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

using model chemistry: QCISD/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 QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-156.177445
Energy at 298.15K-156.183774
HF Energy-155.526130
Nuclear repulsion energy109.050322
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/6-31G(2df,p)
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' 3297 3124 8.38      
2 A' 3200 3031 20.66      
3 A' 3197 3029 8.99      
4 A' 3186 3018 4.84      
5 A' 3158 2992 11.55      
6 A' 3063 2902 24.21      
7 A' 1542 1461 5.64      
8 A' 1530 1449 1.11      
9 A' 1502 1423 11.12      
10 A' 1443 1367 1.25      
11 A' 1360 1289 0.54      
12 A' 1301 1232 1.77      
13 A' 1202 1139 0.28      
14 A' 1156 1096 0.04      
15 A' 1002 950 3.26      
16 A' 892 846 3.48      
17 A' 506 479 0.58      
18 A' 286 271 0.15      
19 A" 3118 2954 18.18      
20 A" 1509 1430 4.56      
21 A" 1044 989 1.56      
22 A" 1012 958 18.28      
23 A" 784 743 41.17      
24 A" 744 705 0.06      
25 A" 553 524 4.19      
26 A" 220 208 1.30      
27 A" 146 139 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 20976.1 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 19872.8 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 QCISD/6-31G(2df,p)
ABC
1.26689 0.13329 0.12334

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.366 -1.411 0.000
C2 0.149 -0.747 0.000
C3 0.000 0.632 0.000
C4 -1.322 1.337 0.000
H5 2.301 -0.862 0.000
H6 1.420 -2.491 0.000
H7 -0.757 -1.349 0.000
H8 0.896 1.248 0.000
H9 -2.151 0.625 0.000
H10 -1.430 1.982 0.879
H11 -1.430 1.982 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.38652.45753.84411.08381.08172.12412.70034.06374.48384.4838
C21.38651.38682.55062.15482.15851.08792.13002.67793.27313.2731
C32.45751.38681.49852.74333.43092.12061.08712.15112.15432.1543
C43.84412.55061.49854.23824.70902.74432.21991.09241.09561.0956
H51.08382.15482.74334.23821.85173.09642.53534.69354.77314.7731
H61.08172.15853.43094.70901.85172.45893.77594.73955.37675.3767
H72.12411.08792.12062.74433.09642.45893.07832.41613.51013.5101
H82.70032.13001.08712.21992.53533.77593.07833.10982.59242.5924
H94.06372.67792.15111.09244.69354.73952.41613.10981.77041.7704
H104.48383.27312.15431.09564.77315.37673.51012.59241.77041.7573
H114.48383.27312.15431.09564.77315.37673.51012.59241.77041.7573

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 124.783 C1 C2 H7 117.783
C2 C1 H5 120.968 C2 C1 H6 121.493
C2 C3 C4 124.215 C2 C3 H8 118.361
C3 C2 H7 117.434 C3 C4 H9 111.281
C3 C4 H10 111.338 C3 C4 H11 111.338
C4 C3 H8 117.424 H5 C1 H6 117.539
H9 C4 H10 108.022 H9 C4 H11 108.022
H10 C4 H11 106.638
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability