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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-190.315789
Energy at 298.15K-190.320522
HF Energy-189.792232
Nuclear repulsion energy80.648530
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 QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3718 3540 27.26      
2 A 3167 3016 20.53      
3 A 3141 2991 44.26      
4 A 3061 2915 32.27      
5 A 1560 1485 7.74      
6 A 1517 1445 3.59      
7 A 1494 1423 3.12      
8 A 1404 1337 55.26      
9 A 1230 1171 4.69      
10 A 1197 1140 2.37      
11 A 1079 1028 22.71      
12 A 878 836 11.86      
13 A 454 432 7.32      
14 A 262 249 6.54      
15 A 180 171 132.70      

Unscaled Zero Point Vibrational Energy (zpe) 12170.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 11589.5 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 QCISD/6-31G*
ABC
1.40484 0.34941 0.30272

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 -0.230 0.026
O2 -0.015 0.619 -0.030
O3 -1.161 -0.287 -0.094
H4 1.980 0.457 0.027
H5 1.126 -0.835 0.941
H6 1.170 -0.882 -0.854
H7 -1.624 -0.016 0.721

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42342.29131.09541.09751.09612.8448
O21.42341.46292.00192.08832.08241.8861
O32.29131.46293.23002.56982.52240.9760
H41.09542.00193.23001.79871.79593.7004
H51.09752.08832.56981.79871.79612.8780
H61.09612.08242.52241.79591.79613.3218
H72.84481.88610.97603.70042.87803.3218

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 105.081 O2 C1 H4 104.509
O2 C1 H5 111.210 O2 C1 H6 110.808
O2 O3 H7 99.367 H4 C1 H5 110.216
H4 C1 H6 110.061 H5 C1 H6 109.925
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at QCISD/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.144      
2 O -0.359      
3 O -0.466      
4 H 0.176      
5 H 0.157      
6 H 0.175      
7 H 0.461      


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 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> 46.266
(<r2>)1/2 6.802