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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-229.488633
Energy at 298.15K-229.495604
Nuclear repulsion energy133.432007
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 QCISD/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 3019 0.00      
2 Ag 3063 2917 0.00      
3 Ag 1566 1492 0.00      
4 Ag 1496 1425 0.00      
5 Ag 1288 1226 0.00      
6 Ag 1114 1061 0.00      
7 Ag 848 808 0.00      
8 Ag 493 470 0.00      
9 Au 3138 2988 85.56      
10 Au 1514 1442 7.48      
11 Au 1198 1141 1.90      
12 Au 216 206 3.37      
13 Au 7 7 12.52      
14 Bg 3137 2988 0.00      
15 Bg 1514 1442 0.00      
16 Bg 1203 1146 0.00      
17 Bg 271 258 0.00      
18 Bu 3170 3019 37.83      
19 Bu 3060 2914 76.77      
20 Bu 1561 1486 19.83      
21 Bu 1487 1416 9.52      
22 Bu 1197 1140 7.50      
23 Bu 1090 1038 108.94      
24 Bu 310 295 12.39      

Unscaled Zero Point Vibrational Energy (zpe) 18555.0 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 17669.9 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 QCISD/6-31G*
ABC
1.03230 0.15314 0.14060

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.446 0.583 0.000
O2 0.446 -0.583 0.000
C3 0.446 1.688 0.000
C4 -0.446 -1.688 0.000
H5 -0.204 2.569 0.000
H6 1.075 1.683 0.899
H7 1.075 1.683 -0.899
H8 0.204 -2.569 0.000
H9 -1.075 -1.683 0.899
H10 -1.075 -1.683 -0.899

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.46881.42012.27172.00062.08092.08093.21902.51752.5175
O21.46882.27171.42013.21902.51752.51752.00062.08092.0809
C31.42012.27173.49241.09491.09701.09704.26443.80593.8059
C42.27171.42013.49244.26443.80593.80591.09491.09701.0970
H52.00063.21901.09494.26441.79741.79745.15474.43224.4322
H62.08092.51751.09703.80591.79741.79704.43223.99374.3794
H72.08092.51751.09703.80591.79741.79704.43224.37943.9937
H83.21902.00064.26441.09495.15474.43224.43221.79741.7974
H92.51752.08093.80591.09704.43223.99374.37941.79741.7970
H102.51752.08093.80591.09704.43224.37943.99371.79741.7970

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 103.682 O1 C3 H5 104.660
O1 C3 H6 110.875 O1 C3 H7 110.875
O2 O1 C3 103.682 O2 C4 H8 104.660
O2 C4 H9 110.875 O2 C4 H10 110.875
H5 C3 H6 110.174 H5 C3 H7 110.174
H6 C3 H7 109.974 H8 C4 H9 110.174
H8 C4 H10 110.174 H9 C4 H10 109.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability