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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-45.743590
Energy at 298.15K-45.750814
Nuclear repulsion energy79.564040
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/CEP-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 Ag 3331 2992 0.00      
2 Ag 3233 2903 0.00      
3 Ag 1647 1479 0.00      
4 Ag 1596 1433 0.00      
5 Ag 1400 1257 0.00      
6 Ag 1289 1157 0.00      
7 Ag 994 892 0.00      
8 Ag 535 481 0.00      
9 Au 3308 2970 169.07      
10 Au 1603 1440 6.07      
11 Au 1276 1146 6.74      
12 Au 227 204 3.36      
13 Au 37 33 15.52      
14 Bg 3307 2969 0.00      
15 Bg 1604 1440 0.00      
16 Bg 1281 1150 0.00      
17 Bg 285 256 0.00      
18 Bu 3332 2992 108.85      
19 Bu 3228 2899 151.90      
20 Bu 1641 1474 19.99      
21 Bu 1583 1422 33.45      
22 Bu 1288 1157 12.20      
23 Bu 1174 1055 206.24      
24 Bu 333 299 11.68      

Unscaled Zero Point Vibrational Energy (zpe) 19764.5 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 17748.5 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 HF/CEP-31G*
ABC
1.11012 0.15543 0.14382

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.424 0.560 0.000
O2 0.424 -0.560 0.000
C3 0.424 1.683 0.000
C4 -0.424 -1.683 0.000
H5 -0.239 2.546 0.000
H6 1.050 1.692 0.893
H7 1.050 1.692 -0.893
H8 0.239 -2.546 0.000
H9 -1.050 -1.692 0.893
H10 -1.050 -1.692 -0.893

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.40411.40692.24271.99512.06162.06163.17612.50202.5020
O21.40412.24271.40693.17612.50202.50201.99512.06162.0616
C31.40692.24273.47081.08841.09061.09064.23333.78913.7891
C42.24271.40693.47084.23333.78913.78911.08841.09061.0906
H51.99513.17611.08844.23331.78541.78545.11514.40664.4066
H62.06162.50201.09063.78911.78541.78614.40663.98224.3644
H72.06162.50201.09063.78911.78541.78614.40664.36443.9822
H83.17611.99514.23331.08845.11514.40664.40661.78541.7854
H92.50202.06163.78911.09064.40663.98224.36441.78541.7861
H102.50202.06163.78911.09064.40664.36443.98221.78541.7861

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 105.847 O1 C3 H5 105.470
O1 C3 H6 110.630 O1 C3 H7 110.630
O2 O1 C3 105.847 O2 C4 H8 105.470
O2 C4 H9 110.630 O2 C4 H10 110.630
H5 C3 H6 110.046 H5 C3 H7 110.046
H6 C3 H7 109.936 H8 C4 H9 110.046
H8 C4 H10 110.046 H9 C4 H10 109.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.211      
2 O -0.211      
3 C -0.240      
4 C -0.240      
5 H 0.167      
6 H 0.142      
7 H 0.142      
8 H 0.167      
9 H 0.142      
10 H 0.142      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.565 2.144 0.000
y 2.144 -18.193 0.000
z 0.000 0.000 -24.808
Traceless
 xyz
x -4.065 2.144 0.000
y 2.144 6.993 0.000
z 0.000 0.000 -2.929
Polar
3z2-r2-5.858
x2-y2-7.372
xy2.144
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.667 -0.123 0.000
y -0.123 5.661 0.000
z 0.000 0.000 3.457


<r2> (average value of r2) Å2
<r2> 76.412
(<r2>)1/2 8.741