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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-190.792933
Energy at 298.15K-190.797711
Nuclear repulsion energy81.553697
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 mPW1PW91/6-31G*
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 3768 3573 26.39      
2 A 3170 3006 18.87      
3 A 3131 2969 49.04      
4 A 3054 2896 40.24      
5 A 1547 1467 9.94      
6 A 1499 1422 5.32      
7 A 1481 1404 2.17      
8 A 1423 1349 47.62      
9 A 1235 1171 5.12      
10 A 1194 1132 1.63      
11 A 1095 1038 18.16      
12 A 932 884 17.86      
13 A 458 434 6.21      
14 A 262 249 13.86      
15 A 197 187 120.07      

Unscaled Zero Point Vibrational Energy (zpe) 12222.8 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 11590.9 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 mPW1PW91/6-31G*
ABC
1.45341 0.35490 0.30973

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.116 -0.223 0.021
O2 -0.021 0.605 -0.020
O3 -1.153 -0.270 -0.102
H4 1.962 0.468 0.030
H5 1.135 -0.843 0.926
H6 1.173 -0.865 -0.864
H7 -1.567 -0.100 0.758

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40722.27291.09321.09691.09492.7845
O21.40721.43361.98902.08062.07351.8687
O32.27291.43363.20492.57342.51930.9698
H41.09321.98903.20491.79071.78843.6481
H51.09692.08062.57341.79071.79082.8071
H61.09492.07352.51931.78841.79083.2748
H72.78451.86870.96983.64812.80713.2748

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 106.274 O2 C1 H4 104.699
O2 C1 H5 111.782 O2 C1 H6 111.325
O2 O3 H7 100.283 H4 C1 H5 109.697
H4 C1 H6 109.641 H5 C1 H6 109.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.240      
2 O -0.289      
3 O -0.419      
4 H 0.184      
5 H 0.158      
6 H 0.180      
7 H 0.425      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.694 -0.639 1.547 1.812
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.759 -0.227 -2.742
y -0.227 -19.272 -0.055
z -2.742 -0.055 -17.218
Traceless
 xyz
x 3.486 -0.227 -2.742
y -0.227 -3.284 -0.055
z -2.742 -0.055 -0.202
Polar
3z2-r2-0.405
x2-y24.513
xy-0.227
xz-2.742
yz-0.055


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.874 0.299 -0.207
y 0.299 2.592 0.035
z -0.207 0.035 2.632


<r2> (average value of r2) Å2
<r2> 45.524
(<r2>)1/2 6.747