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

using model chemistry: HF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 2A1
Energy calculated at HF/cc-pVQZ
 hartrees
Energy at 0K-39.580412
Energy at 298.15K-39.581520
HF Energy-39.580412
Nuclear repulsion energy9.754441
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/cc-pVQZ
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' 3231 2935 0.00 150.21 0.08 0.16
2 A2" 411 373 77.56 0.00 0.00 0.00
3 E' 3407 3095 8.35 30.63 0.75 0.86
3 E' 3407 3095 8.35 30.63 0.75 0.86
4 E' 1518 1379 1.66 0.82 0.75 0.86
4 E' 1518 1379 1.66 0.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6745.5 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 6127.6 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 HF/cc-pVQZ
ABC
9.73146 9.73146 4.86573

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVQZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
H2 0.000 1.070 0.000
H3 0.927 -0.535 0.000
H4 -0.927 -0.535 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4
C11.07051.07051.0705
H21.07051.85411.8541
H31.07051.85411.8541
H41.07051.85411.8541

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 HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.269      
2 H 0.090      
3 H 0.090      
4 H 0.090      


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        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.189 0.000 0.000
y 0.000 -7.189 0.000
z 0.000 0.000 -8.954
Traceless
 xyz
x 0.882 0.000 0.000
y 0.000 0.882 0.000
z 0.000 0.000 -1.765
Polar
3z2-r2-3.530
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.065 0.000 0.000
y 0.000 2.065 0.000
z 0.000 0.000 1.753


<r2> (average value of r2) Å2
<r2> 8.295
(<r2>)1/2 2.880