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

using model chemistry: ROHF/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 ROHF/3-21G
 hartrees
Energy at 0K-188.167251
Energy at 298.15K-188.170979
Nuclear repulsion energy72.680422
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/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' 3325 3016 13.28      
2 A' 3236 2935 16.75      
3 A' 1682 1525 8.22      
4 A' 1600 1452 3.88      
5 A' 1293 1173 0.16      
6 A' 1170 1061 34.16      
7 A' 970 880 20.04      
8 A' 471 427 3.02      
9 A" 3317 3009 30.59      
10 A" 1659 1505 6.88      
11 A" 1250 1133 0.79      
12 A" 187 169 2.55      

Unscaled Zero Point Vibrational Energy (zpe) 10080.1 cm-1
Scaled (by 0.907) Zero Point Vibrational Energy (zpe) 9142.6 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/3-21G
ABC
1.57997 0.36414 0.31336

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.035 -0.425 0.000
O2 0.000 0.605 0.000
O3 -1.260 -0.042 0.000
H4 1.966 0.119 0.000
H5 0.952 -1.033 0.887
H6 0.952 -1.033 -0.887

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.46002.32691.07831.07831.0783
O21.46001.41652.02502.09182.0918
O32.32691.41653.23012.58112.5811
H41.07832.02503.23011.77261.7726
H51.07832.09182.58111.77261.7730
H61.07832.09182.58111.77261.7730

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 107.971 O2 C1 H4 104.839
O2 C1 H5 110.080 O2 C1 H6 110.080
H4 C1 H5 110.556 H4 C1 H6 110.556
H5 C1 H6 110.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.270      
2 O -0.368      
3 O -0.030      
4 H 0.231      
5 H 0.219      
6 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.019 -1.674 0.000 2.623
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.286 -0.475 0.000
y -0.475 -18.353 -0.000
z 0.000 -0.000 -16.805
Traceless
 xyz
x 1.293 -0.475 0.000
y -0.475 -1.807 -0.000
z 0.000 -0.000 0.514
Polar
3z2-r21.027
x2-y22.067
xy-0.475
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