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

using model chemistry: HF/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-231.861300
Energy at 298.15K-231.870327
Nuclear repulsion energy218.466518
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/aug-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 A1 3326 3029 0.00      
2 A1 3159 2876 55.10      
3 A1 3142 2861 0.00      
4 A1 1893 1724 0.00      
5 A1 1583 1442 0.00      
6 A1 1307 1190 0.00      
7 A1 1081 985 45.73      
8 A1 906 825 0.00      
9 A1 686 624 71.37      
10 A1 578 526 0.00      
11 A1 146 133 1.05      
12 A2 3299 3004 0.00      
13 A2 1532 1395 0.00      
14 A2 1465 1334 0.00      
15 A2 1315 1198 0.00      
16 A2 1105 1006 0.00      
17 A2 1098 1000 0.00      
18 A2 613 558 0.00      
19 A2 418 380 0.00      
20 B1 3324 3027 78.19      
21 B1 1844 1679 9.61      
22 B1 1502 1368 0.13      
23 B1 1316 1199 0.00      
24 B1 1257 1145 0.44      
25 B1 1006 916 0.60      
26 B1 789 718 0.00      
27 B2 3299 3004 25.64      
28 B2 3160 2877 0.00      
29 B2 3143 2862 117.70      
30 B2 1585 1443 3.28      
31 B2 1543 1405 1.61      
32 B2 1123 1023 0.00      
33 B2 1046 953 1.98      
34 B2 1037 944 0.00      
35 B2 947 862 9.12      
36 B2 439 400 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 28504.9 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 25956.5 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/aug-cc-pVDZ
ABC
0.17227 0.16460 0.08682

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.496 0.000
C2 0.000 -1.496 0.000
C3 1.253 -0.662 -0.000
C4 1.253 0.662 -0.000
C5 -1.253 -0.662 -0.000
C6 -1.253 0.662 -0.000
H7 -2.196 1.195 -0.000
H8 -2.196 -1.195 -0.000
H9 2.196 1.195 -0.000
H10 2.196 -1.195 -0.000
H11 0.000 2.160 -0.870
H12 0.000 -2.160 -0.870
H13 0.000 2.160 0.871
H14 0.000 -2.160 0.871

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.99302.49591.50542.49591.50542.21643.47382.21643.47381.09463.75881.09463.7587
C22.99301.50542.49591.50542.49593.47382.21643.47382.21643.75881.09463.75871.0946
C32.49591.50541.32422.50612.83443.91733.48992.08301.08313.20822.13813.20822.1381
C41.50542.49591.32422.83442.50613.48993.91731.08312.08302.13813.20822.13813.2082
C52.49591.50542.50612.83441.32422.08301.08313.91733.48993.20822.13813.20822.1381
C61.50542.49592.83442.50611.32421.08312.08303.48993.91732.13813.20822.13813.2082
H72.21643.47383.91733.48992.08301.08312.39054.39185.00022.55154.10342.55164.1034
H83.47382.21643.48993.91731.08312.08302.39055.00024.39184.10342.55154.10342.5516
H92.21643.47382.08301.08313.91733.48994.39185.00022.39052.55154.10342.55164.1034
H103.47382.21641.08312.08303.48993.91735.00024.39182.39054.10342.55154.10342.5516
H111.09463.75883.20822.13813.20822.13812.55154.10342.55154.10344.32021.74094.6577
H123.75881.09462.13813.20822.13813.20824.10342.55154.10342.55154.32024.65771.7409
H131.09463.75873.20822.13813.20822.13812.55164.10342.55164.10341.74094.65774.3200
H143.75871.09462.13813.20822.13813.20824.10342.55164.10342.55164.65771.74094.3200

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 123.658 C1 C4 H9 116.855
C1 C6 C5 123.658 C1 C6 H7 116.855
C2 C3 C4 123.658 C2 C3 H10 116.855
C2 C5 C6 123.658 C2 C5 H8 116.855
C3 C2 C5 112.683 C3 C2 H12 109.634
C3 C2 H14 109.634 C3 C4 H9 119.487
C4 C1 C6 112.683 C4 C1 H11 109.634
C4 C1 H13 109.634 C4 C3 H10 119.487
C5 C2 H12 109.634 C5 C2 H14 109.634
C5 C6 H7 119.487 C6 C1 H11 109.634
C6 C1 H13 109.634 C6 C5 H8 119.487
H11 C1 H13 105.361 H12 C2 H14 105.361
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.069      
2 C -0.069      
3 C 0.380      
4 C 0.380      
5 C 0.380      
6 C 0.380      
7 H -0.428      
8 H -0.428      
9 H -0.428      
10 H -0.428      
11 H 0.083      
12 H 0.083      
13 H 0.082      
14 H 0.082      


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 -36.365 0.000 0.000
y 0.000 -33.856 0.000
z 0.000 0.000 -40.253
Traceless
 xyz
x 0.689 0.000 0.000
y 0.000 4.453 0.000
z 0.000 0.000 -5.142
Polar
3z2-r2-10.284
x2-y2-2.509
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 144.774
(<r2>)1/2 12.032