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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-227.171951
Energy at 298.15K-227.178594
Nuclear repulsion energy130.447870
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 B3LYP/STO-3G
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 3442 3072 0.00      
2 Ag 3241 2892 0.00      
3 Ag 1669 1489 0.00      
4 Ag 1569 1401 0.00      
5 Ag 1350 1204 0.00      
6 Ag 1213 1083 0.00      
7 Ag 975 870 0.00      
8 Ag 492 439 0.00      
9 Au 3389 3025 17.31      
10 Au 1627 1452 6.65      
11 Au 1163 1038 0.74      
12 Au 169 151 1.55      
13 Au 20 18 6.01      
14 Bg 3389 3024 0.00      
15 Bg 1627 1452 0.00      
16 Bg 1167 1042 0.00      
17 Bg 210 187 0.00      
18 Bu 3442 3072 3.51      
19 Bu 3239 2891 18.46      
20 Bu 1665 1486 15.94      
21 Bu 1549 1382 14.59      
22 Bu 1192 1064 1.34      
23 Bu 1100 982 10.93      
24 Bu 306 273 4.07      

Unscaled Zero Point Vibrational Energy (zpe) 19602.1 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 17492.9 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 B3LYP/STO-3G
ABC
0.97652 0.14728 0.13470

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.467 0.576 0.000
O2 0.467 -0.576 0.000
C3 0.467 1.723 0.000
C4 -0.467 -1.723 0.000
H5 -0.170 2.628 0.000
H6 1.114 1.731 0.903
H7 1.114 1.731 -0.903
H8 0.170 -2.628 0.000
H9 -1.114 -1.731 0.903
H10 -1.114 -1.731 -0.903

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.48301.47922.29912.07352.15642.15643.26672.56092.5609
O21.48302.29911.47923.26672.56092.56092.07352.15642.1564
C31.47922.29913.57061.10641.11091.11094.36133.90503.9050
C42.29911.47923.57064.36133.90503.90501.10641.11091.1109
H52.07353.26671.10644.36131.80761.80765.26704.55114.5511
H62.15642.56091.11093.90501.80761.80564.55114.11794.4964
H72.15642.56091.11093.90501.80761.80564.55114.49644.1179
H83.26672.07354.36131.10645.26704.55114.55111.80761.8076
H92.56092.15643.90501.11094.55114.11794.49641.80761.8056
H102.56092.15643.90501.11094.55114.49644.11791.80761.8056

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 101.820 O1 C3 H5 105.722
O1 C3 H6 111.940 O1 C3 H7 111.940
O2 O1 C3 101.820 O2 C4 H8 105.722
O2 C4 H9 111.940 O2 C4 H10 111.940
H5 C3 H6 109.216 H5 C3 H7 109.216
H6 C3 H7 108.722 H8 C4 H9 109.216
H8 C4 H10 109.216 H9 C4 H10 108.722
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.114      
2 O -0.114      
3 C -0.134      
4 C -0.134      
5 H 0.088      
6 H 0.080      
7 H 0.080      
8 H 0.088      
9 H 0.080      
10 H 0.080      


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 -23.125 1.350 0.000
y 1.350 -18.567 0.000
z 0.000 0.000 -22.897
Traceless
 xyz
x -2.393 1.350 0.000
y 1.350 4.444 0.000
z 0.000 0.000 -2.051
Polar
3z2-r2-4.102
x2-y2-4.558
xy1.350
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.203 0.240 0.000
y 0.240 4.286 0.000
z 0.000 0.000 1.753


<r2> (average value of r2) Å2
<r2> 94.579
(<r2>)1/2 9.725