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

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-190.237978
Energy at 298.15K-190.241616
HF Energy-190.237978
Nuclear repulsion energy75.499366
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 mPW1PW91/cc-pVTZ
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' 3176 3047 8.21      
2 A' 3068 2943 14.61      
3 A' 1487 1426 9.97      
4 A' 1448 1389 0.85      
5 A' 1252 1201 13.82      
6 A' 1189 1141 0.38      
7 A' 955 916 14.15      
8 A' 500 480 6.52      
9 A" 3161 3032 12.15      
10 A" 1474 1414 9.90      
11 A" 1136 1090 0.51      
12 A" 131 125 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 9488.4 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 9101.3 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 mPW1PW91/cc-pVTZ
ABC
1.78747 0.38421 0.33657

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.989 -0.476 0.000
O2 0.000 0.561 0.000
O3 -1.203 0.064 0.000
H4 1.951 0.029 0.000
H5 0.871 -1.086 0.894
H6 0.871 -1.086 -0.894

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.43322.25801.08721.08811.0881
O21.43321.30202.02262.06612.0661
O32.25801.30203.15512.53452.5345
H41.08722.02263.15511.79141.7914
H51.08812.06612.53451.79141.7876
H61.08812.06612.53451.79141.7876

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 111.189 O2 C1 H4 105.915
O2 C1 H5 109.298 O2 C1 H6 109.298
H4 C1 H5 110.873 H4 C1 H6 110.873
H5 C1 H6 110.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.055      
2 O -0.036      
3 O -0.175      
4 H 0.086      
5 H 0.090      
6 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.408 -1.089 0.000 2.643
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.500 -0.387 0.000
y -0.387 -17.832 0.000
z 0.000 0.000 -16.793
Traceless
 xyz
x -0.187 -0.387 0.000
y -0.387 -0.686 0.000
z 0.000 0.000 0.873
Polar
3z2-r21.746
x2-y20.332
xy-0.387
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.449 -0.055 0.000
y -0.055 2.806 0.000
z 0.000 0.000 2.584


<r2> (average value of r2) Å2
<r2> 41.499
(<r2>)1/2 6.442