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

using model chemistry: LSDA/3-21G

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/3-21G
 hartrees
Energy at 0K-188.218049
Energy at 298.15K-188.221595
HF Energy-188.218049
Nuclear repulsion energy72.690688
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/3-21G
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' 3103 3052 5.00      
2 A' 2993 2944 6.28      
3 A' 1480 1456 12.90      
4 A' 1390 1368 3.46      
5 A' 1128 1110 1.18      
6 A' 1103 1085 2.62      
7 A' 875 861 2.32      
8 A' 451 444 8.39      
9 A" 3091 3041 7.39      
10 A" 1465 1441 15.82      
11 A" 1067 1049 0.70      
12 A" 135 133 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 9140.5 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 8990.6 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/3-21G
ABC
1.53586 0.36994 0.31649

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.024 -0.440 0.000
O2 0.000 0.615 0.000
O3 -1.244 -0.030 0.000
H4 1.995 0.079 0.000
H5 0.906 -1.060 0.902
H6 0.906 -1.060 -0.902

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.47012.30461.10121.10131.1013
O21.47011.40122.06572.10752.1075
O32.30461.40123.24072.54892.5489
H41.10122.06573.24071.81631.8163
H51.10132.10752.54891.81631.8044
H61.10132.10752.54891.81631.8044

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 106.739 O2 C1 H4 106.016
O2 C1 H5 109.246 O2 C1 H6 109.246
H4 C1 H5 111.112 H4 C1 H6 111.112
H5 C1 H6 110.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.437      
2 O -0.170      
3 O -0.140      
4 H 0.242      
5 H 0.253      
6 H 0.253      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.427 -1.218 0.000 2.716
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.002 -0.455 0.000
y -0.455 -17.636 0.000
z 0.000 0.000 -16.593
Traceless
 xyz
x 0.112 -0.455 0.000
y -0.455 -0.839 0.000
z 0.000 0.000 0.727
Polar
3z2-r21.453
x2-y20.634
xy-0.455
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.893 0.128 0.000
y 0.128 2.085 0.000
z 0.000 0.000 1.926


<r2> (average value of r2) Å2
<r2> 43.033
(<r2>)1/2 6.560