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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-232.494774
Energy at 298.15K-232.503592
HF Energy-231.833330
Nuclear repulsion energy218.818941
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 CID/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 3301 3049 0.00      
2 Ag 3128 2890 0.00      
3 Ag 1877 1734 0.00      
4 Ag 1581 1460 0.00      
5 Ag 1299 1200 0.00      
6 Ag 906 837 0.00      
7 Ag 565 522 0.00      
8 Au 1291 1193 0.00      
9 Au 1058 978 0.00      
10 Au 398 368 0.00      
11 B1g 3275 3025 0.00      
12 B1g 1507 1392 0.00      
13 B1g 1451 1340 0.00      
14 B1g 1109 1024 0.00      
15 B1g 602 556 0.00      
16 B1u 3150 2910 56.34      
17 B1u 1068 987 27.89      
18 B1u 674 623 60.93      
19 B1u 119 110 0.63      
20 B2g 3151 2910 0.00      
21 B2g 1085 1002 0.00      
22 B2g 1023 945 0.00      
23 B2g 403 373 0.00      
24 B2u 3298 3046 77.82      
25 B2u 1832 1692 3.60      
26 B2u 1485 1372 0.04      
27 B2u 1250 1154 0.10      
28 B2u 1004 927 0.26      
29 B3g 1296 1197 0.00      
30 B3g 773 714 0.00      
31 B3u 3275 3025 17.01      
32 B3u 3129 2890 83.49      
33 B3u 1582 1461 2.82      
34 B3u 1524 1407 0.34      
35 B3u 1021 943 1.09      
36 B3u 949 877 7.91      

Unscaled Zero Point Vibrational Energy (zpe) 28218.5 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 26065.4 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 CID/6-31G*
ABC
0.17335 0.16478 0.08713

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.000 0.000
C2 -1.494 0.000 0.000
C3 -0.662 1.249 0.000
C4 0.662 1.249 0.000
C5 -0.662 -1.249 0.000
C6 0.662 -1.249 0.000
H7 1.197 -2.190 0.000
H8 -1.197 -2.190 0.000
H9 1.197 2.190 0.000
H10 -1.197 2.190 0.000
H11 2.161 0.000 0.868
H12 -2.161 0.000 0.868
H13 2.161 0.000 -0.868
H14 -2.161 0.000 -0.868

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98892.49241.50072.49241.50072.21013.47022.21013.47021.09423.75681.09423.7568
C22.98891.50072.49241.50072.49243.47022.21013.47022.21013.75681.09423.75681.0942
C32.49241.50071.32492.49792.82753.90973.48042.08441.08263.20682.13503.20682.1350
C41.50072.49241.32492.82752.49793.48043.90971.08262.08442.13503.20682.13503.2068
C52.49241.50072.49792.82751.32492.08441.08263.90973.48043.20682.13503.20682.1350
C61.50072.49242.82752.49791.32491.08262.08443.48043.90972.13503.20682.13503.2068
H72.21013.47023.90973.48042.08441.08262.39484.38014.99212.54514.10212.54514.1021
H83.47022.21013.48043.90971.08262.08442.39484.99214.38014.10212.54514.10212.5451
H92.21013.47022.08441.08263.90973.48044.38014.99212.39482.54514.10212.54514.1021
H103.47022.21011.08262.08443.48043.90974.99214.38012.39484.10212.54514.10212.5451
H111.09423.75683.20682.13503.20682.13502.54514.10212.54514.10214.32151.73594.6571
H123.75681.09422.13503.20682.13503.20684.10212.54514.10212.54514.32154.65711.7359
H131.09423.75683.20682.13503.20682.13502.54514.10212.54514.10211.73594.65714.3215
H143.75681.09422.13503.20682.13503.20684.10212.54514.10212.54514.65711.73594.3215

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 123.670 C1 C4 H9 116.715
C1 C6 C5 123.670 C1 C6 H7 116.715
C2 C3 C4 123.670 C2 C3 H10 116.715
C2 C5 C6 123.670 C2 C5 H8 116.715
C3 C2 C5 112.660 C3 C2 H12 109.731
C3 C2 H14 109.731 C3 C4 H9 119.615
C4 C1 C6 112.660 C4 C1 H11 109.731
C4 C1 H13 109.731 C4 C3 H10 119.615
C5 C2 H12 109.731 C5 C2 H14 109.731
C5 C6 H7 119.615 C6 C1 H11 109.731
C6 C1 H13 109.731 C6 C5 H8 119.615
H11 C1 H13 104.974 H12 C2 H14 104.974
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability