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All results from a given calculation for CH3OOH (Methyl peroxide)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-39.325720
Energy at 298.15K-39.330219
HF Energy-39.011296
Nuclear repulsion energy46.495343
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/CEP-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 A 3612 3491 14.17      
2 A 3189 3082 34.20      
3 A 3175 3068 63.80      
4 A 3049 2946 40.70      
5 A 1539 1487 8.19      
6 A 1489 1438 5.34      
7 A 1462 1413 0.29      
8 A 1306 1262 51.01      
9 A 1146 1107 16.31      
10 A 1145 1107 0.12      
11 A 969 937 25.10      
12 A 765 739 4.87      
13 A 385 372 21.78      
14 A 223 216 47.88      
15 A 150 145 177.12      

Unscaled Zero Point Vibrational Energy (zpe) 11802.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 11404.2 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/CEP-31G
ABC
1.29698 0.32350 0.27299

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.186 -0.239 0.000
O2 0.005 0.655 -0.000
O3 1.194 -0.357 -0.000
H4 -2.035 0.472 -0.000
H5 -1.186 -0.865 -0.913
H6 -1.186 -0.865 0.913
H7 1.936 0.306 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.48922.38331.10671.10691.10693.1700
O21.48921.56152.04782.13602.13601.9629
O32.38331.56153.33352.59932.59930.9956
H41.10672.04783.33351.82781.82783.9747
H51.10692.13602.59931.82781.82513.4578
H61.10692.13602.59931.82781.82513.4577
H73.17001.96290.99563.97473.45783.4577

picture of Methyl peroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 102.721 O2 C1 H4 103.170
O2 C1 H5 109.849 O2 C1 H6 109.849
O2 O3 H7 97.823 H4 C1 H5 111.317
H4 C1 H6 111.321 H5 C1 H6 111.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.221      
2 O -0.239      
3 O -0.371      
4 H 0.166      
5 H 0.152      
6 H 0.152      
7 H 0.361      


Electric dipole moments


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000