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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-233.349625
Energy at 298.15K-233.358239
Nuclear repulsion energy218.924129
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 B1B95/6-311G**
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 3177 3050 0.00      
2 Ag 3002 2882 0.00      
3 Ag 1774 1704 0.00      
4 Ag 1459 1401 0.00      
5 Ag 1224 1175 0.00      
6 Ag 874 840 0.00      
7 Ag 536 515 0.00      
8 Au 1216 1167 0.00      
9 Au 1005 965 0.00      
10 Au 382 367 0.00      
11 B1g 3152 3026 0.00      
12 B1g 1412 1356 0.00      
13 B1g 1357 1302 0.00      
14 B1g 1051 1009 0.00      
15 B1g 569 546 0.00      
16 B1u 3016 2895 47.90      
17 B1u 981 942 27.97      
18 B1u 629 604 67.88      
19 B1u 108 104 1.04      
20 B2g 3017 2897 0.00      
21 B2g 1021 980 0.00      
22 B2g 960 922 0.00      
23 B2g 403 386 0.00      
24 B2u 3175 3048 78.08      
25 B2u 1727 1658 6.68      
26 B2u 1385 1330 0.48      
27 B2u 1174 1127 0.11      
28 B2u 961 922 0.20      
29 B3g 1218 1169 0.00      
30 B3g 725 696 0.00      
31 B3u 3152 3026 18.34      
32 B3u 3004 2884 88.37      
33 B3u 1463 1404 8.58      
34 B3u 1435 1378 0.29      
35 B3u 967 928 0.54      
36 B3u 905 869 13.56      

Unscaled Zero Point Vibrational Energy (zpe) 26806.2 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 25736.6 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 B1B95/6-311G**
ABC
0.17396 0.16484 0.08731

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.492 0.000 0.000
C2 -1.492 0.000 0.000
C3 -0.664 1.246 0.000
C4 0.664 1.246 0.000
C5 -0.664 -1.246 0.000
C6 0.664 -1.246 0.000
H7 1.198 -2.191 0.000
H8 -1.198 -2.191 0.000
H9 1.198 2.191 0.000
H10 -1.198 2.191 0.000
H11 2.164 0.000 0.869
H12 -2.164 0.000 0.869
H13 2.164 0.000 -0.869
H14 -2.164 0.000 -0.869

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98392.48981.49612.48981.49612.21083.46942.21083.46941.09833.75781.09833.7578
C22.98391.49612.48981.49612.48983.46942.21083.46942.21083.75781.09833.75781.0983
C32.48981.49611.32732.49182.82323.90883.47832.08781.08583.20972.13493.20972.1349
C41.49612.48981.32732.82322.49183.47833.90881.08582.08782.13493.20972.13493.2097
C52.48981.49612.49182.82321.32732.08781.08583.90883.47833.20972.13493.20972.1349
C61.49612.48982.82322.49181.32731.08582.08783.47833.90882.13493.20972.13493.2097
H72.21083.46943.90883.47832.08781.08582.39584.38234.99442.54734.10592.54734.1059
H83.46942.21083.47833.90881.08582.08782.39584.99444.38234.10592.54734.10592.5473
H92.21083.46942.08781.08583.90883.47834.38234.99442.39582.54734.10592.54734.1059
H103.46942.21081.08582.08783.47833.90884.99444.38232.39584.10592.54734.10592.5473
H111.09833.75783.20972.13493.20972.13492.54734.10592.54734.10594.32801.73744.6637
H123.75781.09832.13493.20972.13493.20974.10592.54734.10592.54734.32804.66371.7374
H131.09833.75783.20972.13493.20972.13492.54734.10592.54734.10591.73744.66374.3280
H143.75781.09832.13493.20972.13493.20974.10592.54734.10592.54734.66371.73744.3280

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 123.618 C1 C4 H9 116.907
C1 C6 C5 123.618 C1 C6 H7 116.907
C2 C3 C4 123.618 C2 C3 H10 116.907
C2 C5 C6 123.618 C2 C5 H8 116.907
C3 C2 C5 112.765 C3 C2 H12 109.802
C3 C2 H14 109.802 C3 C4 H9 119.475
C4 C1 C6 112.765 C4 C1 H11 109.802
C4 C1 H13 109.802 C4 C3 H10 119.475
C5 C2 H12 109.802 C5 C2 H14 109.802
C5 C6 H7 119.475 C6 C1 H11 109.802
C6 C1 H13 109.802 C6 C5 H8 119.475
H11 C1 H13 104.547 H12 C2 H14 104.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C -0.199      
3 C -0.145      
4 C -0.145      
5 C -0.145      
6 C -0.145      
7 H 0.106      
8 H 0.106      
9 H 0.106      
10 H 0.106      
11 H 0.139      
12 H 0.139      
13 H 0.139      
14 H 0.139      


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 -33.271 0.000 0.000
y 0.000 -35.421 0.000
z 0.000 0.000 -39.125
Traceless
 xyz
x 4.002 0.000 0.000
y 0.000 0.777 0.000
z 0.000 0.000 -4.779
Polar
3z2-r2-9.558
x2-y22.150
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.368 0.000 0.000
y 0.000 9.089 0.000
z 0.000 0.000 5.760


<r2> (average value of r2) Å2
<r2> 143.676
(<r2>)1/2 11.987