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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at G4
 hartrees
Energy at 0K-190.127520
Energy at 298.15K-190.122690
HF Energy-190.230855
Nuclear repulsion energy74.935654
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 B3LYP/6-31G(2df,p)
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' 3159 3048 9.99      
2 A' 3051 2944 14.04      
3 A' 1482 1431 7.23      
4 A' 1443 1392 1.09      
5 A' 1227 1184 10.29      
6 A' 1168 1127 0.82      
7 A' 923 890 12.15      
8 A' 494 477 6.59      
9 A" 3145 3035 13.56      
10 A" 1470 1419 6.82      
11 A" 1129 1090 0.60      
12 A" 128 123 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 9409.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9079.8 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 B3LYP/6-31G(2df,p)
ABC
1.75290 0.37921 0.33167

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.997 -0.479 0.000
O2 0.000 0.568 0.000
O3 -1.212 0.060 0.000
H4 1.962 0.032 0.000
H5 0.877 -1.090 0.897
H6 0.877 -1.090 -0.897

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.44512.27381.09141.09211.0921
O21.44511.31422.03362.07882.0788
O32.27381.31423.17402.54802.5480
H41.09142.03363.17401.79961.7996
H51.09212.07882.54801.79961.7943
H61.09212.07882.54801.79961.7943

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 111.822 O2 C1 H4 106.371
O2 C1 H5 109.601 O2 C1 H6 109.601
H4 C1 H5 110.544 H4 C1 H6 110.544
H5 C1 H6 110.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.205      
2 O -0.044      
3 O -0.196      
4 H 0.144      
5 H 0.150      
6 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.343 -1.074 0.000 2.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 41.789
(<r2>)1/2 6.464