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

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-190.327755
Energy at 298.15K-190.332433
HF Energy-189.790550
Nuclear repulsion energy80.291393
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 MP4/6-31G*
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 3694 3527        
2 A 3161 3018        
3 A 3134 2992        
4 A 3050 2912        
5 A 1554 1484        
6 A 1511 1442        
7 A 1485 1417        
8 A 1376 1313        
9 A 1214 1159        
10 A 1188 1134        
11 A 1056 1008        
12 A 834 796        
13 A 445 425        
14 A 261 250        
15 A 163 155        

Unscaled Zero Point Vibrational Energy (zpe) 12061.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 11516.6 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 MP4/6-31G*
ABC
1.38138 0.34764 0.30017

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 -0.234 0.027
O2 -0.009 0.626 -0.032
O3 -1.166 -0.292 -0.092
H4 1.984 0.450 0.024
H5 1.124 -0.836 0.946
H6 1.166 -0.891 -0.850
H7 -1.633 0.008 0.713

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42632.29731.09641.09851.09722.8547
O21.42631.47872.00202.09262.08661.8910
O32.29731.47873.23902.57272.52470.9779
H41.09642.00203.23901.80111.79793.7092
H51.09852.09262.57271.80111.79752.8931
H61.09722.08662.52471.79791.79753.3301
H72.85471.89100.97793.70922.89313.3301

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 104.508 O2 C1 H4 104.280
O2 C1 H5 111.292 O2 C1 H6 110.885
O2 O3 H7 98.608 H4 C1 H5 110.282
H4 C1 H6 110.089 H5 C1 H6 109.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP4/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.143      
2 O -0.360      
3 O -0.468      
4 H 0.176      
5 H 0.158      
6 H 0.176      
7 H 0.462      


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> 46.511
(<r2>)1/2 6.820