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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-230.127289
Energy at 298.15K-230.134279
Nuclear repulsion energy134.314080
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3137 3020 0.00      
2 Ag 3019 2907 0.00      
3 Ag 1535 1478 0.00      
4 Ag 1464 1410 0.00      
5 Ag 1282 1235 0.00      
6 Ag 1091 1050 0.00      
7 Ag 856 824 0.00      
8 Ag 491 473 0.00      
9 Au 3085 2970 114.39      
10 Au 1472 1417 15.18      
11 Au 1186 1141 1.26      
12 Au 212 204 3.83      
13 Au 21 21 11.35      
14 Bg 3084 2969 0.00      
15 Bg 1470 1416 0.00      
16 Bg 1191 1146 0.00      
17 Bg 270 260 0.00      
18 Bu 3136 3019 37.72      
19 Bu 3015 2903 109.31      
20 Bu 1528 1471 27.46      
21 Bu 1455 1401 2.83      
22 Bu 1186 1142 12.31      
23 Bu 1081 1040 112.89      
24 Bu 304 293 11.48      

Unscaled Zero Point Vibrational Energy (zpe) 18285.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 17603.2 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 B3PW91/6-311G*
ABC
1.06591 0.15398 0.14189

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.435 0.581 0.000
O2 0.435 -0.581 0.000
C3 0.435 1.684 0.000
C4 -0.435 -1.684 0.000
H5 -0.223 2.555 0.000
H6 1.064 1.694 0.897
H7 1.064 1.694 -0.897
H8 0.223 -2.555 0.000
H9 -1.064 -1.694 0.897
H10 -1.064 -1.694 -0.897

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.45171.40402.26481.98532.07122.07123.20472.52542.5254
O21.45172.26481.40403.20472.52542.52541.98532.07122.0712
C31.40402.26483.47751.09201.09561.09564.24403.80263.8026
C42.26481.40403.47754.24403.80263.80261.09201.09561.0956
H51.98533.20471.09204.24401.78961.78965.12984.42374.4237
H62.07122.52541.09563.80261.78961.79324.42374.00154.3849
H72.07122.52541.09563.80261.78961.79324.42374.38494.0015
H83.20471.98534.24401.09205.12984.42374.42371.78961.7896
H92.52542.07123.80261.09564.42374.00154.38491.78961.7932
H102.52542.07123.80261.09564.42374.38494.00151.78961.7932

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.936 O1 C3 H5 104.695
O1 C3 H6 111.316 O1 C3 H7 111.316
O2 O1 C3 104.936 O2 C4 H8 104.695
O2 C4 H9 111.316 O2 C4 H10 111.316
H5 C3 H6 109.778 H5 C3 H7 109.778
H6 C3 H7 109.841 H8 C4 H9 109.778
H8 C4 H10 109.778 H9 C4 H10 109.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.230      
2 O -0.230      
3 C -0.414      
4 C -0.414      
5 H 0.223      
6 H 0.210      
7 H 0.210      
8 H 0.223      
9 H 0.210      
10 H 0.210      


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 -25.620 1.729 0.000
y 1.729 -18.563 0.000
z 0.000 0.000 -25.177
Traceless
 xyz
x -3.751 1.729 0.000
y 1.729 6.836 0.000
z 0.000 0.000 -3.085
Polar
3z2-r2-6.171
x2-y2-7.058
xy1.729
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.362 0.235 0.000
y 0.235 6.599 0.000
z 0.000 0.000 4.083


<r2> (average value of r2) Å2
<r2> 91.535
(<r2>)1/2 9.567