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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-189.196417
Energy at 298.15K-189.200220
Nuclear repulsion energy75.882164
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' 3343 2977 22.44      
2 A' 3241 2886 28.72      
3 A' 1649 1468 7.93      
4 A' 1613 1436 3.28      
5 A' 1346 1198 9.40      
6 A' 1279 1139 59.71      
7 A' 1064 947 31.37      
8 A' 534 475 4.10      
9 A" 3325 2961 39.10      
10 A" 1631 1453 4.16      
11 A" 1282 1142 3.01      
12 A" 191 170 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 10248.6 cm-1
Scaled (by 0.8904) Zero Point Vibrational Energy (zpe) 9125.3 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
1.79240 0.39001 0.34088

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 -0.459 0.000
O2 0.000 0.560 0.000
O3 -1.200 0.045 0.000
H4 1.933 0.054 0.000
H5 0.885 -1.069 0.887
H6 0.885 -1.069 -0.887

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.41532.23971.07991.08131.0813
O21.41531.30541.99782.05532.0553
O32.23971.30543.13252.52532.5253
H41.07991.99783.13251.77371.7737
H51.08132.05532.52531.77371.7750
H61.08132.05532.52531.77371.7750

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 105.596
O2 C1 H5 110.103 O2 C1 H6 110.103
H4 C1 H5 110.307 H4 C1 H6 110.307
H5 C1 H6 110.327
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 -0.175      
2 O -0.303      
3 O -0.070      
4 H 0.189      
5 H 0.180      
6 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.968 -1.365 0.000 2.395
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.866 -0.444 0.000
y -0.444 -18.164 -0.000
z 0.000 -0.000 -16.863
Traceless
 xyz
x 0.647 -0.444 0.000
y -0.444 -1.299 -0.000
z 0.000 -0.000 0.652
Polar
3z2-r21.304
x2-y21.298
xy-0.444
xz0.000
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