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

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-188.763113
Energy at 298.15K-188.767761
Nuclear repulsion energy80.344232
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 HF/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 3825 3464 43.39      
2 A 3306 2994 19.34      
3 A 3303 2991 39.90      
4 A 3226 2921 24.05      
5 A 1696 1536 5.94      
6 A 1655 1499 4.77      
7 A 1599 1448 7.21      
8 A 1505 1363 59.35      
9 A 1297 1174 8.60      
10 A 1260 1141 0.61      
11 A 1187 1075 15.80      
12 A 993 899 32.28      
13 A 438 397 18.89      
14 A 232 210 6.65      
15 A 114 103 208.04      

Unscaled Zero Point Vibrational Energy (zpe) 12817.1 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 11607.2 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 HF/3-21G
ABC
1.43434 0.34740 0.29512

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.152 -0.213 -0.000
O2 -0.029 0.619 0.000
O3 -1.139 -0.344 0.000
H4 1.983 0.476 -0.000
H5 1.172 -0.831 0.885
H6 1.172 -0.831 -0.885
H7 -1.890 0.270 -0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.44482.29411.08001.07921.07923.0803
O21.44481.46892.01762.08022.08021.8932
O32.29411.46893.22772.52182.52150.9709
H41.08002.01763.22771.77441.77443.8789
H51.07922.08022.52181.77441.76973.3725
H61.07922.08022.52151.77441.76973.3722
H73.08031.89320.97093.87893.37253.3722

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 103.877 O2 C1 H4 105.172
O2 C1 H5 110.173 O2 C1 H6 110.171
O2 O3 H7 99.771 H4 C1 H5 110.534
H4 C1 H6 110.533 H5 C1 H6 110.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.244      
2 O -0.387      
3 O -0.417      
4 H 0.214      
5 H 0.211      
6 H 0.211      
7 H 0.412      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.374 0.001 -0.000 0.374
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.567 -2.215 0.000
y -2.215 -19.396 0.000
z 0.000 0.000 -18.543
Traceless
 xyz
x 7.403 -2.215 0.000
y -2.215 -4.341 0.000
z 0.000 0.000 -3.062
Polar
3z2-r2-6.124
x2-y27.829
xy-2.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.043 0.301 0.000
y 0.301 2.352 0.000
z 0.000 0.000 1.736


<r2> (average value of r2) Å2
<r2> 46.427
(<r2>)1/2 6.814