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

using model chemistry: MP2/3-21G*

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-233.430076
Energy at 298.15K-233.442360
HF Energy-232.882549
Nuclear repulsion energy225.026639
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 MP2/3-21G*
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 3008 51.88      
2 A 3156 3002 43.07      
3 A 3153 3000 30.59      
4 A 3145 2992 7.32      
5 A 3142 2989 5.82      
6 A 3133 2980 20.83      
7 A 3128 2975 6.57      
8 A 3100 2949 4.72      
9 A 3084 2934 27.59      
10 A 3079 2929 18.58      
11 A 3072 2922 21.41      
12 A 3059 2910 15.80      
13 A 1712 1628 0.35      
14 A 1606 1528 4.55      
15 A 1603 1525 5.60      
16 A 1598 1520 7.81      
17 A 1591 1513 1.59      
18 A 1586 1509 6.04      
19 A 1574 1497 2.17      
20 A 1493 1420 2.77      
21 A 1491 1418 3.77      
22 A 1424 1354 1.04      
23 A 1408 1339 0.95      
24 A 1393 1325 0.31      
25 A 1378 1311 0.19      
26 A 1360 1293 1.32      
27 A 1320 1256 0.03      
28 A 1215 1155 0.03      
29 A 1153 1097 2.57      
30 A 1131 1075 0.08      
31 A 1110 1056 6.85      
32 A 1062 1010 3.56      
33 A 1024 974 35.43      
34 A 1017 967 0.79      
35 A 960 914 1.61      
36 A 915 870 2.56      
37 A 893 849 1.37      
38 A 789 750 1.07      
39 A 763 725 2.60      
40 A 550 523 0.18      
41 A 392 373 1.37      
42 A 318 303 0.64      
43 A 295 280 1.08      
44 A 253 241 0.02      
45 A 196 186 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) 37145.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 35336.4 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 MP2/3-21G*
ABC
0.46844 0.04004 0.03961

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.189 0.255 -0.150
C2 1.790 -0.323 -0.290
C3 0.750 -0.003 0.498
C4 -0.656 -0.555 0.338
C5 -1.662 0.551 -0.091
C6 -3.104 0.000 -0.229
H7 3.223 0.971 0.679
H8 3.923 -0.536 0.045
H9 3.492 0.774 -1.068
H10 1.647 -1.049 -1.093
H11 0.888 0.726 1.300
H12 -0.998 -0.998 1.285
H13 -0.653 -1.351 -0.419
H14 -1.328 0.971 -1.048
H15 -1.643 1.361 0.649
H16 -3.798 0.791 -0.536
H17 -3.136 -0.799 -0.978
H18 -3.447 -0.410 0.727

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52072.53713.95994.86066.29911.09601.09681.09682.22872.75984.60044.17334.66115.02057.01846.46506.7272
C21.52071.34352.53593.56624.90502.16082.16992.16931.09122.10713.27252.65363.45983.93665.70304.99565.3356
C32.53711.34351.51872.54393.92212.66443.24923.25192.10411.09232.15982.15112.76722.75794.73124.23174.2230
C43.95992.53591.51871.55572.57394.18254.58834.57722.75572.22481.09941.09912.16882.17723.52842.81792.8220
C54.86063.56622.54391.55571.54984.96355.69145.25053.80912.91032.17572.17801.09661.09762.19502.18592.1866
C66.29914.90503.92212.57391.54986.46567.05306.69434.94164.33632.77922.80572.18342.18131.09551.09591.0959
H71.09602.16082.66444.18254.96356.46561.77851.77843.11502.42824.69724.65034.86814.88147.12806.80516.8121
H81.09682.16993.24924.58835.69147.05301.77851.77242.59573.51775.09584.67115.57165.91077.85587.13697.4027
H91.09682.16933.25194.57725.25056.69431.77841.77242.59403.51925.37004.70324.82445.44567.30966.81217.2649
H102.22871.09122.10412.75573.80914.94163.11502.59572.59403.07343.55662.41543.59644.43375.77414.79015.4469
H112.75982.10711.09232.22482.91034.33632.42823.51773.51923.07342.55573.10573.23772.68905.03354.86854.5183
H124.60043.27252.15981.09942.17572.77924.69725.09585.37003.55662.55571.77423.07042.52643.78873.11902.5795
H134.17332.65362.15111.09912.17802.80574.65034.67114.70322.41543.10571.77422.49913.07823.80692.60383.1636
H144.66113.45982.76722.16881.09662.18344.86815.57164.82443.59643.23773.07042.49911.76912.52882.53053.0903
H155.02053.93662.75792.17721.09762.18134.88145.91075.44564.43372.68902.52643.07821.76912.52523.08862.5297
H167.01845.70304.73123.52842.19501.09557.12807.85587.30965.77415.03353.78873.80692.52882.52521.77771.7781
H176.46504.99564.23172.81792.18591.09596.80517.13696.81214.79014.86853.11902.60382.53053.08861.77771.7769
H186.72725.33564.22302.82202.18661.09596.81217.40277.26495.44694.51832.57953.16363.09032.52971.77811.7769

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 124.589 C1 C2 H10 116.181
C2 C1 H7 110.279 C2 C1 H8 110.962
C2 C1 H9 110.909 C2 C3 C4 124.629
C2 C3 H11 119.427 C3 C2 H10 119.229
C3 C4 C5 111.667 C3 C4 H12 110.134
C3 C4 H13 109.468 C4 C3 H11 115.917
C4 C5 C6 111.955 C4 C5 H14 108.466
C4 C5 H15 109.060 C5 C4 H12 108.838
C5 C4 H13 109.032 C5 C6 H16 110.989
C5 C6 H17 110.243 C5 C6 H18 110.296
C6 C5 H14 110.001 C6 C5 H15 109.783
H7 C1 H8 108.397 H7 C1 H9 108.395
H8 C1 H9 107.804 H12 C4 H13 107.607
H14 C5 H15 107.459 H16 C6 H17 108.437
H16 C6 H18 108.469 H17 C6 H18 108.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability