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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-230.061609
Energy at 298.15K-230.068587
Nuclear repulsion energy134.717393
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 B1B95/6-31G**
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 3171 3028 0.00      
2 Ag 3050 2912 0.00      
3 Ag 1537 1468 0.00      
4 Ag 1464 1398 0.00      
5 Ag 1286 1228 0.00      
6 Ag 1119 1069 0.00      
7 Ag 880 840 0.00      
8 Ag 492 470 0.00      
9 Au 3122 2981 92.47      
10 Au 1473 1406 10.31      
11 Au 1183 1130 1.24      
12 Au 206 197 3.45      
13 Au 19 18 11.13      
14 Bg 3122 2981 0.00      
15 Bg 1472 1405 0.00      
16 Bg 1190 1136 0.00      
17 Bg 263 251 0.00      
18 Bu 3171 3028 31.26      
19 Bu 3046 2908 95.06      
20 Bu 1529 1460 25.44      
21 Bu 1454 1388 7.53      
22 Bu 1183 1130 19.15      
23 Bu 1105 1055 102.94      
24 Bu 304 290 11.36      

Unscaled Zero Point Vibrational Energy (zpe) 18420.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 17588.2 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 B1B95/6-31G**
ABC
1.06552 0.15545 0.14308

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.436 0.577 0.000
O2 0.436 -0.577 0.000
C3 0.436 1.675 0.000
C4 -0.436 -1.675 0.000
H5 -0.214 2.550 0.000
H6 1.067 1.685 0.894
H7 1.067 1.685 -0.894
H8 0.214 -2.550 0.000
H9 -1.067 -1.685 0.894
H10 -1.067 -1.685 -0.894

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.44541.40212.25131.98622.07022.07023.19382.51222.5122
O21.44542.25131.40213.19382.51222.51221.98622.07022.0702
C31.40212.25133.46111.09061.09431.09434.23103.78743.7874
C42.25131.40213.46114.23103.78743.78741.09061.09431.0943
H51.98623.19381.09064.23101.78611.78615.11884.41174.4117
H62.07022.51221.09433.78741.78611.78784.41173.98854.3709
H72.07022.51221.09433.78741.78611.78784.41174.37093.9885
H83.19381.98624.23101.09065.11884.41174.41171.78611.7861
H92.51222.07023.78741.09434.41173.98854.37091.78611.7878
H102.51222.07023.78741.09434.41174.37093.98851.78611.7878

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.479 O1 C3 H5 104.965
O1 C3 H6 111.454 O1 C3 H7 111.454
O2 O1 C3 104.479 O2 C4 H8 104.965
O2 C4 H9 111.454 O2 C4 H10 111.454
H5 C3 H6 109.664 H5 C3 H7 109.664
H6 C3 H7 109.541 H8 C4 H9 109.664
H8 C4 H10 109.664 H9 C4 H10 109.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.297      
2 O -0.297      
3 C -0.087      
4 C -0.087      
5 H 0.136      
6 H 0.124      
7 H 0.124      
8 H 0.136      
9 H 0.124      
10 H 0.124      


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 -25.199 1.713 0.000
y 1.713 -18.392 0.000
z 0.000 0.000 -24.898
Traceless
 xyz
x -3.554 1.713 0.000
y 1.713 6.657 0.000
z 0.000 0.000 -3.102
Polar
3z2-r2-6.205
x2-y2-6.807
xy1.713
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.175 0.182 0.000
y 0.182 6.426 0.000
z 0.000 0.000 3.932


<r2> (average value of r2) Å2
<r2> 90.759
(<r2>)1/2 9.527