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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: MP2/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 MP2/STO-3G
 hartrees
Energy at 0K-226.126303
Energy at 298.15K-226.133108
Nuclear repulsion energy131.352967
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/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 3529 3077 0.00      
2 Ag 3328 2902 0.00      
3 Ag 1719 1499 0.00      
4 Ag 1623 1415 0.00      
5 Ag 1370 1195 0.00      
6 Ag 1285 1120 0.00      
7 Ag 1008 879 0.00      
8 Ag 517 451 0.00      
9 Au 3493 3046 15.44      
10 Au 1685 1469 2.68      
11 Au 1208 1054 3.80      
12 Au 182 159 1.24      
13 Au 40 35 5.87      
14 Bg 3493 3045 0.00      
15 Bg 1685 1469 0.00      
16 Bg 1212 1057 0.00      
17 Bg 223 194 0.00      
18 Bu 3529 3077 2.94      
19 Bu 3327 2901 14.86      
20 Bu 1716 1496 9.16      
21 Bu 1605 1399 21.98      
22 Bu 1233 1075 0.32      
23 Bu 1167 1017 6.55      
24 Bu 322 280 3.64      

Unscaled Zero Point Vibrational Energy (zpe) 20249.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 17655.3 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 MP2/STO-3G
ABC
0.98834 0.14973 0.13697

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.463 0.566 0.000
O2 0.463 -0.566 0.000
C3 0.463 1.709 0.000
C4 -0.463 -1.709 0.000
H5 -0.169 2.619 0.000
H6 1.112 1.716 0.903
H7 1.112 1.716 -0.903
H8 0.169 -2.619 0.000
H9 -1.112 -1.716 0.903
H10 -1.112 -1.716 -0.903

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.46291.47112.27472.07412.14922.14923.24722.53842.5384
O21.46292.27471.47113.24722.53842.53842.07412.14922.1492
C31.47112.27473.54081.10821.11161.11164.33783.87623.8762
C42.27471.47113.54084.33783.87623.87621.10821.11161.1116
H52.07413.24721.10824.33781.80841.80845.24904.52754.5275
H62.14922.53841.11163.87621.80841.80514.52754.08984.4704
H72.14922.53841.11163.87621.80841.80514.52754.47044.0898
H83.24722.07414.33781.10825.24904.52754.52751.80841.8084
H92.53842.14923.87621.11164.52754.08984.47041.80841.8051
H102.53842.14923.87621.11164.52754.47044.08981.80841.8051

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 101.666 O1 C3 H5 106.201
O1 C3 H6 111.885 O1 C3 H7 111.885
O2 O1 C3 101.666 O2 C4 H8 106.201
O2 C4 H9 111.885 O2 C4 H10 111.885
H5 C3 H6 109.113 H5 C3 H7 109.113
H6 C3 H7 108.568 H8 C4 H9 109.113
H8 C4 H10 109.113 H9 C4 H10 108.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability