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All results from a given calculation for CH3OOH (Methyl peroxide)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-190.655878
Energy at 298.15K-190.660590
HF Energy-190.491407
Nuclear repulsion energy80.791332
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 B2PLYP/6-31G*
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 3729 3540 27.73      
2 A 3177 3015 19.57      
3 A 3145 2986 47.35      
4 A 3069 2913 36.11      
5 A 1562 1483 8.74      
6 A 1515 1438 3.83      
7 A 1492 1416 3.42      
8 A 1393 1322 51.32      
9 A 1228 1165 4.51      
10 A 1197 1136 2.25      
11 A 1065 1011 22.17      
12 A 876 832 13.38      
13 A 449 426 7.37      
14 A 261 247 7.23      
15 A 172 164 127.47      

Unscaled Zero Point Vibrational Energy (zpe) 12164.5 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 11546.6 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 B2PLYP/6-31G*
ABC
1.41694 0.34965 0.30338

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 -0.229 0.026
O2 -0.013 0.616 -0.030
O3 -1.163 -0.285 -0.094
H4 1.973 0.459 0.025
H5 1.132 -0.833 0.939
H6 1.174 -0.882 -0.850
H7 -1.617 -0.017 0.724

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41782.29071.09251.09511.09372.8362
O21.41781.46201.99362.08552.07951.8815
O32.29071.46203.22532.57552.52680.9734
H41.09251.99363.22531.79241.78933.6884
H51.09512.08552.57551.79241.79022.8752
H61.09372.07952.52681.78931.79023.3181
H72.83621.88150.97343.68842.87523.3181

picture of Methyl peroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 105.386 O2 C1 H4 104.409
O2 C1 H5 111.534 O2 C1 H6 111.137
O2 O3 H7 99.199 H4 C1 H5 110.034
H4 C1 H6 109.862 H5 C1 H6 109.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.163      
2 O -0.318      
3 O -0.435      
4 H 0.168      
5 H 0.148      
6 H 0.166      
7 H 0.434      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.942 0.292 -0.222
y 0.292 2.613 0.066
z -0.222 0.066 2.585


<r2> (average value of r2) Å2
<r2> 46.148
(<r2>)1/2 6.793