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

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-26.243709
Energy at 298.15K-26.249918
HF Energy-25.929444
Nuclear repulsion energy59.684814
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-121G
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' 3228 3151 24.55      
2 A' 3116 3041 52.55      
3 A' 3112 3038 6.80      
4 A' 3102 3027 14.23      
5 A' 3066 2992 24.62      
6 A' 2952 2881 47.93      
7 A' 1539 1502 8.88      
8 A' 1529 1493 2.58      
9 A' 1486 1451 10.49      
10 A' 1462 1427 3.09      
11 A' 1367 1334 0.16      
12 A' 1302 1271 1.34      
13 A' 1173 1144 0.15      
14 A' 1128 1101 0.36      
15 A' 1014 989 4.74      
16 A' 881 860 3.23      
17 A' 505 493 0.43      
18 A' 286 279 0.11      
19 A" 3034 2961 36.56      
20 A" 1493 1457 7.96      
21 A" 1053 1027 0.00      
22 A" 969 945 49.42      
23 A" 707 690 11.51      
24 A" 658 643 55.47      
25 A" 524 511 5.69      
26 A" 214 209 2.37      
27 A" 124 121 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 20510.9 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 20018.6 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/CEP-121G
ABC
1.23264 0.12891 0.11934

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.397 -1.429 0.000
C2 0.155 -0.756 0.000
C3 0.000 0.645 0.000
C4 -1.354 1.352 0.000
H5 2.339 -0.876 0.000
H6 1.454 -2.519 0.000
H7 -0.757 -1.366 0.000
H8 0.898 1.275 0.000
H9 -2.177 0.618 0.000
H10 -1.471 1.999 0.890
H11 -1.471 1.999 -0.890

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.41222.50053.91221.09341.09062.15442.75024.11894.55664.5566
C21.41221.40942.59302.18762.18911.09732.16282.70723.31993.3199
C32.50051.40941.52802.79033.48132.14871.09722.17752.18782.1878
C43.91222.59301.52804.31394.78202.78342.25361.10301.10561.1056
H51.09342.18762.79034.31391.86633.13492.58954.75754.85504.8550
H61.09062.18913.48134.78201.86632.49283.83424.79815.45405.4540
H72.15441.09732.14872.78343.13492.49283.11702.44033.55273.5527
H82.75022.16281.09722.25362.58953.83423.11703.14482.63152.6315
H94.11892.70722.17751.10304.75754.79812.44033.14481.78781.7878
H104.55663.31992.18781.10564.85505.45403.55272.63151.78781.7790
H114.55663.31992.18781.10564.85505.45403.55272.63151.78781.7790

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 124.799 C1 C2 H7 117.741
C2 C1 H5 121.112 C2 C1 H6 121.472
C2 C3 C4 123.907 C2 C3 H8 118.749
C3 C2 H7 117.460 C3 C4 H9 110.677
C3 C4 H10 111.341 C3 C4 H11 111.341
C4 C3 H8 117.343 H5 C1 H6 117.416
H9 C4 H10 108.093 H9 C4 H11 108.093
H10 C4 H11 107.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability