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

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 (C1)

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-233.427972
Energy at 298.15K-233.440270
HF Energy-232.879950
Nuclear repulsion energy229.233293
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 3181 3026 52.75      
2 A 3166 3012 5.18      
3 A 3156 3003 56.86      
4 A 3152 2999 31.37      
5 A 3147 2994 1.82      
6 A 3132 2979 7.28      
7 A 3131 2978 17.13      
8 A 3115 2963 1.72      
9 A 3085 2935 29.92      
10 A 3078 2928 12.74      
11 A 3078 2928 20.04      
12 A 3071 2921 11.59      
13 A 1701 1618 0.24      
14 A 1606 1528 5.85      
15 A 1603 1525 7.02      
16 A 1599 1521 5.72      
17 A 1592 1515 3.15      
18 A 1590 1512 2.66      
19 A 1577 1500 0.81      
20 A 1491 1419 1.23      
21 A 1490 1418 7.11      
22 A 1486 1413 5.88      
23 A 1421 1352 0.97      
24 A 1389 1322 0.01      
25 A 1361 1295 0.41      
26 A 1352 1286 0.96      
27 A 1322 1258 0.21      
28 A 1213 1154 1.66      
29 A 1150 1094 3.53      
30 A 1129 1074 0.45      
31 A 1109 1055 0.76      
32 A 1040 989 2.30      
33 A 1019 969 0.42      
34 A 996 948 4.51      
35 A 935 889 0.83      
36 A 911 867 10.35      
37 A 879 837 3.48      
38 A 771 733 2.61      
39 A 736 700 36.04      
40 A 589 561 7.25      
41 A 483 460 1.17      
42 A 372 354 0.02      
43 A 304 290 0.05      
44 A 249 237 0.00      
45 A 203 193 0.01      
46 A 108 103 0.26      
47 A 95 91 0.00      
48 A 35 33 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 37198.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 35387.4 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
0.25842 0.05108 0.04670

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 2.387 1.017 -0.017
C2 1.993 -0.442 -0.187
C3 0.799 -0.999 0.095
C4 -0.445 -0.293 0.608
C5 -1.520 -0.157 -0.511
C6 -2.817 0.512 0.010
H7 1.567 1.612 0.394
H8 3.248 1.106 0.656
H9 2.674 1.451 -0.983
H10 2.781 -1.085 -0.578
H11 0.672 -2.065 -0.095
H12 -0.201 0.706 0.989
H13 -0.874 -0.866 1.442
H14 -1.095 0.434 -1.331
H15 -1.749 -1.154 -0.909
H16 -3.560 0.603 -0.790
H17 -3.252 -0.083 0.821
H18 -2.599 1.514 0.396

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.52162.56873.18284.10945.22861.09351.09701.09712.21183.52902.79434.03853.76694.75586.01135.80645.0275
C21.52161.34662.56883.53914.90762.17702.16462.16371.09002.09502.74123.32413.40753.87695.68255.35315.0250
C32.56871.34661.52012.54033.92002.73743.27783.26722.09481.09092.16932.15212.77002.74344.72774.21684.2369
C43.18282.56881.52011.55662.57472.77883.95023.91153.52782.20971.09641.09912.16962.17743.52932.82262.8188
C54.10943.53912.54031.55661.54953.67075.06894.51594.40062.93522.17512.17521.09671.09752.19502.18632.1860
C65.22864.90763.92002.57471.54954.53596.12875.65825.85124.33842.79962.77932.18372.18151.09561.09591.0960
H71.09352.17702.73742.77883.67074.53591.77561.77463.11383.81622.07363.63243.38314.51015.35745.12594.1665
H81.09702.16463.27783.95025.06896.12871.77561.77142.55844.15513.48874.63694.82335.70386.97846.61055.8672
H91.09712.16373.26723.91154.51595.65821.77461.77142.57044.14263.56504.88203.91865.13316.29396.38155.4503
H102.21181.09002.09483.52784.40065.85123.11382.55842.57042.37613.81564.18194.23084.54296.56556.27426.0539
H113.52902.09501.09092.20972.93524.33843.81624.15514.14262.37613.10082.48733.30082.71165.05054.49044.8730
H122.79432.74122.16931.09642.17512.79962.07363.48873.56503.81563.10081.76882.50033.07503.80203.15562.5985
H134.03853.32412.15211.09912.17522.77933.63244.63694.88204.18192.48731.76883.07012.52503.78872.57973.1199
H143.76693.40752.77002.16961.09672.18373.38314.82333.91864.23083.30082.50033.07011.76832.52923.09062.5316
H154.75583.87692.74342.17741.09752.18154.51015.70385.13314.54292.71163.07502.52501.76832.52582.52993.0890
H166.01135.68254.72773.52932.19501.09565.35746.97846.29396.56555.05053.80203.78872.52922.52581.77811.7778
H175.80645.35314.21682.82262.18631.09595.12596.61056.38156.27424.49043.15562.57973.09062.52991.77811.7768
H185.02755.02504.23692.81882.18601.09604.16655.86725.45036.05394.87302.59853.11992.53163.08901.77781.7768

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 127.062 C1 C2 H10 114.746
C2 C1 H7 111.662 C2 C1 H8 110.457
C2 C1 H9 110.385 C2 C3 C4 127.191
C2 C3 H11 118.140 C3 C2 H10 118.191
C3 C4 C5 111.302 C3 C4 H12 110.970
C3 C4 H13 109.451 C4 C3 H11 114.620
C4 C5 C6 111.971 C4 C5 H14 108.461
C4 C5 H15 109.022 C5 C4 H12 108.907
C5 C4 H13 108.758 C5 C6 H16 111.000
C5 C6 H17 110.295 C5 C6 H18 110.268
C6 C5 H14 110.046 C6 C5 H15 109.823
H7 C1 H8 108.316 H7 C1 H9 108.217
H8 C1 H9 107.678 H12 C4 H13 107.346
H14 C5 H16 94.483 H16 C6 H17 108.456
H16 C6 H18 108.428 H17 C6 H18 108.317
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability