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All results from a given calculation for C6H12 ((E)-2-Hexene)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at QCISD/3-21G*
Rotational Constants (cm-1) from geometry optimized at QCISD/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-233.502168
Energy at 298.15K-233.514360
HF Energy-232.881289
Nuclear repulsion energy224.239593
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 QCISD/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3107 2986 45.73      
2 A 3094 2974 22.57      
3 A 3087 2967 41.48      
4 A 3086 2965 32.97      
5 A 3080 2960 10.42      
6 A 3065 2946 23.99      
7 A 3062 2943 5.33      
8 A 3039 2921 4.39      
9 A 3024 2907 24.71      
10 A 3019 2902 23.89      
11 A 3014 2897 25.14      
12 A 3005 2888 15.39      
13 A 1716 1650 0.26      
14 A 1581 1520 4.78      
15 A 1578 1517 5.06      
16 A 1575 1513 7.54      
17 A 1568 1507 1.46      
18 A 1564 1503 5.58      
19 A 1555 1494 1.87      
20 A 1476 1418 3.05      
21 A 1473 1416 3.36      
22 A 1411 1356 0.88      
23 A 1393 1338 0.79      
24 A 1377 1323 0.24      
25 A 1362 1309 0.17      
26 A 1345 1293 1.17      
27 A 1303 1252 0.03      
28 A 1199 1153 0.04      
29 A 1138 1094 1.92      
30 A 1115 1072 0.03      
31 A 1096 1054 6.03      
32 A 1046 1005 2.48      
33 A 1004 965 33.29      
34 A 999 960 0.99      
35 A 948 911 1.31      
36 A 903 868 1.95      
37 A 880 846 1.35      
38 A 782 752 0.92      
39 A 753 724 2.41      
40 A 544 523 0.15      
41 A 387 372 1.16      
42 A 315 302 0.53      
43 A 290 279 1.03      
44 A 246 237 0.02      
45 A 189 181 0.74      
46 A 144 138 0.31      
47 A 93 89 0.01      
48 A 70 67 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 36548.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 35127.0 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 QCISD/3-21G*
ABC
0.46994 0.03969 0.03925

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.204 0.246 -0.157
C2 1.799 -0.341 -0.271
C3 0.753 0.029 0.488
C4 -0.657 -0.537 0.357
C5 -1.673 0.549 -0.117
C6 -3.118 -0.016 -0.223
H7 3.235 1.016 0.629
H8 3.937 -0.536 0.094
H9 3.514 0.707 -1.108
H10 1.664 -1.117 -1.031
H11 0.884 0.809 1.246
H12 -0.993 -0.940 1.327
H13 -0.655 -1.369 -0.366
H14 -1.346 0.933 -1.095
H15 -1.655 1.393 0.592
H16 -3.821 0.760 -0.561
H17 -3.150 -0.850 -0.940
H18 -3.456 -0.389 0.756

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52722.54323.97324.88676.32801.10001.10101.10102.23512.76904.60734.18874.69645.04797.05496.49486.7517
C21.52721.34392.54273.58754.92792.17102.17772.17721.09472.11243.27272.66233.49153.95935.73345.01925.3539
C32.54321.34391.52562.55403.93652.67433.25723.25992.10971.09572.16692.16072.78012.76914.74904.24794.2381
C43.97322.54271.52561.56022.58134.19934.60154.59282.76622.23111.10331.10262.17742.18443.53962.82712.8303
C54.88673.58752.55401.56021.55524.98655.71785.28383.84052.90942.18252.18551.10071.10172.20302.19432.1949
C66.32804.92793.93652.58131.55526.49277.08126.73034.97344.34272.78792.81372.19092.18871.09971.10031.1004
H71.10002.17102.67434.19934.98656.49271.78531.78533.12622.43964.71094.67024.89564.90457.15986.83426.8378
H81.10102.17773.25724.60155.71787.08121.78531.77962.60153.52955.09804.68945.61075.93577.89207.16817.4232
H91.10102.17723.25994.59285.28386.73031.78531.77962.59963.53125.38144.71634.86595.48427.35556.84547.2974
H102.23511.09472.10972.76623.84054.97343.12622.60152.59963.08323.55732.42563.64244.46625.81594.82175.4709
H112.76902.11241.09572.23112.90944.34272.43963.52953.53123.08322.56723.11673.23602.68605.04004.87904.5287
H124.60733.27272.16691.10332.18252.78794.71095.09805.38143.55732.56721.77953.08192.53373.80093.13052.5869
H134.18872.66232.16071.10262.18552.81374.67024.68944.71632.42563.11671.77952.51093.08913.81942.61163.1717
H144.69643.49152.78012.17741.10072.19094.89565.61074.86593.64243.23603.08192.51091.77532.53722.54023.1018
H155.04793.95932.76912.18441.10172.18874.90455.93575.48424.46622.68602.53373.08911.77532.53383.10022.5388
H167.05495.73344.74903.53962.20301.09977.15987.89207.35555.81595.04003.80093.81942.53722.53381.78481.7851
H176.49485.01924.24792.82712.19431.10036.83427.16816.84544.82174.87903.13052.61162.54023.10021.78481.7838
H186.75175.35394.23812.83032.19491.10046.83787.42327.29745.47094.52872.58693.17173.10182.53881.78511.7838

picture of (E)-2-Hexene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.575 C1 C2 H10 115.980
C2 C1 H7 110.396 C2 C1 H8 110.863
C2 C1 H9 110.824 C2 C3 C4 124.656
C2 C3 H11 119.620 C3 C2 H10 119.445
C3 C4 C5 111.715 C3 C4 H12 109.990
C3 C4 H13 109.542 C4 C3 H11 115.704
C4 C5 C6 111.904 C4 C5 H14 108.592
C4 C5 H15 109.078 C5 C4 H12 108.840
C5 C4 H13 109.105 C5 C6 H16 110.988
C5 C6 H17 110.268 C5 C6 H18 110.308
C6 C5 H14 109.978 C6 C5 H15 109.750
H7 C1 H8 108.415 H7 C1 H9 108.416
H8 C1 H9 107.833 H12 C4 H13 107.551
H14 C5 H15 107.425 H16 C6 H17 108.437
H16 C6 H18 108.463 H17 C6 H18 108.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability