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

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-232.024958
Energy at 298.15K-232.033569
Nuclear repulsion energy218.180280
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 LSDA/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 3125 3062 0.00      
2 Ag 2919 2860 0.00      
3 Ag 1758 1722 0.00      
4 Ag 1447 1418 0.00      
5 Ag 1216 1192 0.00      
6 Ag 887 869 0.00      
7 Ag 547 536 0.00      
8 Au 1189 1165 0.00      
9 Au 981 961 0.00      
10 Au 382 374 0.00      
11 B1g 3097 3035 0.00      
12 B1g 1389 1361 0.00      
13 B1g 1352 1325 0.00      
14 B1g 1071 1049 0.00      
15 B1g 581 569 0.00      
16 B1u 2936 2876 39.96      
17 B1u 975 955 15.22      
18 B1u 630 618 86.33      
19 B1u 118 115 1.61      
20 B2g 2937 2878 0.00      
21 B2g 1008 987 0.00      
22 B2g 955 936 0.00      
23 B2g 408 400 0.00      
24 B2u 3122 3059 71.86      
25 B2u 1716 1681 4.40      
26 B2u 1371 1343 4.07      
27 B2u 1165 1141 0.04      
28 B2u 969 950 0.55      
29 B3g 1193 1169 0.00      
30 B3g 717 702 0.00      
31 B3u 3098 3035 11.41      
32 B3u 2921 2862 80.92      
33 B3u 1453 1424 15.53      
34 B3u 1420 1391 0.09      
35 B3u 971 951 0.02      
36 B3u 918 899 16.53      

Unscaled Zero Point Vibrational Energy (zpe) 26470.7 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 25933.4 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 LSDA/6-31G
ABC
0.17399 0.16330 0.08692

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.493 0.000 0.000
C2 -1.493 0.000 0.000
C3 -0.670 1.244 0.000
C4 0.670 1.244 0.000
C5 -0.670 -1.244 0.000
C6 0.670 -1.244 0.000
H7 1.213 -2.198 0.000
H8 -1.213 -2.198 0.000
H9 1.213 2.198 0.000
H10 -1.213 2.198 0.000
H11 2.181 0.000 0.876
H12 -2.181 0.000 0.876
H13 2.181 0.000 -0.876
H14 -2.181 0.000 -0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98652.49521.49222.49521.49222.21623.48642.21623.48641.11363.77741.11363.7774
C22.98651.49222.49521.49222.49523.48642.21623.48642.21623.77741.11363.77741.1136
C32.49521.49221.33912.48852.82603.92363.48522.11021.09793.23142.14483.23142.1448
C41.49222.49521.33912.82602.48853.48523.92361.09792.11022.14483.23142.14483.2314
C52.49521.49222.48852.82601.33912.11021.09793.92363.48523.23142.14483.23142.1448
C61.49222.49522.82602.48851.33911.09792.11023.48523.92362.14483.23142.14483.2314
H72.21623.48643.92363.48522.11021.09792.42524.39685.02132.55694.13742.55694.1374
H83.48642.21623.48523.92361.09792.11022.42525.02134.39684.13742.55694.13742.5569
H92.21623.48642.11021.09793.92363.48524.39685.02132.42522.55694.13742.55694.1374
H103.48642.21621.09792.11023.48523.92365.02134.39682.42524.13742.55694.13742.5569
H111.11363.77743.23142.14483.23142.14482.55694.13742.55694.13744.36251.75134.7009
H123.77741.11362.14483.23142.14483.23144.13742.55694.13742.55694.36254.70091.7513
H131.11363.77743.23142.14483.23142.14482.55694.13742.55694.13741.75134.70094.3625
H143.77741.11362.14483.23142.14483.23144.13742.55694.13742.55694.70091.75134.3625

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 123.505 C1 C4 H9 116.848
C1 C6 C5 123.505 C1 C6 H7 116.848
C2 C3 C4 123.505 C2 C3 H10 116.848
C2 C5 C6 123.505 C2 C5 H8 116.848
C3 C2 C5 112.991 C3 C2 H12 109.940
C3 C2 H14 109.940 C3 C4 H9 119.647
C4 C1 C6 112.991 C4 C1 H11 109.940
C4 C1 H13 109.940 C4 C3 H10 119.647
C5 C2 H12 109.940 C5 C2 H14 109.940
C5 C6 H7 119.647 C6 C1 H11 109.940
C6 C1 H13 109.940 C6 C5 H8 119.647
H11 C1 H13 103.688 H12 C2 H14 103.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.435      
2 C -0.435      
3 C -0.100      
4 C -0.100      
5 C -0.100      
6 C -0.100      
7 H 0.137      
8 H 0.137      
9 H 0.137      
10 H 0.137      
11 H 0.181      
12 H 0.181      
13 H 0.181      
14 H 0.181      


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 -32.669 0.000 0.000
y 0.000 -35.053 0.000
z 0.000 0.000 -38.907
Traceless
 xyz
x 4.310 0.000 0.000
y 0.000 0.735 0.000
z 0.000 0.000 -5.046
Polar
3z2-r2-10.091
x2-y22.383
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.099 0.000 0.000
y 0.000 8.611 0.000
z 0.000 0.000 4.948


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000