return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-233.415646
Energy at 298.15K-233.424318
HF Energy-233.415646
Nuclear repulsion energy218.714032
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 wB97X-D/TZVP
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 3203 3059 0.00      
2 Ag 3027 2891 0.00      
3 Ag 1787 1707 0.00      
4 Ag 1476 1409 0.00      
5 Ag 1250 1193 0.00      
6 Ag 870 831 0.00      
7 Ag 551 526 0.00      
8 Au 1242 1186 0.00      
9 Au 1011 965 0.00      
10 Au 391 373 0.00      
11 B1g 3178 3035 0.00      
12 B1g 1429 1365 0.00      
13 B1g 1383 1321 0.00      
14 B1g 1059 1011 0.00      
15 B1g 586 559 0.00      
16 B1u 3045 2908 35.96      
17 B1u 993 949 33.05      
18 B1u 631 602 74.13      
19 B1u 112 107 1.49      
20 B2g 3047 2910 0.00      
21 B2g 1031 985 0.00      
22 B2g 969 925 0.00      
23 B2g 396 378 0.00      
24 B2u 3201 3057 63.65      
25 B2u 1740 1662 8.29      
26 B2u 1404 1341 0.68      
27 B2u 1205 1151 0.16      
28 B2u 962 919 0.44      
29 B3g 1242 1186 0.00      
30 B3g 727 695 0.00      
31 B3u 3179 3036 14.95      
32 B3u 3028 2892 81.91      
33 B3u 1478 1411 10.36      
34 B3u 1456 1391 1.09      
35 B3u 985 940 0.63      
36 B3u 904 863 13.29      

Unscaled Zero Point Vibrational Energy (zpe) 27087.5 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 25868.6 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 wB97X-D/TZVP
ABC
0.17309 0.16486 0.08710

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.491 0.000 0.000
C2 -1.491 0.000 0.000
C3 -0.662 1.250 0.000
C4 0.662 1.250 0.000
C5 -0.662 -1.250 0.000
C6 0.662 -1.250 0.000
H7 1.195 -2.195 0.000
H8 -1.195 -2.195 0.000
H9 1.195 2.195 0.000
H10 -1.195 2.195 0.000
H11 2.160 0.000 0.870
H12 -2.160 0.000 0.870
H13 2.160 0.000 -0.870
H14 -2.160 0.000 -0.870

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98152.48931.49972.48931.49972.21493.46852.21493.46851.09713.75251.09713.7525
C22.98151.49972.48931.49972.48933.46852.21493.46852.21493.75251.09713.75251.0971
C32.48931.49971.32412.49982.82883.91353.48592.08351.08503.20632.13573.20632.1357
C41.49972.48931.32412.82882.49983.48593.91351.08502.08352.13573.20632.13573.2063
C52.48931.49972.49982.82881.32412.08351.08503.91353.48593.20632.13573.20632.1357
C61.49972.48932.82882.49981.32411.08502.08353.48593.91352.13573.20632.13573.2063
H72.21493.46853.91353.48592.08351.08502.38954.39014.99832.55064.10202.55064.1020
H83.46852.21493.48593.91351.08502.08352.38954.99834.39014.10202.55064.10202.5506
H92.21493.46852.08351.08503.91353.48594.39014.99832.38952.55064.10202.55064.1020
H103.46852.21491.08502.08353.48593.91354.99834.39012.38954.10202.55064.10202.5506
H111.09713.75253.20632.13573.20632.13572.55064.10202.55064.10204.31921.73924.6562
H123.75251.09712.13573.20632.13573.20634.10202.55064.10202.55064.31924.65621.7392
H131.09713.75253.20632.13573.20632.13572.55064.10202.55064.10201.73924.65624.3192
H143.75251.09712.13573.20632.13573.20634.10202.55064.10202.55064.65621.73924.3192

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 117.047
C1 C6 C5 123.545 C1 C6 H7 117.047
C2 C3 C4 123.545 C2 C3 H10 117.047
C2 C5 C6 123.545 C2 C5 H8 117.047
C3 C2 C5 112.910 C3 C2 H12 109.688
C3 C2 H14 109.688 C3 C4 H9 119.408
C4 C1 C6 112.910 C4 C1 H11 109.688
C4 C1 H13 109.688 C4 C3 H10 119.408
C5 C2 H12 109.688 C5 C2 H14 109.688
C5 C6 H7 119.408 C6 C1 H11 109.688
C6 C1 H13 109.688 C6 C5 H8 119.408
H11 C1 H13 104.869 H12 C2 H14 104.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.148      
2 C -0.148      
3 C -0.179      
4 C -0.179      
5 C -0.179      
6 C -0.179      
7 H 0.130      
8 H 0.130      
9 H 0.130      
10 H 0.130      
11 H 0.123      
12 H 0.123      
13 H 0.123      
14 H 0.123      


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 -33.366 0.000 0.000
y 0.000 -35.638 0.000
z 0.000 0.000 -39.434
Traceless
 xyz
x 4.170 0.000 0.000
y 0.000 0.762 0.000
z 0.000 0.000 -4.932
Polar
3z2-r2-9.864
x2-y22.272
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.741 0.000 0.000
y 0.000 9.197 0.000
z 0.000 0.000 6.724


<r2> (average value of r2) Å2
<r2> 144.045
(<r2>)1/2 12.002