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

using model chemistry: MP2/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 MP2/TZVP
 hartrees
Energy at 0K-232.746019
Energy at 298.15K 
HF Energy-231.905029
Nuclear repulsion energy218.347659
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 MP2/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 3217 3050 0.00      
2 Ag 3052 2893 0.00      
3 Ag 1741 1651 0.00      
4 Ag 1493 1415 0.00      
5 Ag 1238 1173 0.00      
6 Ag 873 828 0.00      
7 Ag 540 512 0.00      
8 Au 1185 1123 0.00      
9 Au 895 848 0.00      
10 Au 302 286 0.00      
11 B1g 3192 3026 0.00      
12 B1g 1422 1348 0.00      
13 B1g 1376 1304 0.00      
14 B1g 1064 1009 0.00      
15 B1g 573 543 0.00      
16 B1u 3081 2920 31.98      
17 B1u 1001 949 30.06      
18 B1u 608 576 71.24      
19 B1u 66i 63i 0.79      
20 B2g 3081 2921 0.00      
21 B2g 973 922 0.00      
22 B2g 906 859 0.00      
23 B2g 219 208 0.00      
24 B2u 3215 3048 65.01      
25 B2u 1697 1608 6.91      
26 B2u 1406 1333 0.03      
27 B2u 1188 1126 0.11      
28 B2u 961 911 0.19      
29 B3g 1206 1143 0.00      
30 B3g 701 665 0.00      
31 B3u 3192 3026 12.63      
32 B3u 3054 2895 73.18      
33 B3u 1493 1415 7.05      
34 B3u 1451 1375 0.14      
35 B3u 963 912 0.90      
36 B3u 913 866 9.01      

Unscaled Zero Point Vibrational Energy (zpe) 26702.9 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 25311.7 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 MP2/TZVP
ABC
0.17315 0.16369 0.08680

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.500 0.000 0.000
C2 -1.500 0.000 0.000
C3 -0.668 1.249 0.000
C4 0.668 1.249 0.000
C5 -0.668 -1.249 0.000
C6 0.668 -1.249 0.000
H7 1.204 -2.193 0.000
H8 -1.204 -2.193 0.000
H9 1.204 2.193 0.000
H10 -1.204 2.193 0.000
H11 2.163 0.000 0.873
H12 -2.163 0.000 0.873
H13 2.163 0.000 -0.873
H14 -2.163 0.000 -0.873

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.99912.50171.50082.50171.50082.21313.48102.21313.48101.09583.76461.09583.7646
C22.99911.50082.50171.50082.50173.48102.21313.48102.21313.76461.09583.76461.0958
C32.50171.50081.33572.49862.83323.91833.48402.09601.08543.21452.13453.21452.1345
C41.50082.50171.33572.83322.49863.48403.91831.08542.09602.13453.21452.13453.2145
C52.50171.50082.49862.83321.33572.09601.08543.91833.48403.21452.13453.21452.1345
C61.50082.50172.83322.49861.33571.08542.09603.48403.91832.13453.21452.13453.2145
H72.21313.48103.91833.48402.09601.08542.40724.38655.00362.54784.11132.54784.1113
H83.48102.21313.48403.91831.08542.09602.40725.00364.38654.11132.54784.11132.5478
H92.21313.48102.09601.08543.91833.48404.38655.00362.40722.54784.11132.54784.1113
H103.48102.21311.08542.09603.48403.91835.00364.38652.40724.11132.54784.11132.5478
H111.09583.76463.21452.13453.21452.13452.54784.11132.54784.11134.32511.74504.6639
H123.76461.09582.13453.21452.13453.21454.11132.54784.11132.54784.32514.66391.7450
H131.09583.76463.21452.13453.21452.13452.54784.11132.54784.11131.74504.66394.3251
H143.76461.09582.13453.21452.13453.21454.11132.54784.11132.54784.66391.74504.3251

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 123.654 C1 C4 H9 116.770
C1 C6 C5 123.654 C1 C6 H7 116.770
C2 C3 C4 123.654 C2 C3 H10 116.770
C2 C5 C6 123.654 C2 C5 H8 116.770
C3 C2 C5 112.692 C3 C2 H12 109.590
C3 C2 H14 109.590 C3 C4 H9 119.576
C4 C1 C6 112.692 C4 C1 H11 109.590
C4 C1 H13 109.590 C4 C3 H10 119.576
C5 C2 H12 109.590 C5 C2 H14 109.590
C5 C6 H7 119.576 C6 C1 H11 109.590
C6 C1 H13 109.590 C6 C5 H8 119.576
H11 C1 H13 105.540 H12 C2 H14 105.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability