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All results from a given calculation for CH3OO (methylperoxy radical)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-186.783301
Energy at 298.15K-186.787000
HF Energy-186.783301
Nuclear repulsion energy73.790772
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/STO-3G
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' 3736 3051 0.32      
2 A' 3536 2887 0.94      
3 A' 1800 1470 4.76      
4 A' 1727 1410 4.06      
5 A' 1444 1179 17.76      
6 A' 1370 1119 0.32      
7 A' 1168 954 1.35      
8 A' 534 436 1.24      
9 A" 3714 3033 1.85      
10 A" 1783 1456 3.52      
11 A" 1287 1051 3.70      
12 A" 174 142 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 11136.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 9092.9 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/STO-3G
ABC
1.62857 0.37557 0.32395

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.003 -0.458 0.000
O2 0.000 0.596 0.000
O3 -1.229 0.013 0.000
H4 1.975 0.039 0.000
H5 0.919 -1.085 0.891
H6 0.919 -1.085 -0.891

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.45492.28111.09081.09311.0931
O21.45491.36002.05192.11312.1131
O32.28111.36003.20362.57142.5714
H41.09082.05193.20361.78101.7810
H51.09312.11312.57141.78101.7816
H61.09312.11312.57141.78101.7816

picture of methylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 108.215 O2 C1 H4 106.541
O2 C1 H5 111.266 O2 C1 H6 111.266
H4 C1 H5 109.273 H4 C1 H6 109.273
H5 C1 H6 109.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.074      
2 O -0.141      
3 O -0.015      
4 H 0.083      
5 H 0.074      
6 H 0.074      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.167 -1.086 0.000 1.594
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.656 -0.305 0.000
y -0.305 -16.611 0.000
z 0.000 0.000 -15.307
Traceless
 xyz
x 0.303 -0.305 0.000
y -0.305 -1.129 0.000
z 0.000 0.000 0.826
Polar
3z2-r21.653
x2-y20.954
xy-0.305
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.152 0.002 0.000
y 0.002 1.084 0.000
z 0.000 0.000 1.024


<r2> (average value of r2) Å2
<r2> 41.656
(<r2>)1/2 6.454