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

using model chemistry: MP2=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-189.105440
Energy at 298.15K-189.109891
HF Energy-188.757281
Nuclear repulsion energy78.222583
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 MP2=FULL/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 3432 3277 3.66      
2 A 3185 3041 17.62      
3 A 3167 3024 40.51      
4 A 3091 2951 18.11      
5 A 1623 1550 6.38      
6 A 1574 1503 3.49      
7 A 1506 1438 2.05      
8 A 1338 1277 52.57      
9 A 1178 1125 0.48      
10 A 1173 1120 16.98      
11 A 1014 968 12.98      
12 A 864 825 7.13      
13 A 402 384 19.35      
14 A 231 221 6.75      
15 A 69 66 164.29      

Unscaled Zero Point Vibrational Energy (zpe) 11923.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 11384.2 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 MP2=FULL/3-21G
ABC
1.28202 0.33806 0.28200

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.159 -0.235 0.005
O2 -0.011 0.664 -0.006
O3 -1.164 -0.365 -0.008
H4 2.019 0.439 -0.001
H5 1.163 -0.854 0.905
H6 1.165 -0.871 -0.883
H7 -1.900 0.309 0.068

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.47572.32721.09241.09251.09253.1077
O21.47571.54552.04212.12422.12361.9231
O32.32721.54553.28302.54712.53971.0006
H41.09242.04213.28301.79631.79563.9212
H51.09252.12422.54711.79631.78833.3813
H61.09252.12362.53971.79561.78833.4195
H73.10771.92311.00063.92123.38133.4195

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 100.737 O2 C1 H4 104.349
O2 C1 H5 110.722 O2 C1 H6 110.674
O2 O3 H7 95.726 H4 C1 H5 110.598
H4 C1 H6 110.529 H5 C1 H6 109.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 O -0.307      
3 O -0.360      
4 H 0.192      
5 H 0.186      
6 H 0.188      
7 H 0.367      


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> 48.066
(<r2>)1/2 6.933