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

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-232.672129
Energy at 298.15K-232.680553
HF Energy-231.873144
Nuclear repulsion energy217.625625
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 MP2/6-311G*
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 3201 3042 0.00      
2 Ag 3043 2892 0.00      
3 Ag 1743 1656 0.00      
4 Ag 1507 1432 0.00      
5 Ag 1241 1179 0.00      
6 Ag 875 832 0.00      
7 Ag 539 512 0.00      
8 Au 1234 1173 0.00      
9 Au 954 907 0.00      
10 Au 363 345 0.00      
11 B1g 3177 3019 0.00      
12 B1g 1427 1356 0.00      
13 B1g 1381 1312 0.00      
14 B1g 1072 1019 0.00      
15 B1g 575 546 0.00      
16 B1u 3071 2918 40.01      
17 B1u 1002 952 28.24      
18 B1u 626 595 80.04      
19 B1u 60 57 0.63      
20 B2g 3072 2919 0.00      
21 B2g 991 941 0.00      
22 B2g 951 904 0.00      
23 B2g 335 319 0.00      
24 B2u 3200 3041 72.61      
25 B2u 1699 1614 3.50      
26 B2u 1408 1338 0.95      
27 B2u 1192 1133 0.09      
28 B2u 965 917 0.54      
29 B3g 1241 1179 0.00      
30 B3g 717 681 0.00      
31 B3u 3177 3019 14.81      
32 B3u 3045 2894 71.72      
33 B3u 1509 1434 8.79      
34 B3u 1451 1379 0.39      
35 B3u 968 920 0.75      
36 B3u 918 873 10.08      

Unscaled Zero Point Vibrational Energy (zpe) 26963.8 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 25623.7 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 MP2/6-311G*
ABC
0.17212 0.16253 0.08621

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.502 0.000 0.000
C2 -1.502 0.000 0.000
C3 -0.670 1.253 0.000
C4 0.670 1.253 0.000
C5 -0.670 -1.253 0.000
C6 0.670 -1.253 0.000
H7 1.206 -2.201 0.000
H8 -1.206 -2.201 0.000
H9 1.206 2.201 0.000
H10 -1.206 2.201 0.000
H11 2.173 0.000 0.871
H12 -2.173 0.000 0.871
H13 2.173 0.000 -0.871
H14 -2.173 0.000 -0.871

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.00472.50821.50392.50821.50392.22143.48992.22143.48991.09963.77741.09963.7774
C23.00471.50392.50821.50392.50823.48992.22143.48992.22143.77741.09963.77741.0996
C32.50821.50391.34102.50582.84213.93103.49562.10231.08913.22732.14173.22732.1417
C41.50392.50821.34102.84212.50583.49563.93101.08912.10232.14173.22732.14173.2273
C52.50821.50392.50582.84211.34102.10231.08913.93103.49563.22732.14173.22732.1417
C61.50392.50822.84212.50581.34101.08912.10233.49563.93102.14173.22732.14173.2273
H72.22143.48993.93103.49562.10231.08912.41134.40305.02002.55774.12582.55774.1258
H83.48992.22143.49563.93101.08912.10232.41135.02004.40304.12582.55774.12582.5577
H92.22143.48992.10231.08913.93103.49564.40305.02002.41132.55774.12582.55774.1258
H103.48992.22141.08912.10233.49563.93105.02004.40302.41134.12582.55774.12582.5577
H111.09963.77743.22732.14173.22732.14172.55774.12582.55774.12584.34641.74264.6827
H123.77741.09962.14173.22732.14173.22734.12582.55774.12582.55774.34644.68271.7426
H131.09963.77743.22732.14173.22732.14172.55774.12582.55774.12581.74264.68274.3464
H143.77741.09962.14173.22732.14173.22734.12582.55774.12582.55774.68271.74264.3464

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 123.581 C1 C4 H9 116.988
C1 C6 C5 123.581 C1 C6 H7 116.988
C2 C3 C4 123.581 C2 C3 H10 116.988
C2 C5 C6 123.581 C2 C5 H8 116.988
C3 C2 C5 112.838 C3 C2 H12 109.721
C3 C2 H14 109.721 C3 C4 H9 119.431
C4 C1 C6 112.838 C4 C1 H11 109.721
C4 C1 H13 109.721 C4 C3 H10 119.431
C5 C2 H12 109.721 C5 C2 H14 109.721
C5 C6 H7 119.431 C6 C1 H11 109.721
C6 C1 H13 109.721 C6 C5 H8 119.431
H11 C1 H13 104.809 H12 C2 H14 104.809
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability