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: QCISD/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 QCISD/6-311G*
 hartrees
Energy at 0K-156.096058
Energy at 298.15K-156.102288
HF Energy-155.533815
Nuclear repulsion energy108.648012
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/6-311G*
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' 3247 3109 15.55      
2 A' 3151 3017 26.21      
3 A' 3149 3015 21.12      
4 A' 3138 3004 5.81      
5 A' 3109 2977 16.10      
6 A' 3018 2890 31.67      
7 A' 1542 1476 5.84      
8 A' 1529 1464 3.56      
9 A' 1502 1438 12.87      
10 A' 1450 1388 2.09      
11 A' 1362 1304 0.04      
12 A' 1297 1242 1.59      
13 A' 1190 1140 0.27      
14 A' 1155 1105 0.15      
15 A' 1006 963 3.95      
16 A' 892 854 3.16      
17 A' 509 487 0.50      
18 A' 290 277 0.13      
19 A" 3070 2939 26.01      
20 A" 1506 1442 7.71      
21 A" 1043 999 0.38      
22 A" 967 926 34.48      
23 A" 735 704 52.10      
24 A" 704 674 2.75      
25 A" 533 511 6.75      
26 A" 213 203 2.23      
27 A" 126 121 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 20715.9 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 19833.4 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/6-311G*
ABC
1.25676 0.13234 0.12246

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.369 -1.418 0.000
C2 0.147 -0.750 0.000
C3 0.000 0.635 0.000
C4 -1.324 1.344 0.000
H5 2.309 -0.872 0.000
H6 1.421 -2.503 0.000
H7 -0.763 -1.354 0.000
H8 0.901 1.252 0.000
H9 -2.157 0.632 0.000
H10 -1.431 1.991 0.882
H11 -1.431 1.991 -0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.39262.46793.85751.08811.08602.13292.71154.07824.49864.4986
C21.39261.39282.55882.16572.16711.09292.13952.68643.28313.2831
C32.46791.39281.50172.75753.44502.13101.09212.15682.15932.1593
C43.85752.55881.50174.25554.72582.75582.22671.09591.09911.0991
H51.08812.16572.75754.25551.85793.11042.54874.71254.79174.7917
H61.08602.16713.44504.72581.85792.46783.79154.75675.39495.3949
H72.13291.09292.13102.75583.11042.46783.09272.42613.52333.5233
H82.71152.13951.09212.22672.54873.79153.09273.12012.60002.6000
H94.07822.68642.15681.09594.71254.75672.42613.12011.77561.7756
H104.49863.28312.15931.09914.79175.39493.52332.60001.77561.7641
H114.49863.28312.15931.09914.79175.39493.52332.60001.77561.7641

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 124.756 C1 C2 H7 117.722
C2 C1 H5 121.141 C2 C1 H6 121.441
C2 C3 C4 124.220 C2 C3 H8 118.354
C3 C2 H7 117.522 C3 C4 H9 111.309
C3 C4 H10 111.314 C3 C4 H11 111.314
C4 C3 H8 117.426 H5 C1 H6 117.419
H9 C4 H10 107.982 H9 C4 H11 107.982
H10 C4 H11 106.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability