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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-230.116458
Energy at 298.15K 
Nuclear repulsion energy134.938591
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(2df,p)
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 3156 3013 0.00      
2 Ag 3033 2896 0.00      
3 Ag 1526 1457 0.00      
4 Ag 1458 1392 0.00      
5 Ag 1287 1229 0.00      
6 Ag 1121 1070 0.00      
7 Ag 890 850 0.00      
8 Ag 497 475 0.00      
9 Au 3103 2962 84.94      
10 Au 1463 1397 11.01      
11 Au 1183 1130 1.58      
12 Au 208 199 2.92      
13 Au 6i 5i 9.28      
14 Bg 3102 2962 0.00      
15 Bg 1462 1396 0.00      
16 Bg 1189 1135 0.00      
17 Bg 266 254 0.00      
18 Bu 3156 3013 27.01      
19 Bu 3030 2892 93.50      
20 Bu 1518 1449 24.78      
21 Bu 1447 1382 5.64      
22 Bu 1184 1130 16.93      
23 Bu 1101 1051 100.99      
24 Bu 308 294 10.37      

Unscaled Zero Point Vibrational Energy (zpe) 18340.3 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 17509.5 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 mPW1PW91/6-31G(2df,p)
ABC
1.07546 0.15566 0.14345

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.432 0.574 0.000
O2 0.432 -0.574 0.000
C3 0.432 1.674 0.000
C4 -0.432 -1.674 0.000
H5 -0.221 2.549 0.000
H6 1.065 1.688 0.895
H7 1.065 1.688 -0.895
H8 0.221 -2.549 0.000
H9 -1.065 -1.688 0.895
H10 -1.065 -1.688 -0.895

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.43671.39952.24791.98652.06982.06983.19052.51322.5132
O21.43672.24791.39953.19052.51322.51321.98652.06982.0698
C31.39952.24793.45821.09211.09601.09604.22853.78773.7877
C42.24791.39953.45824.22853.78773.78771.09211.09601.0960
H51.98653.19051.09214.22851.78801.78805.11734.41194.4119
H62.06982.51321.09603.78771.78801.78954.41193.99184.3746
H72.06982.51321.09603.78771.78801.78954.41194.37463.9918
H83.19051.98654.22851.09215.11734.41194.41191.78801.7880
H92.51322.06983.78771.09604.41193.99184.37461.78801.7895
H102.51322.06983.78771.09604.41194.37463.99181.78801.7895

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.850 O1 C3 H5 105.079
O1 C3 H6 111.504 O1 C3 H7 111.504
O2 O1 C3 104.850 O2 C4 H8 105.079
O2 C4 H9 111.504 O2 C4 H10 111.504
H5 C3 H6 109.605 H5 C3 H7 109.605
H6 C3 H7 109.449 H8 C4 H9 109.605
H8 C4 H10 109.605 H9 C4 H10 109.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.191      
2 O -0.191      
3 C -0.249      
4 C -0.249      
5 H 0.157      
6 H 0.141      
7 H 0.141      
8 H 0.157      
9 H 0.141      
10 H 0.141      


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 -25.058 1.489 0.000
y 1.489 -18.759 0.000
z 0.000 0.000 -24.731
Traceless
 xyz
x -3.313 1.489 0.000
y 1.489 6.135 0.000
z 0.000 0.000 -2.822
Polar
3z2-r2-5.644
x2-y2-6.299
xy1.489
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.359 0.240 0.000
y 0.240 6.653 0.000
z 0.000 0.000 4.154


<r2> (average value of r2) Å2
<r2> 90.636
(<r2>)1/2 9.520