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

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at G3
 hartrees
Energy at 0K-156.419919
Energy at 298.15K-156.413406
HF Energy-155.506744
Nuclear repulsion energy109.057460
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 HF/6-31G*
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' 3420 3222 22.24      
2 A' 3330 3138 22.24      
3 A' 3328 3136 38.04      
4 A' 3317 3126 6.86      
5 A' 3265 3077 27.00      
6 A' 3184 3000 43.04      
7 A' 1649 1554 2.94      
8 A' 1643 1548 3.08      
9 A' 1611 1517 5.07      
10 A' 1566 1476 1.57      
11 A' 1455 1371 1.01      
12 A' 1352 1274 1.20      
13 A' 1256 1184 0.21      
14 A' 1204 1135 0.19      
15 A' 1072 1010 1.52      
16 A' 931 877 1.93      
17 A' 530 499 0.44      
18 A' 305 288 0.11      
19 A" 3227 3041 42.26      
20 A" 1624 1530 4.15      
21 A" 1120 1055 0.09      
22 A" 1023 964 25.61      
23 A" 781 736 50.73      
24 A" 747 703 0.04      
25 A" 557 525 4.42      
26 A" 220 207 1.50      
27 A" 137 129 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 21926.9 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 20659.5 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/6-31G*
ABC
1.27511 0.13472 0.12466

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.358 -1.402 0.000
C2 0.148 -0.742 0.000
C3 0.000 0.625 0.000
C4 -1.315 1.331 0.000
H5 2.294 -0.855 0.000
H6 1.416 -2.483 0.000
H7 -0.760 -1.345 0.000
H8 0.897 1.242 0.000
H9 -2.144 0.619 0.000
H10 -1.422 1.976 0.879
H11 -1.422 1.976 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.37832.44003.82241.08421.08212.11812.68404.04334.46264.4626
C21.37831.37512.53672.14892.15381.08972.12052.66563.25993.2599
C32.44001.37511.49222.73003.41542.11171.08832.14432.14972.1497
C43.82242.53671.49224.21914.69042.73272.21351.09291.09621.0962
H51.08422.14892.73004.21911.84913.09252.51984.67644.75384.7538
H61.08212.15383.41544.69041.84912.45523.76074.72185.35835.3583
H72.11811.08972.11172.73273.09252.45523.07192.40293.49913.4991
H82.68402.12051.08832.21352.51983.76073.07193.10422.58662.5866
H94.04332.66562.14431.09294.67644.72182.40293.10421.77121.7712
H104.46263.25992.14971.09624.75385.35833.49912.58661.77121.7586
H114.46263.25992.14971.09624.75385.35833.49912.58661.77121.7586

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 124.722 C1 C2 H7 117.628
C2 C1 H5 121.274 C2 C1 H6 121.356
C2 C3 C4 124.329 C2 C3 H8 118.480
C3 C2 H7 117.650 C3 C4 H9 111.472
C3 C4 H10 111.289 C3 C4 H11 111.289
C4 C3 H8 117.191 H5 C1 H6 117.370
H9 C4 H10 107.846 H9 C4 H11 107.846
H10 C4 H11 106.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability