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: PBEPBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-156.369974
Energy at 298.15K-156.376190
HF Energy-156.369974
Nuclear repulsion energy108.319183
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 PBEPBE/aug-cc-pVDZ
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' 3188 3169 10.90      
2 A' 3084 3065 26.63      
3 A' 3080 3061 14.96      
4 A' 3062 3043 6.45      
5 A' 3045 3026 11.76      
6 A' 2933 2915 34.08      
7 A' 1501 1491 2.02      
8 A' 1450 1441 7.92      
9 A' 1401 1393 15.78      
10 A' 1333 1324 2.32      
11 A' 1288 1280 1.96      
12 A' 1242 1234 2.67      
13 A' 1200 1193 1.50      
14 A' 1117 1111 1.03      
15 A' 949 943 4.72      
16 A' 861 856 7.74      
17 A' 493 489 0.76      
18 A' 279 278 0.22      
19 A" 2979 2961 16.60      
20 A" 1389 1380 6.59      
21 A" 974 968 6.70      
22 A" 950 945 19.74      
23 A" 778 774 49.33      
24 A" 713 709 0.02      
25 A" 524 521 6.44      
26 A" 213 212 1.72      
27 A" 148 147 0.96      

Unscaled Zero Point Vibrational Energy (zpe) 20086.5 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 19964.0 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 PBEPBE/aug-cc-pVDZ
ABC
1.25033 0.13177 0.12193

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.358 -1.436 0.000
C2 0.145 -0.750 0.000
C3 0.000 0.639 0.000
C4 -1.311 1.355 0.000
H5 2.314 -0.896 0.000
H6 1.395 -2.532 0.000
H7 -0.781 -1.352 0.000
H8 0.914 1.255 0.000
H9 -2.162 0.648 0.000
H10 -1.414 2.017 0.886
H11 -1.414 2.017 -0.886

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.39352.47963.86151.09871.09632.14082.72784.09034.51534.5153
C21.39351.39672.55952.17482.17621.10402.14852.69733.29723.2972
C32.47961.39671.49382.77713.46372.13831.10272.16172.16402.1640
C43.86152.55951.49384.26744.73572.75782.22741.10581.11081.1108
H51.09872.17482.77714.26741.87663.12932.56704.73514.81354.8135
H61.09632.17623.46374.73571.87662.47563.81754.77095.41875.4187
H72.14081.10402.13832.75783.12932.47563.10992.43003.53993.5399
H82.72782.14851.10272.22742.56703.81753.10993.13522.60472.6047
H94.09032.69732.16171.10584.73514.77092.43003.13521.79361.7936
H104.51533.29722.16401.11084.81355.41873.53992.60471.79361.7722
H114.51533.29722.16401.11084.81355.41873.53992.60471.79361.7722

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 125.414 C1 C2 H7 117.535
C2 C1 H5 121.083 C2 C1 H6 121.416
C2 C3 C4 124.586 C2 C3 H8 118.060
C3 C2 H7 117.051 C3 C4 H9 111.644
C3 C4 H10 111.524 C3 C4 H11 111.524
C4 C3 H8 117.354 H5 C1 H6 117.501
H9 C4 H10 108.029 H9 C4 H11 108.029
H10 C4 H11 105.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.448      
2 C 1.505      
3 C 0.806      
4 C 0.265      
5 H -0.536      
6 H -0.524      
7 H -0.792      
8 H -0.724      
9 H -0.281      
10 H -0.084      
11 H -0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.418 0.506 0.000 0.656
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.235 0.277 0.000
y 0.277 -24.799 0.000
z 0.000 0.000 -28.900
Traceless
 xyz
x 1.614 0.277 0.000
y 0.277 2.269 0.000
z 0.000 0.000 -3.883
Polar
3z2-r2-7.765
x2-y2-0.437
xy0.277
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.563 -2.686 0.000
y -2.686 10.727 0.000
z 0.000 0.000 6.175


<r2> (average value of r2) Å2
<r2> 105.305
(<r2>)1/2 10.262