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: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-154.827440
Energy at 298.15K-154.833749
HF Energy-154.827440
Nuclear repulsion energy109.281778
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 LSDA/3-21G*
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' 3194 3136 5.41      
2 A' 3091 3035 6.33      
3 A' 3085 3030 17.72      
4 A' 3058 3003 1.71      
5 A' 3051 2996 7.13      
6 A' 2943 2890 14.92      
7 A' 1538 1511 1.31      
8 A' 1499 1472 11.37      
9 A' 1468 1441 19.58      
10 A' 1394 1369 14.36      
11 A' 1338 1314 0.67      
12 A' 1285 1262 2.27      
13 A' 1253 1230 1.13      
14 A' 1151 1130 0.22      
15 A' 997 979 15.19      
16 A' 890 874 7.52      
17 A' 515 506 0.71      
18 A' 286 281 0.21      
19 A" 2988 2934 9.95      
20 A" 1469 1443 13.47      
21 A" 1024 1005 11.02      
22 A" 972 955 21.40      
23 A" 794 780 79.54      
24 A" 731 718 0.09      
25 A" 534 524 8.00      
26 A" 219 216 2.03      
27 A" 157 154 2.12      

Unscaled Zero Point Vibrational Energy (zpe) 20461.0 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 20092.7 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 LSDA/3-21G*
ABC
1.25534 0.13503 0.12477

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.355 -1.405 0.000
C2 0.149 -0.740 0.000
C3 0.000 0.635 0.000
C4 -1.311 1.322 0.000
H5 2.300 -0.849 0.000
H6 1.411 -2.496 0.000
H7 -0.775 -1.338 0.000
H8 0.905 1.259 0.000
H9 -2.141 0.593 0.000
H10 -1.430 1.978 0.887
H11 -1.430 1.978 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.37732.44933.81371.09571.09262.13132.70204.02704.47084.4708
C21.37731.38292.52632.15312.16261.10122.13692.65003.26583.2658
C32.44931.38291.48002.73743.43452.11991.09942.14172.15272.1527
C43.81372.52631.48004.21344.68882.71312.21721.10471.10961.1096
H51.09572.15312.73744.21341.87123.11322.52824.66934.76364.7636
H61.09262.16263.43454.68881.87122.47373.78934.70735.37345.3734
H72.13131.10122.11992.71313.11322.47373.09332.36533.49433.4943
H82.70202.13691.09942.21722.52823.78933.09333.11852.59922.5992
H94.02702.65002.14171.10474.66934.70732.36533.11851.79191.7919
H104.47083.26582.15271.10964.76365.37343.49432.59921.79191.7738
H114.47083.26582.15271.10964.76365.37343.49432.59921.79191.7738

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 125.091 C1 C2 H7 118.194
C2 C1 H5 120.650 C2 C1 H6 121.806
C2 C3 C4 123.833 C2 C3 H8 118.384
C3 C2 H7 116.715 C3 C4 H9 111.082
C3 C4 H10 111.661 C3 C4 H11 111.661
C4 C3 H8 117.783 H5 C1 H6 117.544
H9 C4 H10 108.043 H9 C4 H11 108.043
H10 C4 H11 106.123
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.419      
2 C -0.207      
3 C -0.170      
4 C -0.691      
5 H 0.199      
6 H 0.204      
7 H 0.197      
8 H 0.198      
9 H 0.222      
10 H 0.233      
11 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.410 0.460 0.000 0.616
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.867 -0.092 0.000
y -0.092 -23.411 0.000
z 0.000 0.000 -28.441
Traceless
 xyz
x 2.059 -0.092 0.000
y -0.092 2.743 0.000
z 0.000 0.000 -4.802
Polar
3z2-r2-9.604
x2-y2-0.456
xy-0.092
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.456 -2.249 0.000
y -2.249 8.540 0.000
z 0.000 0.000 2.898


<r2> (average value of r2) Å2
<r2> 102.712
(<r2>)1/2 10.135