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

using model chemistry: HF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-231.853354
Energy at 298.15K-231.862391
Nuclear repulsion energy218.545234
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/cc-pVDZ
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 3333 3026 0.00      
2 Ag 3151 2861 0.00      
3 Ag 1912 1736 0.00      
4 Ag 1579 1434 0.00      
5 Ag 1309 1188 0.00      
6 Ag 909 826 0.00      
7 Ag 578 525 0.00      
8 Au 1315 1194 0.00      
9 Au 1110 1007 0.00      
10 Au 418 379 0.00      
11 B1g 3303 3000 0.00      
12 B1g 1535 1394 0.00      
13 B1g 1463 1328 0.00      
14 B1g 1108 1007 0.00      
15 B1g 614 558 0.00      
16 B1u 3171 2879 76.09      
17 B1u 1086 986 34.00      
18 B1u 692 628 60.07      
19 B1u 149 136 0.79      
20 B2g 3171 2879 0.00      
21 B2g 1133 1029 0.00      
22 B2g 1047 950 0.00      
23 B2g 441 401 0.00      
24 B2u 3330 3024 83.71      
25 B2u 1865 1693 5.09      
26 B2u 1505 1366 0.05      
27 B2u 1261 1145 0.08      
28 B2u 1011 918 0.52      
29 B3g 1318 1197 0.00      
30 B3g 797 724 0.00      
31 B3u 3304 3000 25.09      
32 B3u 3151 2861 119.26      
33 B3u 1581 1436 2.39      
34 B3u 1542 1400 1.25      
35 B3u 1048 951 1.48      
36 B3u 949 861 10.29      

Unscaled Zero Point Vibrational Energy (zpe) 28593.0 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 25962.5 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/cc-pVDZ
ABC
0.17242 0.16480 0.08692

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

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 -0.661 1.252 0.000
C4 0.661 1.252 0.000
C5 -0.661 -1.252 0.000
C6 0.661 -1.252 0.000
H7 1.196 -2.196 0.000
H8 -1.196 -2.196 0.000
H9 1.196 2.196 0.000
H10 -1.196 2.196 0.000
H11 2.161 0.000 0.871
H12 -2.161 0.000 0.871
H13 2.161 0.000 -0.871
H14 -2.161 0.000 -0.871

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.99012.49361.50442.49361.50442.21633.47362.21633.47361.09633.75841.09633.7584
C22.99011.50442.49361.50442.49363.47362.21633.47362.21633.75841.09633.75841.0963
C32.49361.50441.32262.50462.83233.91683.48952.08361.08483.20822.13913.20822.1391
C41.50442.49361.32262.83232.50463.48953.91681.08482.08362.13913.20822.13913.2082
C52.49361.50442.50462.83231.32262.08361.08483.91683.48953.20822.13913.20822.1391
C61.50442.49362.83232.50461.32261.08482.08363.48953.91682.13913.20822.13913.2082
H72.21633.47363.91683.48952.08361.08482.39254.39205.00142.55184.10522.55184.1052
H83.47362.21633.48953.91681.08482.08362.39255.00144.39204.10522.55184.10522.5518
H92.21633.47362.08361.08483.91683.48954.39205.00142.39252.55184.10522.55184.1052
H103.47362.21631.08482.08363.48953.91685.00144.39202.39254.10522.55184.10522.5518
H111.09633.75843.20822.13913.20822.13912.55184.10522.55184.10524.32221.74144.6598
H123.75841.09632.13913.20822.13913.20824.10522.55184.10522.55184.32224.65981.7414
H131.09633.75843.20822.13913.20822.13912.55184.10522.55184.10521.74144.65984.3222
H143.75841.09632.13913.20822.13913.20824.10522.55184.10522.55184.65981.74144.3222

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 123.655 C1 C4 H9 116.798
C1 C6 C5 123.655 C1 C6 H7 116.798
C2 C3 C4 123.655 C2 C3 H10 116.798
C2 C5 C6 123.655 C2 C5 H8 116.798
C3 C2 C5 112.690 C3 C2 H12 109.676
C3 C2 H14 109.676 C3 C4 H9 119.547
C4 C1 C6 112.690 C4 C1 H11 109.676
C4 C1 H13 109.676 C4 C3 H10 119.547
C5 C2 H12 109.676 C5 C2 H14 109.676
C5 C6 H7 119.547 C6 C1 H11 109.676
C6 C1 H13 109.676 C6 C5 H8 119.547
H11 C1 H13 105.172 H12 C2 H14 105.172
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.074 0.511    
2 C 0.074 0.511    
3 C -0.100 -0.279    
4 C -0.100 -0.279    
5 C -0.100 -0.279    
6 C -0.100 -0.279    
7 H 0.016 0.110    
8 H 0.016 0.110    
9 H 0.016 0.110    
10 H 0.016 0.110    
11 H 0.047 -0.087    
12 H 0.047 -0.087    
13 H 0.047 -0.087    
14 H 0.047 -0.087    


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 -33.854 0.000 0.000
y 0.000 -36.021 0.000
z 0.000 0.000 -39.725
Traceless
 xyz
x 4.019 0.000 0.000
y 0.000 0.769 0.000
z 0.000 0.000 -4.788
Polar
3z2-r2-9.575
x2-y22.167
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.104 0.000 0.000
y 0.000 8.464 0.000
z 0.000 0.000 5.268


<r2> (average value of r2) Å2
<r2> 144.501
(<r2>)1/2 12.021