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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-233.303954
Energy at 298.15K-233.312560
Nuclear repulsion energy218.577225
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 B1B95/6-31G**
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 3196 3051 0.00      
2 Ag 3013 2877 0.00      
3 Ag 1790 1709 0.00      
4 Ag 1470 1404 0.00      
5 Ag 1229 1174 0.00      
6 Ag 878 839 0.00      
7 Ag 536 511 0.00      
8 Au 1213 1158 0.00      
9 Au 1003 958 0.00      
10 Au 380 363 0.00      
11 B1g 3171 3028 0.00      
12 B1g 1420 1355 0.00      
13 B1g 1359 1298 0.00      
14 B1g 1054 1006 0.00      
15 B1g 568 542 0.00      
16 B1u 3032 2895 48.62      
17 B1u 987 943 19.72      
18 B1u 630 602 56.17      
19 B1u 118 112 1.02      
20 B2g 3033 2896 0.00      
21 B2g 1019 973 0.00      
22 B2g 965 921 0.00      
23 B2g 403 385 0.00      
24 B2u 3193 3049 79.60      
25 B2u 1743 1665 6.27      
26 B2u 1394 1331 0.01      
27 B2u 1178 1124 0.03      
28 B2u 964 921 0.03      
29 B3g 1219 1163 0.00      
30 B3g 725 693 0.00      
31 B3u 3171 3028 16.00      
32 B3u 3015 2879 88.02      
33 B3u 1474 1407 4.71      
34 B3u 1442 1377 0.01      
35 B3u 966 922 0.41      
36 B3u 910 869 11.24      

Unscaled Zero Point Vibrational Energy (zpe) 26929.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 25712.3 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 B1B95/6-31G**
ABC
0.17360 0.16415 0.08703

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

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 -0.665 1.247 0.000
C4 0.665 1.247 0.000
C5 -0.665 -1.247 0.000
C6 0.665 -1.247 0.000
H7 1.202 -2.193 0.000
H8 -1.202 -2.193 0.000
H9 1.202 2.193 0.000
H10 -1.202 2.193 0.000
H11 2.169 0.000 0.869
H12 -2.169 0.000 0.869
H13 2.169 0.000 -0.869
H14 -2.169 0.000 -0.869

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98942.49431.49782.49431.49782.21263.47552.21263.47551.09993.76501.09993.7650
C22.98941.49782.49431.49782.49433.47552.21263.47552.21263.76501.09993.76501.0999
C32.49431.49781.33082.49452.82723.91433.48192.09291.08733.21602.13803.21602.1380
C41.49782.49431.33082.82722.49453.48193.91431.08732.09292.13803.21602.13803.2160
C52.49431.49782.49452.82721.33082.09291.08733.91433.48193.21602.13803.21602.1380
C61.49782.49432.82722.49451.33081.08732.09293.48193.91432.13803.21602.13803.2160
H72.21263.47553.91433.48192.09291.08732.40304.38625.00142.54964.11382.54964.1138
H83.47552.21263.48193.91431.08732.09292.40305.00144.38624.11382.54964.11382.5496
H92.21263.47552.09291.08733.91433.48194.38625.00142.40302.54964.11382.54964.1138
H103.47552.21261.08732.09293.48193.91435.00144.38622.40304.11382.54964.11382.5496
H111.09993.76503.21602.13803.21602.13802.54964.11382.54964.11384.33731.73844.6727
H123.76501.09992.13803.21602.13803.21604.11382.54964.11382.54964.33734.67271.7384
H131.09993.76503.21602.13803.21602.13802.54964.11382.54964.11381.73844.67274.3373
H143.76501.09992.13803.21602.13803.21604.11382.54964.11382.54964.67271.73844.3373

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 123.620 C1 C4 H9 116.835
C1 C6 C5 123.620 C1 C6 H7 116.835
C2 C3 C4 123.620 C2 C3 H10 116.835
C2 C5 C6 123.620 C2 C5 H8 116.835
C3 C2 C5 112.760 C3 C2 H12 109.832
C3 C2 H14 109.832 C3 C4 H9 119.544
C4 C1 C6 112.760 C4 C1 H11 109.832
C4 C1 H13 109.832 C4 C3 H10 119.544
C5 C2 H12 109.832 C5 C2 H14 109.832
C5 C6 H7 119.544 C6 C1 H11 109.832
C6 C1 H13 109.832 C6 C5 H8 119.544
H11 C1 H13 104.424 H12 C2 H14 104.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.280      
2 C -0.280      
3 C -0.094      
4 C -0.094      
5 C -0.094      
6 C -0.094      
7 H 0.100      
8 H 0.100      
9 H 0.100      
10 H 0.100      
11 H 0.134      
12 H 0.134      
13 H 0.134      
14 H 0.134      


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 -32.853 0.000 0.000
y 0.000 -34.912 0.000
z 0.000 0.000 -38.427
Traceless
 xyz
x 3.816 0.000 0.000
y 0.000 0.728 0.000
z 0.000 0.000 -4.544
Polar
3z2-r2-9.088
x2-y22.059
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.862 0.000 0.000
y 0.000 8.650 0.000
z 0.000 0.000 5.060


<r2> (average value of r2) Å2
<r2> 143.725
(<r2>)1/2 11.989