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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-231.764800
Energy at 298.15K-231.773851
Nuclear repulsion energy217.830332
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/LANL2DZ
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 3380 3042 0.00      
2 Ag 3182 2863 0.00      
3 Ag 1889 1700 0.00      
4 Ag 1639 1475 0.00      
5 Ag 1343 1209 0.00      
6 Ag 906 815 0.00      
7 Ag 587 528 0.00      
8 Au 1337 1203 0.00      
9 Au 1133 1020 0.00      
10 Au 424 382 0.00      
11 B1g 3345 3010 0.00      
12 B1g 1540 1386 0.00      
13 B1g 1512 1361 0.00      
14 B1g 1149 1034 0.00      
15 B1g 627 564 0.00      
16 B1u 3209 2888 101.44      
17 B1u 1113 1002 44.59      
18 B1u 723 650 110.38      
19 B1u 136 122 1.28      
20 B2g 3208 2887 0.00      
21 B2g 1166 1049 0.00      
22 B2g 1072 965 0.00      
23 B2g 447 402 0.00      
24 B2u 3374 3036 135.34      
25 B2u 1847 1662 5.22      
26 B2u 1526 1373 2.91      
27 B2u 1300 1170 0.13      
28 B2u 1017 915 3.86      
29 B3g 1337 1203 0.00      
30 B3g 811 730 0.00      
31 B3u 3345 3010 28.69      
32 B3u 3182 2863 143.39      
33 B3u 1641 1477 11.64      
34 B3u 1570 1413 2.61      
35 B3u 1060 954 1.79      
36 B3u 954 858 12.82      

Unscaled Zero Point Vibrational Energy (zpe) 29013.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 26109.0 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 HF/LANL2DZ
ABC
0.17145 0.16296 0.08613

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.506 0.000 0.000
C2 -1.506 0.000 0.000
C3 -0.667 1.258 0.000
C4 0.667 1.258 0.000
C5 -0.667 -1.258 0.000
C6 0.667 -1.258 0.000
H7 1.199 -2.193 0.000
H8 -1.199 -2.193 0.000
H9 1.199 2.193 0.000
H10 -1.199 2.193 0.000
H11 2.164 0.000 0.866
H12 -2.164 0.000 0.866
H13 2.164 0.000 -0.866
H14 -2.164 0.000 -0.866

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.01152.51021.51182.51021.51182.21393.48152.21393.48151.08803.77051.08803.7705
C23.01151.51182.51021.51182.51023.48152.21393.48152.21393.77051.08803.77051.0880
C32.51021.51181.33352.51532.84693.92213.49092.08651.07563.21632.13863.21632.1386
C41.51182.51021.33352.84692.51533.49093.92211.07562.08652.13863.21632.13863.2163
C52.51021.51182.51532.84691.33352.08651.07563.92213.49093.21632.13863.21632.1386
C61.51182.51022.84692.51531.33351.07562.08653.49093.92212.13863.21632.13863.2163
H72.21393.48153.92213.49092.08651.07562.39724.38504.99752.54754.10652.54754.1065
H83.48152.21393.49093.92211.07562.08652.39724.99754.38504.10652.54754.10652.5475
H92.21393.48152.08651.07563.92213.49094.38504.99752.39722.54754.10652.54754.1065
H103.48152.21391.07562.08653.49093.92214.99754.38502.39724.10652.54754.10652.5475
H111.08803.77053.21632.13863.21632.13862.54754.10652.54754.10654.32761.73304.6617
H123.77051.08802.13863.21632.13863.21634.10652.54754.10652.54754.32764.66171.7330
H131.08803.77053.21632.13863.21632.13862.54754.10652.54754.10651.73304.66174.3276
H143.77051.08802.13863.21632.13863.21634.10652.54754.10652.54754.66171.73304.3276

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 123.709 C1 C4 H9 116.655
C1 C6 C5 123.709 C1 C6 H7 116.655
C2 C3 C4 123.709 C2 C3 H10 116.655
C2 C5 C6 123.709 C2 C5 H8 116.655
C3 C2 C5 112.583 C3 C2 H12 109.612
C3 C2 H14 109.612 C3 C4 H9 119.636
C4 C1 C6 112.583 C4 C1 H11 109.612
C4 C1 H13 109.612 C4 C3 H10 119.636
C5 C2 H12 109.612 C5 C2 H14 109.612
C5 C6 H7 119.636 C6 C1 H11 109.612
C6 C1 H13 109.612 C6 C5 H8 119.636
H11 C1 H13 105.572 H12 C2 H14 105.572
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.357      
2 C -0.357      
3 C -0.194      
4 C -0.194      
5 C -0.194      
6 C -0.194      
7 H 0.195      
8 H 0.195      
9 H 0.195      
10 H 0.195      
11 H 0.178      
12 H 0.178      
13 H 0.178      
14 H 0.178      


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 -36.220 0.000 0.000
y 0.000 -33.527 0.000
z 0.000 0.000 -40.666
Traceless
 xyz
x 0.877 0.000 0.000
y 0.000 4.916 0.000
z 0.000 0.000 -5.793
Polar
3z2-r2-11.587
x2-y2-2.693
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.642 0.000 0.000
y 0.000 11.796 0.000
z 0.000 0.000 4.970


<r2> (average value of r2) Å2
<r2> 145.526
(<r2>)1/2 12.063