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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-233.242954
Energy at 298.15K-233.251655
Nuclear repulsion energy217.989961
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 3208 3059 0.00      
2 Ag 3011 2872 0.00      
3 Ag 1790 1707 0.00      
4 Ag 1512 1442 0.00      
5 Ag 1261 1203 0.00      
6 Ag 881 840 0.00      
7 Ag 551 525 0.00      
8 Au 1240 1183 0.00      
9 Au 1028 981 0.00      
10 Au 387 369 0.00      
11 B1g 3178 3031 0.00      
12 B1g 1428 1362 0.00      
13 B1g 1402 1337 0.00      
14 B1g 1090 1040 0.00      
15 B1g 583 556 0.00      
16 B1u 3032 2891 55.69      
17 B1u 1015 968 20.76      
18 B1u 655 624 79.25      
19 B1u 110 105 1.15      
20 B2g 3033 2892 0.00      
21 B2g 1053 1004 0.00      
22 B2g 989 944 0.00      
23 B2g 412 393 0.00      
24 B2u 3204 3055 96.35      
25 B2u 1748 1668 4.34      
26 B2u 1411 1346 1.72      
27 B2u 1212 1156 0.16      
28 B2u 976 931 0.40      
29 B3g 1243 1186 0.00      
30 B3g 742 707 0.00      
31 B3u 3179 3032 18.61      
32 B3u 3013 2873 92.10      
33 B3u 1517 1447 7.68      
34 B3u 1470 1402 0.00      
35 B3u 991 945 0.26      
36 B3u 916 874 12.71      

Unscaled Zero Point Vibrational Energy (zpe) 27234.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 25973.4 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 B1B95/6-31G
ABC
0.17280 0.16303 0.08653

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 1.500 0.000 0.000
C2 -1.500 0.000 0.000
C3 -0.668 1.251 0.000
C4 0.668 1.251 0.000
C5 -0.668 -1.251 0.000
C6 0.668 -1.251 0.000
H7 1.207 -2.195 0.000
H8 -1.207 -2.195 0.000
H9 1.207 2.195 0.000
H10 -1.207 2.195 0.000
H11 2.173 0.000 0.872
H12 -2.173 0.000 0.872
H13 2.173 0.000 -0.872
H14 -2.173 0.000 -0.872

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.00062.50301.50242.50301.50242.21413.48512.21413.48511.10113.77531.10113.7753
C23.00061.50242.50301.50242.50303.48512.21413.48512.21413.77531.10113.77531.1011
C32.50301.50241.33572.50132.83553.92233.48722.09911.08713.22402.14233.22402.1423
C41.50242.50301.33572.83552.50133.48723.92231.08712.09912.14233.22402.14233.2240
C52.50301.50242.50132.83551.33572.09911.08713.92233.48723.22402.14233.22402.1423
C61.50242.50302.83552.50131.33571.08712.09913.48723.92232.14233.22402.14233.2240
H72.21413.48513.92233.48722.09911.08712.41404.38925.00922.55134.12312.55134.1231
H83.48512.21413.48723.92231.08712.09912.41405.00924.38924.12312.55134.12312.5513
H92.21413.48512.09911.08713.92233.48724.38925.00922.41402.55134.12312.55134.1231
H103.48512.21411.08712.09913.48723.92235.00924.38922.41404.12312.55134.12312.5513
H111.10113.77533.22402.14233.22402.14232.55134.12312.55134.12314.34591.74364.6826
H123.77531.10112.14233.22402.14233.22404.12312.55134.12312.55134.34594.68261.7436
H131.10113.77533.22402.14233.22402.14232.55134.12312.55134.12311.74364.68264.3459
H143.77531.10112.14233.22402.14233.22404.12312.55134.12312.55134.68261.74364.3459

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 123.649 C1 C4 H9 116.616
C1 C6 C5 123.649 C1 C6 H7 116.616
C2 C3 C4 123.649 C2 C3 H10 116.616
C2 C5 C6 123.649 C2 C5 H8 116.616
C3 C2 C5 112.702 C3 C2 H12 109.785
C3 C2 H14 109.785 C3 C4 H9 119.735
C4 C1 C6 112.702 C4 C1 H11 109.785
C4 C1 H13 109.785 C4 C3 H10 119.735
C5 C2 H12 109.785 C5 C2 H14 109.785
C5 C6 H7 119.735 C6 C1 H11 109.785
C6 C1 H13 109.785 C6 C5 H8 119.735
H11 C1 H13 104.695 H12 C2 H14 104.695
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 -0.393      
2 C -0.393      
3 C -0.112      
4 C -0.112      
5 C -0.112      
6 C -0.112      
7 H 0.138      
8 H 0.138      
9 H 0.138      
10 H 0.138      
11 H 0.171      
12 H 0.171      
13 H 0.171      
14 H 0.171      


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 -32.867 0.000 0.000
y 0.000 -35.009 0.000
z 0.000 0.000 -38.820
Traceless
 xyz
x 4.048 0.000 0.000
y 0.000 0.834 0.000
z 0.000 0.000 -4.882
Polar
3z2-r2-9.765
x2-y22.143
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.776 0.000 0.000
y 0.000 8.317 0.000
z 0.000 0.000 4.817


<r2> (average value of r2) Å2
<r2> 144.485
(<r2>)1/2 12.020