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All results from a given calculation for CH3 (Methyl radical)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 2A1
Energy calculated at G3B3
 hartrees
Energy at 0K-39.793618
Energy at 298.15K-39.789548
HF Energy-39.838292
Nuclear repulsion energy9.643287
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 B3LYP/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 A1' 3143 3019 0.00 113.13 0.11 0.20
2 A2" 453 435 89.68 0.00 0.75 0.86
3 E' 3318 3186 7.51 33.35 0.75 0.86
3 E' 3318 3186 7.51 33.35 0.75 0.86
4 E' 1431 1374 2.31 3.87 0.75 0.86
4 E' 1431 1374 2.31 3.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6547.1 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 6287.2 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 B3LYP/6-31G*
ABC
9.51188 9.51188 4.75594

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
H2 0.000 1.083 0.000
H3 0.938 -0.541 0.000
H4 -0.938 -0.541 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4
C11.08271.08271.0827
H21.08271.87541.8754
H31.08271.87541.8754
H41.08271.87541.8754

picture of Methyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 120.000 H2 C1 H4 120.000
H3 C1 H4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.488      
2 H 0.163      
3 H 0.163      
4 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG 0.000 -0.001 0.000 0.001
AIM 0.000 0.000 0.000 0.000
ESP -0.000 -0.002 0.000 0.002


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 8.233
(<r2>)1/2 2.869