return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-156.110324
Energy at 298.15K-156.116699
HF Energy-155.533949
Nuclear repulsion energy109.446563
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=FULL/6-311G*
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' 3313 3138 9.72      
2 A' 3206 3036 21.24      
3 A' 3202 3033 16.14      
4 A' 3187 3019 6.33      
5 A' 3170 3002 11.18      
6 A' 3063 2901 29.48      
7 A' 1558 1476 11.27      
8 A' 1536 1454 1.35      
9 A' 1510 1430 17.71      
10 A' 1453 1376 2.61      
11 A' 1378 1305 0.22      
12 A' 1331 1260 2.06      
13 A' 1183 1120 0.19      
14 A' 1144 1084 0.55      
15 A' 1018 964 5.72      
16 A' 905 858 4.77      
17 A' 521 493 0.66      
18 A' 295 279 0.19      
19 A" 3128 2963 18.33      
20 A" 1516 1435 9.51      
21 A" 1060 1004 4.56      
22 A" 1028 974 32.47      
23 A" 787 745 56.49      
24 A" 751 711 6.13      
25 A" 562 532 7.63      
26 A" 227 215 2.50      
27 A" 144 137 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 21087.2 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 19971.6 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=FULL/6-311G*
ABC
1.27478 0.13447 0.12443

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.359 -1.404 0.000
C2 0.149 -0.742 0.000
C3 0.000 0.626 0.000
C4 -1.317 1.331 0.000
H5 2.295 -0.857 0.000
H6 1.413 -2.484 0.000
H7 -0.758 -1.345 0.000
H8 0.897 1.242 0.000
H9 -2.147 0.621 0.000
H10 -1.423 1.977 0.878
H11 -1.423 1.977 -0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.37992.44353.82681.08381.08162.11872.68644.04914.46564.4656
C21.37991.37622.53872.14962.15291.08962.12062.66973.26063.2606
C32.44351.37621.49382.73313.41662.11241.08832.14682.14922.1492
C43.82682.53871.49384.22364.69152.73382.21621.09171.09521.0952
H51.08382.14962.73314.22361.85073.09252.52264.68174.75694.7569
H61.08162.15293.41664.69151.85072.45223.76224.72415.35865.3586
H72.11871.08962.11242.73383.09252.45223.07192.40713.49963.4996
H82.68642.12061.08832.21622.52263.76223.07193.10672.58722.5872
H94.04912.66972.14681.09174.68174.72412.40713.10671.76981.7698
H104.46563.26062.14921.09524.75695.35863.49962.58721.76981.7565
H114.46563.26062.14921.09524.75695.35863.49962.58721.76981.7565

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 124.886 C1 C2 H7 117.694
C2 C1 H5 121.032 C2 C1 H6 121.522
C2 C3 C4 124.345 C2 C3 H8 118.266
C3 C2 H7 117.421 C3 C4 H9 111.316
C3 C4 H10 111.297 C3 C4 H11 111.297
C4 C3 H8 117.390 H5 C1 H6 117.446
H9 C4 H10 108.053 H9 C4 H11 108.053
H10 C4 H11 106.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability