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/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-233.357899
Energy at 298.15K-233.366557
HF Energy-233.357899
Nuclear repulsion energy217.976995
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/cc-pVDZ
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 3215 3063 0.00      
2 Ag 3029 2886 0.00      
3 Ag 1791 1706 0.00      
4 Ag 1476 1406 0.00      
5 Ag 1246 1187 0.00      
6 Ag 871 830 0.00      
7 Ag 547 521 0.00      
8 Au 1236 1177 0.00      
9 Au 1011 963 0.00      
10 Au 390 372 0.00      
11 B1g 3190 3039 0.00      
12 B1g 1433 1365 0.00      
13 B1g 1378 1313 0.00      
14 B1g 1059 1009 0.00      
15 B1g 581 554 0.00      
16 B1u 3051 2907 34.60      
17 B1u 992 945 37.78      
18 B1u 628 599 80.39      
19 B1u 112 107 1.68      
20 B2g 3053 2908 0.00      
21 B2g 1029 980 0.00      
22 B2g 964 918 0.00      
23 B2g 397 378 0.00      
24 B2u 3213 3060 77.00      
25 B2u 1744 1661 11.07      
26 B2u 1407 1340 0.40      
27 B2u 1201 1144 0.07      
28 B2u 964 918 0.45      
29 B3g 1238 1179 0.00      
30 B3g 726 691 0.00      
31 B3u 3190 3039 19.21      
32 B3u 3030 2887 88.16      
33 B3u 1478 1408 9.45      
34 B3u 1453 1384 0.77      
35 B3u 977 931 0.53      
36 B3u 907 864 12.93      

Unscaled Zero Point Vibrational Energy (zpe) 27104.1 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 25819.4 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 wB97X-D/cc-pVDZ
ABC
0.17218 0.16351 0.08650

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.497 0.000 0.000
C2 -1.497 0.000 0.000
C3 -0.666 1.253 0.000
C4 0.666 1.253 0.000
C5 -0.666 -1.253 0.000
C6 0.666 -1.253 0.000
H7 1.200 -2.201 0.000
H8 -1.200 -2.201 0.000
H9 1.200 2.201 0.000
H10 -1.200 2.201 0.000
H11 2.168 0.000 0.872
H12 -2.168 0.000 0.872
H13 2.168 0.000 -0.872
H14 -2.168 0.000 -0.872

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.99472.50031.50392.50031.50392.22083.48152.22083.48151.09983.76761.09983.7676
C22.99471.50392.50031.50392.50033.48152.22083.48152.22083.76761.09983.76761.0998
C32.50031.50391.33242.50662.83873.92623.49522.09321.08773.21922.14153.21922.1415
C41.50392.50031.33242.83872.50663.49523.92621.08772.09322.14153.21922.14153.2192
C52.50031.50392.50662.83871.33242.09321.08773.92623.49523.21922.14153.21922.1415
C61.50392.50032.83872.50661.33241.08772.09323.49523.92622.14153.21922.14153.2192
H72.22083.48153.92623.49522.09321.08772.40064.40175.01372.55734.11702.55734.1170
H83.48152.22083.49523.92621.08772.09322.40065.01374.40174.11702.55734.11702.5573
H92.22083.48152.09321.08773.92623.49524.40175.01372.40062.55734.11702.55734.1170
H103.48152.22081.08772.09323.49523.92625.01374.40172.40064.11702.55734.11702.5573
H111.09983.76763.21922.14153.21922.14152.55734.11702.55734.11704.33611.74334.6734
H123.76761.09982.14153.21922.14153.21924.11702.55734.11702.55734.33614.67341.7433
H131.09983.76763.21922.14153.21922.14152.55734.11702.55734.11701.74334.67344.3361
H143.76761.09982.14153.21922.14153.21924.11702.55734.11702.55734.67341.74334.3361

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 123.551 C1 C4 H9 117.039
C1 C6 C5 123.551 C1 C6 H7 117.039
C2 C3 C4 123.551 C2 C3 H10 117.039
C2 C5 C6 123.551 C2 C5 H8 117.039
C3 C2 C5 112.898 C3 C2 H12 109.697
C3 C2 H14 109.697 C3 C4 H9 119.410
C4 C1 C6 112.898 C4 C1 H11 109.697
C4 C1 H13 109.697 C4 C3 H10 119.410
C5 C2 H12 109.697 C5 C2 H14 109.697
C5 C6 H7 119.410 C6 C1 H11 109.697
C6 C1 H13 109.697 C6 C5 H8 119.410
H11 C1 H13 104.845 H12 C2 H14 104.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.575      
2 C -0.575      
3 C -0.021      
4 C -0.021      
5 C -0.021      
6 C -0.021      
7 H 0.143      
8 H 0.143      
9 H 0.143      
10 H 0.143      
11 H 0.165      
12 H 0.165      
13 H 0.165      
14 H 0.165      


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 -33.236 0.000 0.000
y 0.000 -35.801 0.000
z 0.000 0.000 -39.704
Traceless
 xyz
x 4.517 0.000 0.000
y 0.000 0.669 0.000
z 0.000 0.000 -5.186
Polar
3z2-r2-10.372
x2-y22.565
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.744 0.000 0.000
y 0.000 9.221 0.000
z 0.000 0.000 7.058


<r2> (average value of r2) Å2
<r2> 144.923
(<r2>)1/2 12.038