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

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 C1 1A
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-190.299736
Energy at 298.15K-190.304437
HF Energy-189.791819
Nuclear repulsion energy80.668238
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 A 3727 3511 37.87      
2 A 3219 3033 15.60      
3 A 3191 3007 38.56      
4 A 3099 2920 28.47      
5 A 1576 1485 7.50      
6 A 1532 1443 4.04      
7 A 1506 1419 1.83      
8 A 1389 1308 60.69      
9 A 1231 1159 5.56      
10 A 1205 1135 2.54      
11 A 1078 1016 23.20      
12 A 871 821 10.42      
13 A 451 425 9.22      
14 A 269 253 5.64      
15 A 156 147 138.02      

Unscaled Zero Point Vibrational Energy (zpe) 12248.9 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 11540.9 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 MP2=FULL/6-31G*
ABC
1.39756 0.35111 0.30292

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.123 -0.231 0.029
O2 -0.011 0.622 -0.035
O3 -1.158 -0.296 -0.088
H4 1.974 0.454 0.019
H5 1.123 -0.824 0.948
H6 1.164 -0.891 -0.841
H7 -1.647 0.041 0.687

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42032.28481.09201.09401.09312.8605
O21.42031.46981.99312.08412.07841.8801
O32.28481.46983.22222.56012.51220.9767
H41.09201.99313.22221.79411.79063.7054
H51.09402.08412.56011.79411.79052.9143
H61.09312.07842.51221.79061.79053.3328
H72.86051.88010.97673.70542.91433.3328

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 104.468 O2 C1 H4 104.233
O2 C1 H5 111.307 O2 C1 H6 110.903
O2 O3 H7 98.424 H4 C1 H5 110.310
H4 C1 H6 110.065 H5 C1 H6 109.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.194      
2 O -0.309      
3 O -0.433      
4 H 0.174      
5 H 0.154      
6 H 0.170      
7 H 0.438      


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> 46.272
(<r2>)1/2 6.802