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All results from a given calculation for CH3CHCHCH2 (methylallyl radical)

using model chemistry: MP2/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-26.200054
Energy at 298.15K-26.206325
HF Energy-25.918598
Nuclear repulsion energy59.217925
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/CEP-31G
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' 3276 3166 39.67      
2 A' 3169 3063 8.06      
3 A' 3165 3058 53.84      
4 A' 3154 3048 32.18      
5 A' 3127 3022 29.99      
6 A' 3016 2915 51.84      
7 A' 1541 1489 9.83      
8 A' 1533 1481 1.13      
9 A' 1499 1449 11.00      
10 A' 1463 1413 2.75      
11 A' 1369 1323 0.01      
12 A' 1311 1267 1.41      
13 A' 1196 1156 0.34      
14 A' 1149 1110 0.03      
15 A' 1008 974 6.46      
16 A' 887 857 3.31      
17 A' 500 484 0.45      
18 A' 284 274 0.07      
19 A" 3098 2993 49.45      
20 A" 1499 1448 9.98      
21 A" 1065 1029 7.57      
22 A" 1035 1000 50.39      
23 A" 769 743 39.78      
24 A" 696 672 55.53      
25 A" 534 516 14.30      
26 A" 221 213 2.86      
27 A" 144 139 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 20852.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 20149.8 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/CEP-31G
ABC
1.20929 0.12696 0.11749

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.409 -1.440 0.000
C2 0.151 -0.764 0.000
C3 0.000 0.651 0.000
C4 -1.363 1.363 0.000
H5 2.354 -0.878 0.000
H6 1.470 -2.538 0.000
H7 -0.766 -1.377 0.000
H8 0.908 1.279 0.000
H9 -2.192 0.625 0.000
H10 -1.479 2.015 0.896
H11 -1.479 2.015 -0.896

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.42792.52193.94271.10001.09912.17612.76504.15194.59134.5913
C21.42791.42362.61152.20582.20991.10342.17862.72483.34403.3440
C32.52191.42361.53792.80723.51142.16831.10362.19262.20192.2019
C43.94272.61151.53794.34064.82122.80472.27251.11011.11351.1135
H51.10002.20582.80724.34061.88103.16012.59664.78874.88484.8848
H61.09912.20993.51144.82121.88102.51923.85774.83925.49755.4975
H72.17611.10342.16832.80473.16012.51923.13952.45863.57983.5798
H82.76502.17861.10362.27252.59663.85773.13953.16842.65332.6533
H94.15192.72482.19261.11014.78874.83922.45863.16841.80051.8005
H104.59133.34402.20191.11354.88485.49753.57982.65331.80051.7912
H114.59133.34402.20191.11354.88485.49753.57982.65331.80051.7912

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 124.364 C1 C2 H7 117.993
C2 C1 H5 120.973 C2 C1 H6 121.431
C2 C3 C4 123.684 C2 C3 H8 118.553
C3 C2 H7 117.643 C3 C4 H9 110.759
C3 C4 H10 111.287 C3 C4 H11 111.287
C4 C3 H8 117.763 H5 C1 H6 117.597
H9 C4 H10 108.132 H9 C4 H11 108.132
H10 C4 H11 107.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability