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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-233.361103
Energy at 298.15K-233.369753
Nuclear repulsion energy218.325388
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 mPW1PW91/6-31G*
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 3209 3043 0.00      
2 Ag 3023 2867 0.00      
3 Ag 1798 1705 0.00      
4 Ag 1500 1423 0.00      
5 Ag 1243 1179 0.00      
6 Ag 881 835 0.00      
7 Ag 544 516 0.00      
8 Au 1233 1169 0.00      
9 Au 1009 957 0.00      
10 Au 384 365 0.00      
11 B1g 3184 3020 0.00      
12 B1g 1435 1361 0.00      
13 B1g 1381 1310 0.00      
14 B1g 1066 1011 0.00      
15 B1g 581 550 0.00      
16 B1u 3041 2883 51.33      
17 B1u 1003 951 20.72      
18 B1u 638 605 63.36      
19 B1u 124 118 0.95      
20 B2g 3042 2884 0.00      
21 B2g 1027 974 0.00      
22 B2g 979 929 0.00      
23 B2g 407 386 0.00      
24 B2u 3207 3041 81.20      
25 B2u 1751 1661 5.83      
26 B2u 1413 1340 0.03      
27 B2u 1193 1131 0.01      
28 B2u 970 920 0.12      
29 B3g 1239 1175 0.00      
30 B3g 730 692 0.00      
31 B3u 3185 3020 18.74      
32 B3u 3025 2868 92.41      
33 B3u 1504 1426 4.59      
34 B3u 1461 1385 0.04      
35 B3u 978 927 0.38      
36 B3u 917 870 11.01      

Unscaled Zero Point Vibrational Energy (zpe) 27150.4 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 25746.7 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 mPW1PW91/6-31G*
ABC
0.17307 0.16387 0.08682

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.496 0.000 0.000
C2 -1.496 0.000 0.000
C3 -0.666 1.249 0.000
C4 0.666 1.249 0.000
C5 -0.666 -1.249 0.000
C6 0.666 -1.249 0.000
H7 1.204 -2.195 0.000
H8 -1.204 -2.195 0.000
H9 1.204 2.195 0.000
H10 -1.204 2.195 0.000
H11 2.170 0.000 0.870
H12 -2.170 0.000 0.870
H13 2.170 0.000 -0.870
H14 -2.170 0.000 -0.870

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.99182.49691.49992.49691.49992.21433.47952.21433.47951.10113.76801.10113.7680
C22.99181.49992.49691.49992.49693.47952.21433.47952.21433.76801.10113.76801.1011
C32.49691.49991.33192.49872.83153.91923.48612.09531.08793.21902.14043.21902.1404
C41.49992.49691.33192.83152.49873.48613.91921.08792.09532.14043.21902.14043.2190
C52.49691.49992.49872.83151.33192.09531.08793.91923.48613.21902.14043.21902.1404
C61.49992.49692.83152.49871.33191.08792.09533.48613.91922.14043.21902.14043.2190
H72.21433.47953.91923.48612.09531.08792.40784.39005.00692.55144.11832.55144.1183
H83.47952.21433.48613.91921.08792.09532.40785.00694.39004.11832.55144.11832.5514
H92.21433.47952.09531.08793.91923.48614.39005.00692.40782.55144.11832.55144.1183
H103.47952.21431.08792.09533.48613.91925.00694.39002.40784.11832.55144.11832.5514
H111.10113.76803.21902.14043.21902.14042.55144.11832.55144.11834.34041.74094.6765
H123.76801.10112.14043.21902.14043.21904.11832.55144.11832.55144.34044.67651.7409
H131.10113.76803.21902.14043.21902.14042.55144.11832.55144.11831.74094.67654.3404
H143.76801.10112.14043.21902.14043.21904.11832.55144.11832.55144.67651.74094.3404

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 123.596 C1 C4 H9 116.770
C1 C6 C5 123.596 C1 C6 H7 116.770
C2 C3 C4 123.596 C2 C3 H10 116.770
C2 C5 C6 123.596 C2 C5 H8 116.770
C3 C2 C5 112.808 C3 C2 H12 109.808
C3 C2 H14 109.808 C3 C4 H9 119.635
C4 C1 C6 112.808 C4 C1 H11 109.808
C4 C1 H13 109.808 C4 C3 H10 119.635
C5 C2 H12 109.808 C5 C2 H14 109.808
C5 C6 H7 119.635 C6 C1 H11 109.808
C6 C1 H13 109.808 C6 C5 H8 119.635
H11 C1 H13 104.472 H12 C2 H14 104.472
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.402      
2 C -0.402      
3 C -0.137      
4 C -0.137      
5 C -0.137      
6 C -0.137      
7 H 0.156      
8 H 0.156      
9 H 0.156      
10 H 0.156      
11 H 0.183      
12 H 0.183      
13 H 0.183      
14 H 0.183      


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 -34.741 0.000 0.000
y 0.000 -32.749 0.000
z 0.000 0.000 -38.559
Traceless
 xyz
x 0.913 0.000 0.000
y 0.000 3.901 0.000
z 0.000 0.000 -4.814
Polar
3z2-r2-9.628
x2-y2-1.992
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> 143.948
(<r2>)1/2 11.998