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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-233.440055
Energy at 298.15K-233.452342
HF Energy-232.882610
Nuclear repulsion energy225.068474
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=FULL/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 3162 2998 51.75      
2 A 3157 2993 42.72      
3 A 3154 2990 30.45      
4 A 3145 2982 7.41      
5 A 3143 2979 5.78      
6 A 3133 2970 20.72      
7 A 3128 2965 6.56      
8 A 3101 2939 4.72      
9 A 3084 2924 27.57      
10 A 3079 2919 18.45      
11 A 3072 2912 21.33      
12 A 3059 2900 15.76      
13 A 1712 1623 0.35      
14 A 1606 1522 4.58      
15 A 1603 1519 5.63      
16 A 1598 1515 7.84      
17 A 1591 1508 1.61      
18 A 1586 1503 6.07      
19 A 1574 1492 2.19      
20 A 1493 1415 2.76      
21 A 1491 1414 3.83      
22 A 1424 1350 1.03      
23 A 1408 1335 0.95      
24 A 1393 1320 0.31      
25 A 1378 1306 0.19      
26 A 1360 1289 1.29      
27 A 1320 1251 0.03      
28 A 1215 1151 0.03      
29 A 1153 1093 2.58      
30 A 1131 1072 0.08      
31 A 1110 1053 6.86      
32 A 1062 1007 3.57      
33 A 1024 971 35.46      
34 A 1017 964 0.77      
35 A 960 911 1.62      
36 A 915 867 2.57      
37 A 893 847 1.37      
38 A 789 748 1.06      
39 A 763 723 2.62      
40 A 550 522 0.18      
41 A 393 372 1.36      
42 A 318 302 0.64      
43 A 295 279 1.08      
44 A 253 240 0.02      
45 A 196 185 0.86      
46 A 147 139 0.35      
47 A 95 90 0.02      
48 A 73 69 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 37151.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 35219.7 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=FULL/3-21G*
ABC
0.46869 0.04005 0.03963

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.188 0.255 -0.150
C2 1.789 -0.323 -0.290
C3 0.749 -0.002 0.498
C4 -0.656 -0.555 0.339
C5 -1.662 0.551 -0.092
C6 -3.104 0.000 -0.229
H7 3.222 0.972 0.678
H8 3.922 -0.536 0.046
H9 3.492 0.772 -1.068
H10 1.646 -1.050 -1.091
H11 0.888 0.728 1.298
H12 -0.998 -0.997 1.285
H13 -0.653 -1.351 -0.418
H14 -1.328 0.970 -1.048
H15 -1.642 1.361 0.648
H16 -3.798 0.790 -0.537
H17 -3.135 -0.800 -0.977
H18 -3.447 -0.410 0.728

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52032.53673.95914.85986.29791.09591.09671.09662.22842.75934.59954.17254.66045.01987.01746.46386.7259
C21.52031.34322.53543.56564.90412.16052.16962.16901.09102.10673.27182.65313.45953.93615.70224.99475.3346
C32.53671.34321.51842.54333.92122.66403.24873.25142.10371.09212.15942.15082.76662.75734.73034.23074.2221
C43.95912.53541.51841.55542.57334.18184.58754.57642.75512.22441.09921.09902.16842.17683.52772.81722.8213
C54.85983.56562.54331.55541.54954.96265.69055.24983.80862.90952.17522.17761.09651.09742.19472.18552.1862
C66.29794.90413.92122.57331.54956.46447.05176.69334.94074.33522.77852.80502.18302.18091.09531.09571.0958
H71.09592.16052.66404.18184.96266.46441.77821.77823.11452.42784.69644.64964.86724.88057.12696.80396.8108
H81.09672.16963.24874.58755.69057.05171.77821.77212.59543.51725.09474.67055.57095.90987.85467.13577.4012
H91.09662.16903.25144.57645.24986.69331.77821.77212.59363.51865.36914.70244.82395.44517.30886.81107.2637
H102.22841.09102.10372.75513.80864.94073.11452.59542.59363.07293.55572.41483.59624.43325.77344.78925.4458
H112.75932.10671.09212.22442.90954.33522.42783.51723.51863.07292.55543.10523.23672.68825.03254.86744.5174
H124.59953.27182.15941.09922.17522.77854.69645.09475.36913.55572.55541.77393.06992.52593.78793.11832.5788
H134.17252.65312.15081.09902.17762.80504.64964.67054.70242.41483.10521.77392.49873.07773.80622.60313.1628
H144.66043.45952.76662.16841.09652.18304.86725.57094.82393.59623.23673.06992.49871.76882.52852.53013.0898
H155.01983.93612.75732.17681.09742.18094.88055.90985.44514.43322.68822.52593.07771.76882.52493.08822.5293
H167.01745.70224.73033.52772.19471.09537.12697.85467.30885.77345.03253.78793.80622.52852.52491.77751.7778
H176.46384.99474.23072.81722.18551.09576.80397.13576.81104.78924.86743.11832.60312.53013.08821.77751.7766
H186.72595.33464.22212.82132.18621.09586.81087.40127.26375.44584.51742.57883.16283.08982.52931.77781.7766

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 124.593 C1 C2 H10 116.184
C2 C1 H7 110.283 C2 C1 H8 110.966
C2 C1 H9 110.914 C2 C3 C4 124.634
C2 C3 H11 119.422 C3 C2 H10 119.222
C3 C4 C5 111.665 C3 C4 H12 110.137
C3 C4 H13 109.470 C4 C3 H11 115.917
C4 C5 C6 111.951 C4 C5 H14 108.468
C4 C5 H15 109.062 C5 C4 H12 108.836
C5 C4 H13 109.033 C5 C6 H16 110.999
C5 C6 H17 110.246 C5 C6 H18 110.297
C6 C5 H14 110.003 C6 C5 H15 109.784
H7 C1 H8 108.392 H7 C1 H9 108.390
H8 C1 H9 107.799 H12 C4 H13 107.603
H14 C5 H15 107.456 H16 C6 H17 108.432
H16 C6 H18 108.464 H17 C6 H18 108.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability