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All results from a given calculation for C5H11 (2-Methylbut-2-yl radical)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-196.531944
Energy at 298.15K-196.542825
HF Energy-195.733078
Nuclear repulsion energy182.507211
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 MP2/6-31G(2df,p)
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 3206 3028 18.81      
2 A 3200 3022 16.13      
3 A 3195 3017 24.83      
4 A 3187 3011 13.26      
5 A 3146 2972 14.56      
6 A 3138 2963 17.70      
7 A 3120 2947 16.18      
8 A 3109 2936 16.51      
9 A 3043 2874 27.53      
10 A 3040 2872 21.44      
11 A 3020 2852 26.04      
12 A 1541 1456 1.23      
13 A 1532 1447 5.49      
14 A 1524 1439 2.84      
15 A 1518 1434 17.32      
16 A 1511 1427 1.39      
17 A 1504 1421 2.62      
18 A 1496 1413 0.09      
19 A 1434 1355 4.10      
20 A 1428 1349 2.26      
21 A 1419 1340 5.55      
22 A 1394 1317 0.18      
23 A 1331 1257 1.53      
24 A 1296 1224 5.04      
25 A 1267 1197 6.40      
26 A 1129 1066 0.73      
27 A 1093 1032 0.14      
28 A 1061 1002 5.04      
29 A 1004 948 1.01      
30 A 997 941 1.56      
31 A 961 908 0.46      
32 A 945 893 0.36      
33 A 775 732 1.43      
34 A 757 715 1.33      
35 A 452 427 0.71      
36 A 379 358 0.05      
37 A 307 290 1.80      
38 A 289 273 0.06      
39 A 216 204 0.91      
40 A 143 135 0.01      
41 A 133 125 0.05      
42 A 68 64 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 32652.5 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 30840.3 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 MP2/6-31G(2df,p)
ABC
0.24888 0.11561 0.08544

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.578 1.476 0.067
H2 0.285 1.998 -0.350
H3 -1.477 1.894 -0.389
H4 -0.614 1.730 1.138
C5 2.048 -0.044 -0.162
H6 2.180 0.906 0.356
H7 2.908 -0.672 0.077
H8 2.061 0.153 -1.236
C9 0.746 -0.734 0.248
H10 0.715 -1.739 -0.184
H11 0.756 -0.886 1.340
C12 -0.503 -0.002 -0.141
C13 -1.784 -0.771 -0.098
H14 -1.663 -1.776 -0.508
H15 -2.148 -0.890 0.933
H16 -2.576 -0.266 -0.655

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15 H16
C11.09111.09161.10043.04272.83074.09413.22682.58213.47462.99631.49502.55613.47702.96882.7476
H21.09111.76571.75862.70492.29863.76712.71032.83443.76593.37602.16033.46614.25093.98833.6611
H31.09161.76571.76124.02903.86085.10164.03333.49994.24783.96242.14582.69803.67663.15372.4373
H41.10041.75861.76123.45293.01594.39263.90842.95113.94292.95982.15573.02494.01273.04243.3232
C53.04272.70494.02903.45291.09041.09101.09141.52922.15612.15272.55133.90054.11004.41774.6552
H62.83072.29863.86083.01591.09041.75951.76482.18093.07142.49142.87584.32794.76574.72065.0013
H74.09413.76715.10164.39261.09101.75951.76622.16972.45282.50443.48284.69614.73915.13205.5473
H83.22682.71034.03333.90841.09141.76481.76622.17172.54893.06852.79234.11484.25724.84814.6920
C92.58212.83443.49992.95111.52922.18092.16972.17171.09471.10261.49852.55352.73182.97753.4738
H103.47463.76594.24783.94292.15613.07142.45282.54891.09471.74672.12182.68122.40073.18803.6363
H112.99633.37603.96242.95982.15272.49142.50443.06851.10261.74672.13512.92063.17142.93143.9323
C121.49502.16032.14582.15572.55132.87583.48282.79231.49852.12182.13511.49462.15142.15572.1518
C132.55613.46612.69803.02493.90054.32794.69614.11482.55352.68122.92061.49461.09221.10021.0922
H143.47704.25093.67664.01274.11004.76574.73914.25722.73182.40073.17142.15141.09221.76001.7710
H152.96883.98833.15373.04244.41774.72065.13204.84812.97753.18802.93142.15571.10021.76001.7596
H162.74763.66112.43733.32324.65525.00135.54734.69203.47383.63633.93232.15181.09221.77101.7596

picture of 2-Methylbut-2-yl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C12 C9 119.213 C1 C12 C13 117.521
H2 C1 H3 107.984 H2 C1 H4 106.727
H2 C1 C12 112.366 H3 C1 H4 106.918
H3 C1 C12 111.155 H4 C1 C12 111.414
C5 C9 H10 109.397 C5 C9 H11 108.679
C5 C9 C12 114.835 H6 C5 H7 107.525
H6 C5 H8 107.972 H6 C5 C9 111.620
H7 C5 H8 108.056 H7 C5 C9 110.692
H8 C5 C9 110.828 C9 C12 C13 117.104
H10 C9 H11 105.292 H10 C9 C12 108.814
H11 C9 C12 109.393 C12 C13 H14 111.605
C12 C13 H15 111.453 C12 C13 H16 111.639
H14 C13 H15 106.787 H14 C13 H16 108.342
H15 C13 H16 106.756
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability