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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: TPSSh/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 TPSSh/6-31G*
 hartrees
Energy at 0K-230.168208
Energy at 298.15K-230.175116
HF Energy-230.168208
Nuclear repulsion energy133.342860
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 TPSSh/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 3146 3018 0.00      
2 Ag 3035 2912 0.00      
3 Ag 1561 1498 0.00      
4 Ag 1482 1421 0.00      
5 Ag 1278 1226 0.00      
6 Ag 1066 1023 0.00      
7 Ag 837 803 0.00      
8 Ag 473 453 0.00      
9 Au 3099 2973 116.34      
10 Au 1500 1440 6.66      
11 Au 1186 1137 1.57      
12 Au 208 200 3.54      
13 Au 13 13 11.02      
14 Bg 3098 2973 0.00      
15 Bg 1500 1439 0.00      
16 Bg 1191 1143 0.00      
17 Bg 265 254 0.00      
18 Bu 3146 3018 42.21      
19 Bu 3031 2908 103.13      
20 Bu 1554 1491 25.00      
21 Bu 1470 1411 12.68      
22 Bu 1182 1134 11.60      
23 Bu 1063 1019 103.42      
24 Bu 293 281 11.24      

Unscaled Zero Point Vibrational Energy (zpe) 18337.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 17593.4 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 TPSSh/6-31G*
ABC
1.03332 0.15265 0.14019

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.435 0.578 0.000
O2 0.435 -0.578 0.000
C3 0.435 1.690 0.000
C4 -0.435 -1.690 0.000
H5 -0.230 2.557 0.000
H6 1.069 1.705 0.897
H7 1.069 1.705 -0.897
H8 0.230 -2.557 0.000
H9 -1.069 -1.705 0.897
H10 -1.069 -1.705 -0.897

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.44691.41232.26781.98962.08292.08293.20452.53362.5336
O21.44692.26781.41233.20452.53362.53361.98962.08292.0829
C31.41232.26783.49031.09261.09841.09844.25183.82043.8204
C42.26781.41233.49034.25183.82043.82041.09261.09841.0984
H51.98963.20451.09264.25181.79351.79355.13434.43574.4357
H62.08292.53361.09843.82041.79351.79414.43574.02534.4070
H72.08292.53361.09843.82041.79351.79414.43574.40704.0253
H83.20451.98964.25181.09265.13434.43574.43571.79351.7935
H92.53362.08293.82041.09844.43574.02534.40701.79351.7941
H102.53362.08293.82041.09844.43574.40704.02531.79351.7941

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.958 O1 C3 H5 104.449
O1 C3 H6 111.507 O1 C3 H7 111.507
O2 O1 C3 104.958 O2 C4 H8 104.449
O2 C4 H9 111.507 O2 C4 H10 111.507
H5 C3 H6 109.882 H5 C3 H7 109.882
H6 C3 H7 109.510 H8 C4 H9 109.882
H8 C4 H10 109.882 H9 C4 H10 109.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.286      
2 O -0.286      
3 C -0.211      
4 C -0.211      
5 H 0.174      
6 H 0.162      
7 H 0.162      
8 H 0.174      
9 H 0.162      
10 H 0.162      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.207 0.200 0.000
y 0.200 6.597 0.000
z 0.000 0.000 3.917


<r2> (average value of r2) Å2
<r2> 92.178
(<r2>)1/2 9.601