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

using model chemistry: LSDA/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-189.270815
Energy at 298.15K-189.274408
HF Energy-189.270815
Nuclear repulsion energy75.280065
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/6-31+G**
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' 3111 3064 3.12      
2 A' 2982 2937 6.40      
3 A' 1410 1388 14.04      
4 A' 1372 1351 3.17      
5 A' 1219 1201 5.69      
6 A' 1135 1118 1.55      
7 A' 933 919 4.17      
8 A' 492 485 6.87      
9 A" 3083 3037 3.10      
10 A" 1396 1375 16.12      
11 A" 1071 1055 0.00      
12 A" 131 129 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 9166.6 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 9029.1 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/6-31+G**
ABC
1.77197 0.38332 0.33584

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.992 -0.466 0.000
O2 0.000 0.560 0.000
O3 -1.207 0.054 0.000
H4 1.963 0.052 0.000
H5 0.869 -1.085 0.904
H6 0.869 -1.085 -0.904

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.42742.26001.10051.10271.1027
O21.42741.30902.02802.06872.0687
O32.26001.30903.17042.53482.5348
H41.10052.02803.17041.81861.8186
H51.10272.06872.53481.81861.8086
H61.10272.06872.53481.81861.8086

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 111.280 O2 C1 H4 105.963
O2 C1 H5 109.018 O2 C1 H6 109.018
H4 C1 H5 111.263 H4 C1 H6 111.263
H5 C1 H6 110.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.392      
2 O 0.010      
3 O -0.241      
4 H 0.200      
5 H 0.211      
6 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.849 -1.161 0.000 3.076
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.235 -0.421 0.000
y -0.421 -18.408 0.000
z 0.000 0.000 -17.239
Traceless
 xyz
x -0.412 -0.421 0.000
y -0.421 -0.671 0.000
z 0.000 0.000 1.082
Polar
3z2-r22.165
x2-y20.173
xy-0.421
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.839 -0.101 0.000
y -0.101 3.157 0.000
z 0.000 0.000 2.811


<r2> (average value of r2) Å2
<r2> 41.976
(<r2>)1/2 6.479