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

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-232.708968
Energy at 298.15K-232.717577
HF Energy-231.850856
Nuclear repulsion energy216.353894
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 CCD/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 3206 3067 0.00      
2 Ag 3038 2907 0.00      
3 Ag 1785 1708 0.00      
4 Ag 1478 1414 0.00      
5 Ag 1226 1173 0.00      
6 Ag 875 837 0.00      
7 Ag 537 514 0.00      
8 Au 1221 1168 0.00      
9 Au 997 954 0.00      
10 Au 373 357 0.00      
11 B1g 3179 3042 0.00      
12 B1g 1435 1372 0.00      
13 B1g 1366 1307 0.00      
14 B1g 1064 1018 0.00      
15 B1g 573 549 0.00      
16 B1u 3069 2936 49.01      
17 B1u 1002 959 23.83      
18 B1u 637 610 51.99      
19 B1u 114 109 0.72      
20 B2g 3069 2937 0.00      
21 B2g 1009 966 0.00      
22 B2g 968 926 0.00      
23 B2g 373 357 0.00      
24 B2u 3203 3065 69.98      
25 B2u 1744 1668 4.62      
26 B2u 1406 1345 0.04      
27 B2u 1177 1126 0.09      
28 B2u 966 924 0.09      
29 B3g 1228 1175 0.00      
30 B3g 731 699 0.00      
31 B3u 3180 3042 15.15      
32 B3u 3039 2908 82.60      
33 B3u 1480 1416 3.75      
34 B3u 1445 1383 0.21      
35 B3u 970 928 0.47      
36 B3u 915 876 7.77      

Unscaled Zero Point Vibrational Energy (zpe) 27039.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 25869.1 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 CCD/cc-pVDZ
ABC
0.17009 0.16077 0.08527

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

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 -0.673 1.260 0.000
C4 0.673 1.260 0.000
C5 -0.673 -1.260 0.000
C6 0.673 -1.260 0.000
H7 1.213 -2.216 0.000
H8 -1.213 -2.216 0.000
H9 1.213 2.216 0.000
H10 -1.213 2.216 0.000
H11 2.185 0.000 0.881
H12 -2.185 0.000 0.881
H13 2.185 0.000 -0.881
H14 -2.185 0.000 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.02272.52141.51332.52141.51332.23633.51162.23633.51161.10923.80011.10923.8001
C23.02271.51332.52141.51332.52143.51162.23633.51162.23633.80011.10923.80011.1092
C32.52141.51331.34562.51962.85643.95443.51772.11411.09823.24532.15663.24532.1566
C41.51332.52141.34562.85642.51963.51773.95441.09822.11412.15663.24532.15663.2453
C52.52141.51332.51962.85641.34562.11411.09823.95443.51773.24532.15663.24532.1566
C61.51332.52142.85642.51961.34561.09822.11413.51773.95442.15663.24532.15663.2453
H72.23633.51163.95443.51772.11411.09822.42504.43265.05262.57574.15132.57574.1513
H83.51162.23633.51773.95441.09822.11412.42505.05264.43264.15132.57574.15132.5757
H92.23633.51162.11411.09823.95443.51774.43265.05262.42502.57574.15132.57574.1513
H103.51162.23631.09822.11413.51773.95445.05264.43262.42504.15132.57574.15132.5757
H111.10923.80013.24532.15663.24532.15662.57574.15132.57574.15134.37061.76204.7124
H123.80011.10922.15663.24532.15663.24534.15132.57574.15132.57574.37064.71241.7620
H131.10923.80013.24532.15663.24532.15662.57574.15132.57574.15131.76204.71244.3706
H143.80011.10922.15663.24532.15663.24534.15132.57574.15132.57574.71241.76204.3706

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 123.648 C1 C4 H9 116.919
C1 C6 C5 123.648 C1 C6 H7 116.919
C2 C3 C4 123.648 C2 C3 H10 116.919
C2 C5 C6 123.648 C2 C5 H8 116.919
C3 C2 C5 112.705 C3 C2 H12 109.674
C3 C2 H14 109.674 C3 C4 H9 119.434
C4 C1 C6 112.705 C4 C1 H11 109.674
C4 C1 H13 109.674 C4 C3 H10 119.434
C5 C2 H12 109.674 C5 C2 H14 109.674
C5 C6 H7 119.434 C6 C1 H11 109.674
C6 C1 H13 109.674 C6 C5 H8 119.434
H11 C1 H13 105.168 H12 C2 H14 105.168
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CCD/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.058     0.000
2 C 0.058     0.000
3 C -0.106     0.000
4 C -0.106     0.000
5 C -0.106     0.000
6 C -0.106     0.000
7 H 0.025     0.000
8 H 0.025     0.000
9 H 0.025     0.000
10 H 0.025     0.000
11 H 0.052     0.000
12 H 0.052     0.000
13 H 0.052     0.000
14 H 0.052     0.000


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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> 0.000
(<r2>)1/2 0.000