.00      
4 Ag 1599 1452 0.00      
5 Ag 1316 1195 0.00      
6 Ag 900 818 0.00      
7 Ag 579 526 0.00      
8 Au 1326 1205 0.00      
9 Au 1119 1017 0.00      
10 Au 420 382 0.00      
11 B1g 3280 2980 0.00      
12 B1g 1533 1392 0.00      
13 B1g 1480 1345 0.00      
14 B1g 1106 1004 0.00      
15 B1g 615 559 0.00      
16 B1u 3138 2851 51.97      
17 B1u 1090 991 44.75      
18 B1u 695 631 69.84      
19 B1u 147 134 1.12      
20 B2g 3139 2852 0.00      
21 B2g 1143 1039 0.00      
22 B2g 1047 952 0.00      
23 B2g 441 401 0.00      
24 B2u 3306 3004 75.22      
25 B2u 1836 1668 9.35      
26 B2u 1508 1371 0.02      
27 B2u 1268 1152 0.45      
28 B2u 1002 910 0.62      
29 B3g 1326 1205 0.00      
30 B3g 800 727 0.00      
31 B3u 3281 2981 25.92      
32 B3u 3130 2844 107.77      
33 B3u 1600 1453 3.91      
34 B3u 1553 1411 1.48      
35 B3u 1048 952 1.92      
36 B3u 941 855 8.82      

Unscaled Zero Point Vibrational Energy (zpe) 28517.7 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 25911.2 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/6-311+G(3df,2p)
ABC
0.17332 0.16617 0.08749

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.490 0.000 0.000
C2 -1.490 0.000 0.000
C3 -0.658 1.250 0.000
C4 0.658 1.250 0.000
C5 -0.658 -1.250 0.000
C6 0.658 -1.250 0.000
H7 1.189 -2.186 0.000
H8 -1.189 -2.186 0.000
H9 1.189 2.186 0.000
H10 -1.189 2.186 0.000
H11 2.151 0.000 0.865
H12 -2.151 0.000 0.865
H13 2.151 0.000 -0.865
H14 -2.151 0.000 -0.865

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98102.48541.50192.48541.50192.20653.45772.20653.45771.08823.74271.08823.7427
C22.98101.50192.48541.50192.48543.45772.20653.45772.20653.74271.08823.74271.0882
C32.48541.50191.31562.49982.82493.90053.47652.07021.07603.19362.13073.19362.1307
C41.50192.48541.31562.82492.49983.47653.90051.07602.07022.13073.19362.13073.1936
C52.48541.50192.49982.82491.31562.07021.07603.90053.47653.19362.13073.19362.1307
C61.50192.48542.82492.49981.31561.07602.07023.47653.90052.13073.19362.13073.1936
H72.20653.45773.90053.47652.07021.07602.37744.37164.97632.54004.08402.54004.0840
H83.45772.20653.47653.90051.07602.07022.37744.97634.37164.08402.54004.08402.5400
H92.20653.45772.07021.07603.90053.47654.37164.97632.37742.54004.08402.54004.0840
H103.45772.20651.07602.07023.47653.90054.97634.37162.37744.08402.54004.08402.5400
H111.08823.74273.19362.13073.19362.13072.54004.08402.54004.08404.30191.72984.6367
H123.74271.08822.13073.19362.13073.19364.08402.54004.08402.54004.30194.63671.7298
H131.08823.74273.19362.13073.19362.13072.54004.08402.54004.08401.72984.63674.3019
H143.74271.08822.13073.19362.13073.19364.08402.54004.08402.54004.63671.72984.3019

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 123.672 C1 C4 H9 116.762
C1 C6 C5 123.672 C1 C6 H7 116.762
C2 C3 C4 123.672 C2 C3 H10 116.762
C2 C5 C6 123.672 C2 C5 H8 116.762
C3 C2 C5 112.657 C3 C2 H12 109.663
C3 C2 H14 109.663 C3 C4 H9 119.566
C4 C1 C6 112.657 C4 C1 H11 109.663
C4 C1 H13 109.663 C4 C3 H10 119.566
C5 C2 H12 109.663 C5 C2 H14 109.663
C5 C6 H7 119.566 C6 C1 H11 109.663
C6 C1 H13 109.663 C6 C5 H8 119.566
H11 C1 H13 105.266 H12 C2 H14 105.266
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.034      
2 C 0.034      
3 C -0.236      
4 C -0.236      
5 C -0.236      
6 C -0.236      
7 H 0.104      
8 H 0.104      
9 H 0.104      
10 H 0.104      
11 H 0.116      
12 H 0.116      
13 H 0.116      
14 H 0.116      


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 -33.605 0.000 0.000
y 0.000 -36.229 0.000
z 0.000 0.000 -40.092
Traceless
 xyz
x 4.555 0.000 0.000
y 0.000 0.620 0.000
z 0.000 0.000 -5.175
Polar
3z2-r2-10.350
x2-y22.623
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.438 0.000 0.000
y 0.000 9.380 0.000
z 0.000 0.000 7.267


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000