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

using model chemistry: ROHF/6-311G*

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/6-311G*
 hartrees
Energy at 0K-189.244820
Energy at 298.15K-189.248647
Nuclear repulsion energy76.180616
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/6-311G*
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' 3321 2842 26.69      
2 A' 3217 2752 33.31      
3 A' 1641 1404 10.62      
4 A' 1606 1374 1.77      
5 A' 1351 1156 12.45      
6 A' 1290 1103 59.44      
7 A' 1067 913 33.44      
8 A' 540 462 4.31      
9 A" 3296 2820 47.62      
10 A" 1621 1387 6.43      
11 A" 1287 1101 3.21      
12 A" 198 169 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 10217.0 cm-1
Scaled (by 0.8556) Zero Point Vibrational Energy (zpe) 8741.6 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 ROHF/6-311G*
ABC
1.81748 0.39182 0.34316

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.978 -0.464 0.000
O2 0.000 0.555 0.000
O3 -1.194 0.056 0.000
H4 1.929 0.045 0.000
H5 0.879 -1.074 0.888
H6 0.879 -1.074 -0.888

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.41282.23411.07921.08121.0812
O21.41281.29451.99552.05242.0524
O32.23411.29453.12382.52222.5222
H41.07921.99553.12381.77331.7733
H51.08122.05242.52221.77331.7750
H61.08122.05242.52221.77331.7750

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 111.146 O2 C1 H4 105.631
O2 C1 H5 110.054 O2 C1 H6 110.054
H4 C1 H5 110.333 H4 C1 H6 110.333
H5 C1 H6 110.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.352      
2 O -0.235      
3 O -0.067      
4 H 0.221      
5 H 0.216      
6 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.967 -1.372 0.000 2.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.044 -0.448 0.001
y -0.448 -18.258 -0.001
z 0.001 -0.001 -16.823
Traceless
 xyz
x 0.497 -0.448 0.001
y -0.448 -1.325 -0.001
z 0.001 -0.001 0.828
Polar
3z2-r21.657
x2-y21.214
xy-0.448
xz0.001
yz-0.001


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