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 CH3O (Methoxy radical)

using model chemistry: HSEh1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A'
Energy calculated at HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-114.974153
Energy at 298.15K-114.976985
HF Energy-114.974153
Nuclear repulsion energy34.535775
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 HSEh1PBE/cc-pVTZ
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 3031 2913 36.51      
2 A 2988 2871 39.23      
3 A 2918 2805 0.09      
4 A 1512 1453 4.83      
5 A 1361 1308 21.71      
6 A 1358 1305 16.26      
7 A 1138 1094 9.12      
8 A 963 926 0.44      
9 A 670 644 83.50      

Unscaled Zero Point Vibrational Energy (zpe) 7969.3 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 7659.2 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 HSEh1PBE/cc-pVTZ
ABC
5.28137 0.94382 0.93694

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.569 0.000 -0.014
O2 0.787 0.000 -0.007
H3 -0.868 -0.001 1.051
H4 -1.006 0.908 -0.452
H5 -1.006 -0.907 -0.454

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5
C11.35611.10701.09911.0991
O21.35611.96512.05882.0588
H31.10701.96511.76261.7625
H41.09912.05881.76261.8158
H51.09912.05881.76251.8158

picture of Methoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 H3 105.405 O2 C1 H4 113.570
O2 C1 H5 113.564 H3 C1 H4 106.068
H3 C1 H5 106.056 H4 C1 H5 111.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.032      
2 O -0.210      
3 H 0.111      
4 H 0.065      
5 H 0.065      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.960 -0.000 0.213 1.971
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.375 0.001 -0.245
y 0.001 -12.652 -0.001
z -0.245 -0.001 -11.575
Traceless
 xyz
x -1.261 0.001 -0.245
y 0.001 -0.177 -0.001
z -0.245 -0.001 1.438
Polar
3z2-r22.876
x2-y2-0.722
xy0.001
xz-0.245
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.007 0.000 -0.017
y 0.000 2.682 0.001
z -0.017 0.001 2.339


<r2> (average value of r2) Å2
<r2> 20.672
(<r2>)1/2 4.547