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All results from a given calculation for C6H12 ((Z)-hex-2-ene)

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 (C1)

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-233.500127
Energy at 298.15K-233.512357
HF Energy-232.878700
Nuclear repulsion energy228.259631
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 3125 3029 56.39      
2 A 3108 3012 4.80      
3 A 3094 2999 38.10      
4 A 3087 2992 32.38      
5 A 3085 2990 33.73      
6 A 3071 2976 1.79      
7 A 3064 2970 22.15      
8 A 3053 2959 2.49      
9 A 3025 2932 26.83      
10 A 3021 2928 13.34      
11 A 3019 2926 28.84      
12 A 3014 2921 10.62      
13 A 1705 1653 0.14      
14 A 1583 1534 6.99      
15 A 1578 1529 6.66      
16 A 1577 1528 4.39      
17 A 1570 1522 3.80      
18 A 1568 1519 1.51      
19 A 1558 1510 0.55      
20 A 1475 1430 3.96      
21 A 1473 1428 3.48      
22 A 1471 1426 5.87      
23 A 1408 1365 0.69      
24 A 1371 1329 0.03      
25 A 1348 1307 0.42      
26 A 1336 1295 0.80      
27 A 1306 1265 0.18      
28 A 1199 1162 1.35      
29 A 1136 1101 2.75      
30 A 1113 1079 0.40      
31 A 1097 1063 0.82      
32 A 1025 993 1.91      
33 A 1007 976 0.37      
34 A 981 950 3.49      
35 A 922 893 0.79      
36 A 898 870 9.63      
37 A 866 839 3.03      
38 A 761 738 2.36      
39 A 726 703 32.97      
40 A 582 564 6.55      
41 A 475 460 0.98      
42 A 368 357 0.02      
43 A 301 291 0.04      
44 A 243 235 0.00      
45 A 201 195 0.01      
46 A 105 102 0.22      
47 A 93 90 0.00      
48 A 33 32 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 36610.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 35483.1 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
0.26116 0.05020 0.04600

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 2.423 1.006 -0.034
C2 2.002 -0.456 -0.176
C3 0.798 -0.988 0.108
C4 -0.446 -0.253 0.604
C5 -1.544 -0.184 -0.503
C6 -2.837 0.514 0.005
H7 1.606 1.631 0.347
H8 3.277 1.094 0.656
H9 2.738 1.409 -1.010
H10 2.787 -1.120 -0.549
H11 0.652 -2.060 -0.059
H12 -0.198 0.769 0.926
H13 -0.858 -0.782 1.479
H14 -1.136 0.362 -1.368
H15 -1.779 -1.206 -0.841
H16 -3.599 0.557 -0.787
H17 -3.256 -0.036 0.861
H18 -2.614 1.541 0.330

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52832.57653.19744.16815.28351.09721.10121.10132.21793.54102.80154.03193.85544.81696.08535.84345.0787
C21.52831.34692.57713.57144.93892.18752.17242.17151.09382.09992.74873.32083.45553.91185.72455.37635.0552
C32.57651.34691.52702.54983.93402.75053.28323.28022.09941.09462.17852.15992.78212.75454.74514.23174.2525
C43.19742.57711.52701.56102.58182.79663.95883.93763.54022.21511.09971.10312.17812.18483.54032.83072.8277
C54.16813.57142.54981.56101.55493.73285.11994.59684.43132.92182.18222.18201.10071.10162.20292.19462.1944
C65.28354.93893.93402.58181.55494.59376.17575.73755.88314.33562.80702.78782.19102.18881.09971.10041.1004
H71.09722.18752.75052.79663.73284.59371.78201.78143.12503.83312.08083.62943.47414.57305.43355.16534.2207
H81.10122.17243.28323.95885.11996.17571.78201.77842.56784.16493.50014.61444.90995.75247.04566.63325.9167
H91.10132.17153.28023.93764.59685.73751.78141.77842.57134.15843.57474.89204.02985.22256.39806.44405.5193
H102.21791.09382.09943.54024.43135.88313.12502.56782.57132.38423.82814.18534.27354.57666.60696.29996.0852
H113.54102.09991.09462.21512.92184.33563.83314.16494.15842.38423.11302.50513.28292.69265.04444.49584.8766
H122.80152.74872.17851.09972.18222.80702.08083.50013.57473.82813.11301.77432.51173.08563.81393.16332.6057
H134.03193.32082.15991.10312.18202.78783.62944.61444.89204.18532.50511.77433.08162.53233.80072.58693.1310
H143.85543.45552.78212.17811.10072.19103.47414.90994.02984.27353.28292.51173.08161.77472.53743.10182.5411
H154.81693.91182.75452.18481.10162.18884.57305.75245.22254.57662.69263.08562.53231.77472.53422.53903.1004
H166.08535.72454.74513.54032.20291.09975.43357.04566.39806.60695.04443.81393.80072.53742.53421.78501.7847
H175.84345.37634.23172.83072.19461.10045.16536.63326.44406.29994.49583.16332.58693.10182.53901.78501.7837
H185.07875.05524.25252.82772.19441.10044.22075.91675.51936.08524.87662.60573.13102.54113.10041.78471.7837

picture of (Z)-hex-2-ene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 127.187 C1 C2 H10 114.508
C2 C1 H7 111.805 C2 C1 H8 110.359
C2 C1 H9 110.286 C2 C3 C4 127.357
C2 C3 H11 118.284 C3 C2 H10 118.305
C3 C4 C5 111.319 C3 C4 H12 111.023
C3 C4 H13 109.353 C4 C3 H11 114.324
C4 C5 C6 111.908 C4 C5 H14 108.593
C4 C5 H15 109.055 C5 C4 H12 108.972
C5 C4 H13 108.753 C5 C6 H16 110.999
C5 C6 H17 110.310 C5 C6 H18 110.290
C6 C5 H14 110.008 C6 C5 H15 109.785
H7 C1 H8 108.312 H7 C1 H9 108.251
H8 C1 H9 107.702 H12 C4 H13 107.312
H14 C5 H16 94.423 H16 C6 H17 108.453
H16 C6 H18 108.426 H17 C6 H18 108.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability