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

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-233.297684
Energy at 298.15K-233.306146
Nuclear repulsion energy216.128222
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/6-31G**
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 3090 3066 0.00      
2 Ag 2903 2880 0.00      
3 Ag 1702 1689 0.00      
4 Ag 1440 1429 0.00      
5 Ag 1201 1192 0.00      
6 Ag 831 825 0.00      
7 Ag 528 524 0.00      
8 Au 1177 1168 0.00      
9 Au 960 953 0.00      
10 Au 369 366 0.00      
11 B1g 3065 3042 0.00      
12 B1g 1360 1350 0.00      
13 B1g 1328 1318 0.00      
14 B1g 1016 1008 0.00      
15 B1g 563 559 0.00      
16 B1u 2906 2884 66.12      
17 B1u 964 956 14.52      
18 B1u 615 610 45.71      
19 B1u 121 120 0.98      
20 B2g 2907 2885 0.00      
21 B2g 976 968 0.00      
22 B2g 944 937 0.00      
23 B2g 391 388 0.00      
24 B2u 3087 3063 99.40      
25 B2u 1658 1646 7.96      
26 B2u 1342 1332 0.56      
27 B2u 1152 1143 0.00      
28 B2u 917 910 0.01      
29 B3g 1187 1178 0.00      
30 B3g 699 693 0.00      
31 B3u 3065 3042 22.97      
32 B3u 2904 2881 111.82      
33 B3u 1445 1434 1.70      
34 B3u 1407 1396 0.25      
35 B3u 944 937 0.18      
36 B3u 865 859 8.84      

Unscaled Zero Point Vibrational Energy (zpe) 26015.0 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 25814.6 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/6-31G**
ABC
0.16932 0.16069 0.08502

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.511 0.000 0.000
C2 -1.511 0.000 0.000
C3 -0.672 1.264 0.000
C4 0.672 1.264 0.000
C5 -0.672 -1.264 0.000
C6 0.672 -1.264 0.000
H7 1.216 -2.215 0.000
H8 -1.216 -2.215 0.000
H9 1.216 2.215 0.000
H10 -1.216 2.215 0.000
H11 2.193 0.000 0.875
H12 -2.193 0.000 0.875
H13 2.193 0.000 -0.875
H14 -2.193 0.000 -0.875

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.02102.52251.51662.52251.51662.23473.51332.23473.51331.11003.80561.11003.8056
C23.02101.51662.52251.51662.52253.51332.23473.51332.23473.80561.11003.80561.1100
C32.52251.51661.34492.52802.86343.95893.52152.11481.09583.25192.16253.25192.1625
C41.51662.52251.34492.86342.52803.52153.95891.09582.11482.16253.25192.16253.2519
C52.52251.51662.52802.86341.34492.11481.09583.95893.52153.25192.16253.25192.1625
C61.51662.52252.86342.52801.34491.09582.11483.52153.95892.16253.25192.16253.2519
H72.23473.51333.95893.52152.11481.09582.43274.43055.05442.57444.15902.57444.1590
H83.51332.23473.52153.95891.09582.11482.43275.05444.43054.15902.57444.15902.5744
H92.23473.51332.11481.09583.95893.52154.43055.05442.43272.57444.15902.57444.1590
H103.51332.23471.09582.11483.52153.95895.05444.43052.43274.15902.57444.15902.5744
H111.11003.80563.25192.16253.25192.16252.57444.15902.57444.15904.38621.75064.7226
H123.80561.11002.16253.25192.16253.25194.15902.57444.15902.57444.38624.72261.7506
H131.11003.80563.25192.16253.25192.16252.57444.15902.57444.15901.75064.72264.3862
H143.80561.11002.16253.25192.16253.25194.15902.57444.15902.57444.72261.75064.3862

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 123.546 C1 C4 H9 116.693
C1 C6 C5 123.546 C1 C6 H7 116.693
C2 C3 C4 123.546 C2 C3 H10 116.693
C2 C5 C6 123.546 C2 C5 H8 116.693
C3 C2 C5 112.907 C3 C2 H12 109.866
C3 C2 H14 109.866 C3 C4 H9 119.760
C4 C1 C6 112.907 C4 C1 H11 109.866
C4 C1 H13 109.866 C4 C3 H10 119.760
C5 C2 H12 109.866 C5 C2 H14 109.866
C5 C6 H7 119.760 C6 C1 H11 109.866
C6 C1 H13 109.866 C6 C5 H8 119.760
H11 C1 H13 104.107 H12 C2 H14 104.107
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.214      
2 C -0.214      
3 C -0.042      
4 C -0.042      
5 C -0.042      
6 C -0.042      
7 H 0.052      
8 H 0.052      
9 H 0.052      
10 H 0.052      
11 H 0.097      
12 H 0.097      
13 H 0.097      
14 H 0.097      


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 -35.619 0.000 0.000
y 0.000 -33.552 0.000
z 0.000 0.000 -38.564
Traceless
 xyz
x 0.439 0.000 0.000
y 0.000 3.540 0.000
z 0.000 0.000 -3.979
Polar
3z2-r2-7.958
x2-y2-2.067
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> 146.806
(<r2>)1/2 12.116