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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-233.309121
Energy at 298.15K-233.317537
Nuclear repulsion energy215.863752
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 BLYP/6-31+G**
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 3088 3071 0.00      
2 Ag 2905 2889 0.00      
3 Ag 1685 1676 0.00      
4 Ag 1430 1422 0.00      
5 Ag 1196 1189 0.00      
6 Ag 826 822 0.00      
7 Ag 527 524 0.00      
8 Au 1173 1167 0.00      
9 Au 957 952 0.00      
10 Au 370 368 0.00      
11 B1g 3064 3048 0.00      
12 B1g 1353 1346 0.00      
13 B1g 1323 1316 0.00      
14 B1g 1011 1005 0.00      
15 B1g 562 559 0.00      
16 B1u 2907 2892 44.67      
17 B1u 958 953 29.71      
18 B1u 610 607 73.98      
19 B1u 105 105 1.76      
20 B2g 2909 2894 0.00      
21 B2g 971 966 0.00      
22 B2g 934 929 0.00      
23 B2g 385 383 0.00      
24 B2u 3086 3070 96.94      
25 B2u 1639 1630 14.62      
26 B2u 1334 1327 0.03      
27 B2u 1150 1143 0.00      
28 B2u 913 908 0.07      
29 B3g 1183 1176 0.00      
30 B3g 693 690 0.00      
31 B3u 3064 3048 25.60      
32 B3u 2906 2890 109.07      
33 B3u 1434 1426 6.49      
34 B3u 1398 1390 0.01      
35 B3u 940 935 0.28      
36 B3u 860 855 11.68      

Unscaled Zero Point Vibrational Energy (zpe) 25922.5 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 25785.1 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 BLYP/6-31+G**
ABC
0.16892 0.16023 0.08479

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.513 0.000 0.000
C2 -1.513 0.000 0.000
C3 -0.674 1.265 0.000
C4 0.674 1.265 0.000
C5 -0.674 -1.265 0.000
C6 0.674 -1.265 0.000
H7 1.216 -2.218 0.000
H8 -1.216 -2.218 0.000
H9 1.216 2.218 0.000
H10 -1.216 2.218 0.000
H11 2.194 0.000 0.877
H12 -2.194 0.000 0.877
H13 2.194 0.000 -0.877
H14 -2.194 0.000 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.02612.52681.51832.52681.51832.23763.51702.23763.51701.10973.80881.10973.8088
C23.02611.51832.52681.51832.52683.51702.23763.51702.23763.80881.10973.80881.1097
C32.52681.51831.34812.53092.86763.96333.52532.11681.09603.25462.16303.25462.1630
C41.51832.52681.34812.86762.53093.52533.96331.09602.11682.16303.25462.16303.2546
C52.52681.51832.53092.86761.34812.11681.09603.96333.52533.25462.16303.25462.1630
C61.51832.52682.86762.53091.34811.09602.11683.52533.96332.16303.25462.16303.2546
H72.23763.51703.96333.52532.11681.09602.43284.43585.05912.57724.16112.57724.1611
H83.51702.23763.52533.96331.09602.11682.43285.05914.43584.16112.57724.16112.5772
H92.23763.51702.11681.09603.96333.52534.43585.05912.43282.57724.16112.57724.1611
H103.51702.23761.09602.11683.52533.96335.05914.43582.43284.16112.57724.16112.5772
H111.10973.80883.25462.16303.25462.16302.57724.16112.57724.16114.38701.75314.7243
H123.80881.10972.16303.25462.16303.25464.16112.57724.16112.57724.38704.72431.7531
H131.10973.80883.25462.16303.25462.16302.57724.16112.57724.16111.75314.72434.3870
H143.80881.10972.16303.25462.16303.25464.16112.57724.16112.57724.72431.75314.3870

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 123.545 C1 C4 H9 116.797
C1 C6 C5 123.545 C1 C6 H7 116.797
C2 C3 C4 123.545 C2 C3 H10 116.797
C2 C5 C6 123.545 C2 C5 H8 116.797
C3 C2 C5 112.911 C3 C2 H12 109.807
C3 C2 H14 109.807 C3 C4 H9 119.659
C4 C1 C6 112.911 C4 C1 H11 109.807
C4 C1 H13 109.807 C4 C3 H10 119.659
C5 C2 H12 109.807 C5 C2 H14 109.807
C5 C6 H7 119.659 C6 C1 H11 109.807
C6 C1 H13 109.807 C6 C5 H8 119.659
H11 C1 H13 104.355 H12 C2 H14 104.355
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.616      
2 C -0.616      
3 C 0.052      
4 C 0.052      
5 C 0.052      
6 C 0.052      
7 H 0.105      
8 H 0.105      
9 H 0.105      
10 H 0.105      
11 H 0.151      
12 H 0.151      
13 H 0.151      
14 H 0.151      


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 -37.011 0.000 0.000
y 0.000 -34.292 0.000
z 0.000 0.000 -40.321
Traceless
 xyz
x 0.295 0.000 0.000
y 0.000 4.374 0.000
z 0.000 0.000 -4.669
Polar
3z2-r2-9.338
x2-y2-2.719
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> 147.918
(<r2>)1/2 12.162