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

using model chemistry: QCISD/6-31G*

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/6-31G*
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-235.031693
Energy at 298.15K-235.043930
HF Energy-234.178110
Nuclear repulsion energy226.008514
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3156 3005 47.70      
2 A 3143 2993 24.52      
3 A 3136 2986 31.86      
4 A 3135 2986 10.75      
5 A 3132 2982 51.48      
6 A 3114 2965 26.57      
7 A 3096 2949 24.53      
8 A 3075 2928 5.31      
9 A 3058 2912 25.31      
10 A 3054 2908 51.99      
11 A 3053 2908 18.00      
12 A 3034 2890 22.34      
13 A 1780 1695 0.38      
14 A 1560 1485 4.70      
15 A 1549 1475 4.87      
16 A 1546 1473 7.91      
17 A 1545 1471 0.97      
18 A 1537 1463 0.97      
19 A 1531 1458 5.62      
20 A 1468 1398 2.13      
21 A 1466 1396 2.19      
22 A 1439 1370 0.39      
23 A 1382 1316 0.68      
24 A 1367 1302 0.47      
25 A 1350 1285 0.15      
26 A 1328 1265 4.84      
27 A 1290 1229 0.31      
28 A 1212 1154 0.05      
29 A 1148 1093 0.87      
30 A 1125 1071 0.67      
31 A 1096 1043 0.75      
32 A 1090 1038 2.57      
33 A 1067 1016 3.44      
34 A 1006 958 28.88      
35 A 953 907 3.35      
36 A 926 882 2.07      
37 A 895 852 0.29      
38 A 781 744 0.45      
39 A 754 718 1.83      
40 A 542 517 0.12      
41 A 394 375 1.07      
42 A 317 302 0.63      
43 A 290 276 1.14      
44 A 252 240 0.02      
45 A 198 189 0.56      
46 A 146 139 0.25      
47 A 94 90 0.03      
48 A 76 72 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 36840.9 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 35083.6 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/6-31G*
ABC
0.49151 0.04016 0.03969

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.184 0.219 -0.165
C2 1.800 -0.367 -0.226
C3 0.741 0.098 0.451
C4 -0.648 -0.478 0.380
C5 -1.677 0.524 -0.163
C6 -3.094 -0.050 -0.203
H7 3.216 1.086 0.507
H8 3.912 -0.520 0.198
H9 3.522 0.544 -1.158
H10 1.670 -1.237 -0.875
H11 0.868 0.971 1.100
H12 -0.966 -0.805 1.383
H13 -0.642 -1.377 -0.254
H14 -1.371 0.837 -1.172
H15 -1.662 1.431 0.459
H16 -3.812 0.681 -0.596
H17 -3.138 -0.942 -0.842
H18 -3.428 -0.342 0.802

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.50442.52233.93284.87056.28401.09681.09881.09882.21732.74384.54644.14644.70525.03447.02406.46366.7056
C21.50441.33992.52403.58944.90412.15692.16022.15991.09372.10113.22992.64253.52033.96085.72015.00935.3276
C32.52231.33991.50542.53073.89332.66533.24103.24392.09911.09472.14462.14152.76352.74834.70764.21924.2066
C43.93282.52401.50541.53522.55064.17034.56434.56062.74362.21691.10231.10042.15802.16343.50762.81222.8148
C54.87053.58942.53071.53521.52964.97025.69735.29333.84882.87572.15912.16681.09951.10052.18382.17842.1787
C66.28404.90413.89332.55061.52966.45057.03366.71114.95614.29362.75912.78902.16702.16411.09721.09811.0981
H71.09682.15692.66534.17034.97026.45051.77731.77743.11362.42454.67284.63974.89014.89067.12496.80486.8018
H81.09882.16023.24104.56435.69737.03361.77731.76702.58693.50795.02894.65615.62355.91217.85687.13937.3671
H91.09882.15993.24394.56065.29336.71111.77741.76702.58473.51075.33144.67394.90125.50277.35626.83137.2750
H102.21731.09372.09912.74363.84884.95613.11362.58692.58473.06933.49872.39833.69274.47325.81454.81785.4411
H112.74382.10111.09472.21692.87574.29362.42453.50793.51073.06932.56873.10253.19162.65014.98564.84524.5016
H124.54643.22992.14461.10232.15912.75914.67285.02895.33143.49872.56871.76453.06352.51783.77113.11232.5711
H134.14642.64252.14151.10042.16682.78904.63974.65614.67392.39833.10251.76452.50503.07243.79492.60143.1541
H144.70523.52032.76352.15801.09952.16704.89015.62354.90123.69273.19163.06352.50501.76032.51272.52943.0849
H155.03443.96082.74832.16341.10052.16414.89065.91215.50274.47322.65012.51783.07241.76032.50933.08302.5259
H167.02405.72014.70763.50762.18381.09727.12497.85687.35625.81454.98563.77113.79492.51272.50931.77421.7745
H176.46365.00934.21922.81222.17841.09816.80487.13936.83134.81784.84523.11232.60142.52943.08301.77421.7734
H186.70565.32764.20662.81482.17871.09816.80187.36717.27505.44114.50162.57113.15413.08492.52591.77451.7734

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 124.848 C1 C2 H10 116.283
C2 C1 H7 111.062 C2 C1 H8 111.202
C2 C1 H9 111.178 C2 C3 C4 124.918
C2 C3 H11 118.975 C3 C2 H10 118.869
C3 C4 C5 112.672 C3 C4 H12 109.687
C3 C4 H13 109.554 C4 C3 H11 116.100
C4 C5 C6 112.660 C4 C5 H14 108.857
C4 C5 H15 109.222 C5 C4 H12 108.782
C5 C4 H13 109.487 C5 C6 H16 111.410
C5 C6 H17 110.928 C5 C6 H18 110.951
C6 C5 H14 109.944 C6 C5 H15 109.665
H7 C1 H8 108.092 H7 C1 H9 108.100
H8 C1 H9 107.040 H12 C4 H13 106.465
H14 C5 H15 106.288 H16 C6 H17 107.832
H16 C6 H18 107.863 H17 C6 H18 107.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability