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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-189.174716
Energy at 298.15K-189.178274
HF Energy-189.174716
Nuclear repulsion energy72.042205
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/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' 3170 3059 10.43      
2 A' 3076 2968 11.10      
3 A' 1553 1499 9.00      
4 A' 1457 1406 1.44      
5 A' 1162 1122 3.41      
6 A' 1095 1057 14.82      
7 A' 874 843 8.18      
8 A' 447 431 5.88      
9 A" 3164 3053 17.54      
10 A" 1539 1485 8.94      
11 A" 1112 1073 0.00      
12 A" 134 129 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 9391.5 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 9061.9 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/3-21G
ABC
1.52857 0.35993 0.30863

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.040 -0.450 0.000
O2 0.000 0.618 0.000
O3 -1.262 -0.025 0.000
H4 1.993 0.080 0.000
H5 0.931 -1.061 0.897
H6 0.931 -1.061 -0.897

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.49092.34061.09101.09081.0908
O21.49091.41612.06432.11902.1190
O32.34061.41613.25652.58552.5855
H41.09102.06433.25651.79921.7992
H51.09082.11902.58551.79921.7942
H61.09082.11902.58551.79921.7942

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 107.231 O2 C1 H4 105.116
O2 C1 H5 109.351 O2 C1 H6 109.351
H4 C1 H5 111.100 H4 C1 H6 111.100
H5 C1 H6 110.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.332      
2 O -0.219      
3 O -0.112      
4 H 0.218      
5 H 0.222      
6 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.301 -1.329 0.000 2.657
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.706 -0.454 0.000
y -0.454 -17.718 0.000
z 0.000 0.000 -16.595
Traceless
 xyz
x 0.451 -0.454 0.000
y -0.454 -1.068 0.000
z 0.000 0.000 0.617
Polar
3z2-r21.234
x2-y21.012
xy-0.454
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.876 0.159 0.000
y 0.159 2.047 0.000
z 0.000 0.000 1.869


<r2> (average value of r2) Å2
<r2> 43.696
(<r2>)1/2 6.610