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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-230.004448
Energy at 298.15K-230.011306
Nuclear repulsion energy130.970621
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 B3PW91/6-31G
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 3170 3036 0.00      
2 Ag 3055 2926 0.00      
3 Ag 1558 1492 0.00      
4 Ag 1474 1412 0.00      
5 Ag 1247 1194 0.00      
6 Ag 1028 984 0.00      
7 Ag 803 769 0.00      
8 Ag 459 440 0.00      
9 Au 3145 3012 85.48      
10 Au 1498 1435 17.71      
11 Au 1170 1121 0.05      
12 Au 190 182 4.70      
13 Au 43 41 17.39      
14 Bg 3144 3011 0.00      
15 Bg 1498 1435 0.00      
16 Bg 1173 1124 0.00      
17 Bg 238 228 0.00      
18 Bu 3169 3035 28.29      
19 Bu 3052 2923 68.99      
20 Bu 1551 1486 28.75      
21 Bu 1465 1403 0.97      
22 Bu 1162 1113 5.23      
23 Bu 1022 979 71.67      
24 Bu 281 269 15.55      

Unscaled Zero Point Vibrational Energy (zpe) 18297.3 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 17523.3 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 B3PW91/6-31G
ABC
1.00017 0.14644 0.13434

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.456 0.610 0.000
O2 0.456 -0.610 0.000
C3 0.456 1.726 0.000
C4 -0.456 -1.726 0.000
H5 -0.195 2.604 0.000
H6 1.083 1.721 0.897
H7 1.083 1.721 -0.897
H8 0.195 -2.604 0.000
H9 -1.083 -1.721 0.897
H10 -1.083 -1.721 -0.897

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.52371.44152.33622.01132.09982.09983.27982.57552.5755
O21.52372.33621.44153.27982.57552.57552.01132.09982.0998
C31.44152.33623.57061.09341.09421.09424.33833.88053.8805
C42.33621.44153.57064.33833.88053.88051.09341.09421.0942
H52.01133.27981.09344.33831.79371.79375.22334.50614.5061
H62.09982.57551.09423.88051.79371.79364.50614.06764.4455
H72.09982.57551.09423.88051.79371.79364.50614.44554.0676
H83.27982.01134.33831.09345.22334.50614.50611.79371.7937
H92.57552.09983.88051.09424.50614.06764.44551.79371.7936
H102.57552.09983.88051.09424.50614.44554.06761.79371.7936

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 103.936 O1 C3 H5 104.176
O1 C3 H6 111.063 O1 C3 H7 111.063
O2 O1 C3 103.936 O2 C4 H8 104.176
O2 C4 H9 111.063 O2 C4 H10 111.063
H5 C3 H6 110.158 H5 C3 H7 110.158
H6 C3 H7 110.086 H8 C4 H9 110.158
H8 C4 H10 110.158 H9 C4 H10 110.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.331      
2 O -0.331      
3 C -0.205      
4 C -0.205      
5 H 0.185      
6 H 0.175      
7 H 0.175      
8 H 0.185      
9 H 0.175      
10 H 0.175      


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 -25.605 2.398 0.000
y 2.398 -17.211 0.000
z 0.000 0.000 -25.089
Traceless
 xyz
x -4.455 2.398 0.000
y 2.398 8.136 0.000
z 0.000 0.000 -3.681
Polar
3z2-r2-7.362
x2-y2-8.394
xy2.398
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.109 0.160 0.000
y 0.160 6.779 0.000
z 0.000 0.000 3.608


<r2> (average value of r2) Å2
<r2> 95.076
(<r2>)1/2 9.751