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

using model chemistry: HF/6-31G**

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/6-31G**
 hartrees
Energy at 0K-231.846988
Energy at 298.15K-231.855993
Nuclear repulsion energy218.924279
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 3342 3017 0.00      
2 Ag 3155 2847 0.00      
3 Ag 1920 1733 0.00      
4 Ag 1608 1452 0.00      
5 Ag 1324 1195 0.00      
6 Ag 908 819 0.00      
7 Ag 578 521 0.00      
8 Au 1327 1198 0.00      
9 Au 1117 1008 0.00      
10 Au 418 377 0.00      
11 B1g 3314 2991 0.00      
12 B1g 1543 1393 0.00      
13 B1g 1484 1340 0.00      
14 B1g 1113 1004 0.00      
15 B1g 617 557 0.00      
16 B1u 3170 2861 84.51      
17 B1u 1094 988 35.06      
18 B1u 695 627 56.88      
19 B1u 140 126 0.59      
20 B2g 3170 2862 0.00      
21 B2g 1141 1030 0.00      
22 B2g 1055 952 0.00      
23 B2g 438 395 0.00      
24 B2u 3339 3014 97.31      
25 B2u 1872 1689 4.34      
26 B2u 1517 1369 0.07      
27 B2u 1275 1151 0.23      
28 B2u 1009 911 0.34      
29 B3g 1329 1200 0.00      
30 B3g 797 719 0.00      
31 B3u 3315 2992 25.48      
32 B3u 3155 2848 120.31      
33 B3u 1610 1453 0.74      
34 B3u 1561 1409 0.50      
35 B3u 1053 950 1.76      
36 B3u 949 857 7.77      

Unscaled Zero Point Vibrational Energy (zpe) 28724.6 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 25926.8 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/6-31G**
ABC
0.17279 0.16528 0.08711

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.000 0.000
C2 -1.495 0.000 0.000
C3 -0.659 1.252 0.000
C4 0.659 1.252 0.000
C5 -0.659 -1.252 0.000
C6 0.659 -1.252 0.000
H7 1.192 -2.188 0.000
H8 -1.192 -2.188 0.000
H9 1.192 2.188 0.000
H10 -1.192 2.188 0.000
H11 2.157 0.000 0.866
H12 -2.157 0.000 0.866
H13 2.157 0.000 -0.866
H14 -2.157 0.000 -0.866

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98922.49141.50502.49141.50502.20923.46552.20923.46551.09013.75291.09013.7529
C22.98921.50502.49141.50502.49143.46552.20923.46552.20923.75291.09013.75291.0901
C32.49141.50501.31882.50392.83003.90723.48152.07521.07763.20142.13533.20142.1353
C41.50502.49141.31882.83002.50393.48153.90721.07762.07522.13533.20142.13533.2014
C52.49141.50502.50392.83001.31882.07521.07763.90723.48153.20142.13533.20142.1353
C61.50502.49142.83002.50391.31881.07762.07523.48153.90722.13533.20142.13533.2014
H72.20923.46553.90723.48152.07521.07762.38504.37704.98462.54354.09372.54354.0937
H83.46552.20923.48153.90721.07762.07522.38504.98464.37704.09372.54354.09372.5435
H92.20923.46552.07521.07763.90723.48154.37704.98462.38502.54354.09372.54354.0937
H103.46552.20921.07762.07523.48153.90724.98464.37702.38504.09372.54354.09372.5435
H111.09013.75293.20142.13533.20142.13532.54354.09372.54354.09374.31411.73134.6485
H123.75291.09012.13533.20142.13533.20144.09372.54354.09372.54354.31414.64851.7313
H131.09013.75293.20142.13533.20142.13532.54354.09372.54354.09371.73134.64854.3141
H143.75291.09012.13533.20142.13533.20144.09372.54354.09372.54354.64851.73134.3141

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 123.708 C1 C4 H9 116.644
C1 C6 C5 123.708 C1 C6 H7 116.644
C2 C3 C4 123.708 C2 C3 H10 116.644
C2 C5 C6 123.708 C2 C5 H8 116.644
C3 C2 C5 112.585 C3 C2 H12 109.710
C3 C2 H14 109.710 C3 C4 H9 119.648
C4 C1 C6 112.585 C4 C1 H11 109.710
C4 C1 H13 109.710 C4 C3 H10 119.648
C5 C2 H12 109.710 C5 C2 H14 109.710
C5 C6 H7 119.648 C6 C1 H11 109.710
C6 C1 H13 109.710 C6 C5 H8 119.648
H11 C1 H13 105.150 H12 C2 H14 105.150
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245 0.489    
2 C -0.245 0.489    
3 C -0.133 -0.276    
4 C -0.133 -0.276    
5 C -0.133 -0.276    
6 C -0.133 -0.276    
7 H 0.128 0.114    
8 H 0.128 0.114    
9 H 0.128 0.114    
10 H 0.128 0.114    
11 H 0.128 -0.083    
12 H 0.128 -0.083    
13 H 0.128 -0.083    
14 H 0.128 -0.083    


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 -35.480 0.000 0.000
y 0.000 -33.702 0.000
z 0.000 0.000 -39.368
Traceless
 xyz
x 1.055 0.000 0.000
y 0.000 3.722 0.000
z 0.000 0.000 -4.777
Polar
3z2-r2-9.553
x2-y2-1.778
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.063 0.000 0.000
y 0.000 11.746 0.000
z 0.000 0.000 4.952


<r2> (average value of r2) Å2
<r2> 143.887
(<r2>)1/2 11.995