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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-189.100168
Energy at 298.15K-189.104613
HF Energy-188.757251
Nuclear repulsion energy78.213037
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 MP2/3-21G
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 3432 3275 3.63      
2 A 3184 3039 17.68      
3 A 3167 3023 40.65      
4 A 3090 2950 18.15      
5 A 1623 1549 6.36      
6 A 1574 1502 3.47      
7 A 1506 1437 2.07      
8 A 1338 1277 52.56      
9 A 1178 1124 0.08      
10 A 1173 1120 17.44      
11 A 1014 968 13.00      
12 A 864 824 7.16      
13 A 402 384 19.43      
14 A 231 220 6.86      
15 A 67 64 164.33      

Unscaled Zero Point Vibrational Energy (zpe) 11920.1 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 11377.7 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 MP2/3-21G
ABC
1.28193 0.33800 0.28190

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.160 -0.235 0.000
O2 -0.011 0.664 -0.000
O3 -1.164 -0.366 -0.000
H4 2.019 0.440 -0.001
H5 1.165 -0.862 0.895
H6 1.164 -0.863 -0.894
H7 -1.902 0.311 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.47592.32741.09261.09261.09263.1095
O21.47591.54572.04232.12422.12411.9231
O32.32741.54573.28332.54392.54321.0007
H41.09262.04233.28331.79621.79623.9225
H51.09262.12422.54391.79621.78863.4027
H61.09262.12412.54321.79621.78863.4025
H73.10951.92311.00073.92253.40273.4025

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 100.730 O2 C1 H4 104.342
O2 C1 H5 110.697 O2 C1 H6 110.692
O2 O3 H7 95.709 H4 C1 H5 110.566
H4 C1 H6 110.569 H5 C1 H6 109.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 O -0.308      
3 O -0.360      
4 H 0.192      
5 H 0.187      
6 H 0.187      
7 H 0.367      


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> 48.074
(<r2>)1/2 6.934