return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-187.352650
Energy at 298.15K-187.357181
Nuclear repulsion energy81.390984
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 HF/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 A 4175 3409 11.97      
2 A 3730 3045 0.34      
3 A 3705 3025 3.09      
4 A 3532 2884 2.71      
5 A 1813 1480 3.44      
6 A 1782 1455 2.33      
7 A 1753 1431 24.58      
8 A 1717 1402 3.19      
9 A 1538 1256 2.86      
10 A 1340 1094 4.12      
11 A 1297 1059 3.16      
12 A 1177 961 4.35      
13 A 502 410 5.92      
14 A 206 168 3.33      
15 A 82 67 91.67      

Unscaled Zero Point Vibrational Energy (zpe) 14174.2 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 11573.2 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 HF/STO-3G
ABC
1.48363 0.35776 0.30489

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.142 -0.190 -0.000
O2 -0.066 0.600 -0.000
O3 -1.102 -0.350 0.000
H4 1.975 0.515 -0.000
H5 1.206 -0.822 0.890
H6 1.205 -0.822 -0.890
H7 -1.891 0.264 -0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.44322.24911.09131.09371.09373.0661
O21.44321.40492.04282.10522.10521.8549
O32.24911.40493.19572.51772.51760.9996
H41.09132.04283.19571.78121.78123.8735
H51.09372.10522.51771.78121.77993.3997
H61.09372.10522.51761.78121.77993.3996
H73.06611.85490.99963.87353.39973.3996

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 104.308 O2 C1 H4 106.595
O2 C1 H5 111.422 O2 C1 H6 111.422
O2 O3 H7 99.587 H4 C1 H5 109.212
H4 C1 H6 109.213 H5 C1 H6 108.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.069      
2 O -0.150      
3 O -0.192      
4 H 0.077      
5 H 0.071      
6 H 0.071      
7 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.133 0.091 -0.000 0.161
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.693 -1.414 0.000
y -1.414 -17.568 0.000
z 0.000 0.000 -16.855
Traceless
 xyz
x 4.518 -1.414 0.000
y -1.414 -2.794 0.000
z 0.000 0.000 -1.724
Polar
3z2-r2-3.448
x2-y24.875
xy-1.414
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.807 0.004 0.000
y 0.004 1.311 -0.000
z 0.000 -0.000 0.879


<r2> (average value of r2) Å2
<r2> 45.100
(<r2>)1/2 6.716