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All results from a given calculation for CH3CHCHCH2 (methylallyl 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 CS 2A"
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-156.117555
Energy at 298.15K-156.124006
HF Energy-155.525839
Nuclear repulsion energy109.700071
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' 3341 3155 4.52      
2 A' 3233 3054 15.19      
3 A' 3230 3050 6.70      
4 A' 3215 3036 4.48      
5 A' 3198 3020 7.28      
6 A' 3086 2915 21.63      
7 A' 1550 1464 8.28      
8 A' 1523 1439 0.89      
9 A' 1496 1413 15.89      
10 A' 1432 1353 1.65      
11 A' 1367 1291 0.15      
12 A' 1325 1251 2.35      
13 A' 1180 1114 0.45      
14 A' 1145 1081 0.49      
15 A' 1006 950 4.75      
16 A' 901 851 5.08      
17 A' 514 486 0.75      
18 A' 289 273 0.20      
19 A" 3155 2980 11.52      
20 A" 1507 1423 5.61      
21 A" 1079 1019 17.30      
22 A" 1044 986 2.74      
23 A" 832 786 45.69      
24 A" 789 745 0.49      
25 A" 582 549 4.46      
26 A" 235 222 1.39      
27 A" 165 156 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 21207.6 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 20030.6 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 MP2/6-31G(2df,p)
ABC
1.28027 0.13513 0.12504

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.359 -1.397 0.000
C2 0.151 -0.740 0.000
C3 0.000 0.624 0.000
C4 -1.318 1.325 0.000
H5 2.289 -0.847 0.000
H6 1.415 -2.476 0.000
H7 -0.754 -1.342 0.000
H8 0.894 1.240 0.000
H9 -2.144 0.613 0.000
H10 -1.425 1.971 0.877
H11 -1.425 1.971 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.37532.43553.81751.08161.07962.11352.67784.03844.45664.4566
C21.37531.37202.53362.14152.14771.08682.11452.66363.25543.2554
C32.43551.37201.49252.72123.40742.10541.08552.14372.14782.1478
C43.81752.53361.49254.21044.68122.72562.21321.09051.09401.0940
H51.08162.14152.72124.21041.84853.08372.51014.66744.74394.7439
H61.07962.14773.40744.68121.84852.44813.75164.71255.34845.3484
H72.11351.08682.10542.72563.08372.44813.06282.39843.49143.4914
H82.67782.11451.08552.21322.51013.75163.06283.10162.58482.5848
H94.03842.66362.14371.09054.66744.71252.39843.10161.76841.7684
H104.45663.25542.14781.09404.74395.34843.49142.58481.76841.7534
H114.45663.25542.14781.09404.74395.34843.49142.58481.76841.7534

picture of methylallyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.871 C1 C2 H7 117.802
C2 C1 H5 120.826 C2 C1 H6 121.589
C2 C3 C4 124.320 C2 C3 H8 118.253
C3 C2 H7 117.328 C3 C4 H9 111.235
C3 C4 H10 111.346 C3 C4 H11 111.346
C4 C3 H8 117.426 H5 C1 H6 117.585
H9 C4 H10 108.098 H9 C4 H11 108.098
H10 C4 H11 106.516
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability