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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-229.465520
Energy at 298.15K-229.472525
Nuclear repulsion energy133.501492
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 MP2=FULL/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 3222 3035 0.00      
2 Ag 3100 2921 0.00      
3 Ag 1582 1490 0.00      
4 Ag 1505 1418 0.00      
5 Ag 1282 1208 0.00      
6 Ag 1102 1038 0.00      
7 Ag 833 785 0.00      
8 Ag 490 462 0.00      
9 Au 3189 3005 72.59      
10 Au 1528 1440 8.59      
11 Au 1205 1135 1.43      
12 Au 221 208 3.56      
13 Au 20 19 12.41      
14 Bg 3189 3005 0.00      
15 Bg 1528 1440 0.00      
16 Bg 1210 1140 0.00      
17 Bg 277 261 0.00      
18 Bu 3222 3035 28.13      
19 Bu 3099 2919 65.63      
20 Bu 1576 1485 19.91      
21 Bu 1498 1411 6.35      
22 Bu 1199 1130 6.51      
23 Bu 1087 1024 95.15      
24 Bu 308 290 13.75      

Unscaled Zero Point Vibrational Energy (zpe) 18734.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 17651.8 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 MP2=FULL/6-31G*
ABC
1.02292 0.15386 0.14098

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.450 0.586 0.000
O2 0.450 -0.586 0.000
C3 0.450 1.683 0.000
C4 -0.450 -1.683 0.000
H5 -0.196 2.563 0.000
H6 1.077 1.674 0.896
H7 1.077 1.674 -0.896
H8 0.196 -2.563 0.000
H9 -1.077 -1.674 0.896
H10 -1.077 -1.674 -0.896

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.47741.41842.26901.99292.07792.07793.21442.51112.5111
O21.47742.26901.41843.21442.51112.51111.99292.07792.0779
C31.41842.26903.48391.09151.09371.09374.25323.79533.7953
C42.26901.41843.48394.25323.79533.79531.09151.09371.0937
H51.99293.21441.09154.25321.79261.79265.14064.41944.4194
H62.07792.51111.09373.79531.79261.79174.41943.98174.3662
H72.07792.51111.09373.79531.79261.79174.41944.36623.9817
H83.21441.99294.25321.09155.14064.41944.41941.79261.7926
H92.51112.07793.79531.09374.41943.98174.36621.79261.7917
H102.51112.07793.79531.09374.41944.36623.98171.79261.7917

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 103.151 O1 C3 H5 104.363
O1 C3 H6 110.955 O1 C3 H7 110.955
O2 O1 C3 103.151 O2 C4 H8 104.363
O2 C4 H9 110.955 O2 C4 H10 110.955
H5 C3 H6 110.231 H5 C3 H7 110.231
H6 C3 H7 109.988 H8 C4 H9 110.231
H8 C4 H10 110.231 H9 C4 H10 109.988
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability