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

using model chemistry: ROHF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at ROHF/6-31G**
 hartrees
Energy at 0K-189.201161
Energy at 298.15K-189.204962
Nuclear repulsion energy75.868556
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 ROHF/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 A' 3318 2836 22.09      
2 A' 3213 2746 29.56      
3 A' 1632 1395 8.63      
4 A' 1599 1366 2.63      
5 A' 1338 1144 9.43      
6 A' 1278 1092 58.84      
7 A' 1062 907 31.10      
8 A' 534 456 4.12      
9 A" 3300 2820 38.62      
10 A" 1613 1379 4.74      
11 A" 1274 1089 2.68      
12 A" 187 160 1.47      

Unscaled Zero Point Vibrational Energy (zpe) 10173.6 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 8694.4 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 ROHF/6-31G**
ABC
1.79163 0.38989 0.34078

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.982 -0.460 0.000
O2 0.000 0.560 0.000
O3 -1.200 0.046 0.000
H4 1.934 0.053 0.000
H5 0.886 -1.070 0.888
H6 0.886 -1.070 -0.888

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.41562.23981.08051.08201.0820
O21.41561.30531.99892.05682.0568
O32.23981.30533.13342.52662.5266
H41.08051.99893.13341.77431.7743
H51.08202.05682.52661.77431.7756
H61.08202.05682.52661.77431.7756

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 110.751 O2 C1 H4 105.633
O2 C1 H5 110.161 O2 C1 H6 110.161
H4 C1 H5 110.260 H4 C1 H6 110.260
H5 C1 H6 110.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.022      
2 O -0.311      
3 O -0.071      
4 H 0.140      
5 H 0.132      
6 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.971 -1.369 0.000 2.400
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.861 -0.440 0.001
y -0.440 -18.154 -0.000
z 0.001 -0.000 -16.848
Traceless
 xyz
x 0.640 -0.440 0.001
y -0.440 -1.299 -0.000
z 0.001 -0.000 0.659
Polar
3z2-r21.319
x2-y21.293
xy-0.440
xz0.001
yz-0.000


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> 0.000
(<r2>)1/2 0.000