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: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-190.730061
Energy at 298.15K-190.734716
HF Energy-190.730061
Nuclear repulsion energy80.424738
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 PBEPBE/Def2TZVPP
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 3649 3604 24.22      
2 A 3038 3001 13.92      
3 A 2999 2963 44.84      
4 A 2931 2896 40.69      
5 A 1458 1441 9.98      
6 A 1401 1384 6.56      
7 A 1390 1373 0.24      
8 A 1314 1298 42.28      
9 A 1165 1150 6.20      
10 A 1130 1116 1.51      
11 A 987 975 15.50      
12 A 835 825 15.40      
13 A 431 426 6.67      
14 A 250 247 10.00      
15 A 179 177 100.28      

Unscaled Zero Point Vibrational Energy (zpe) 11577.8 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 11437.7 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 PBEPBE/Def2TZVPP
ABC
1.41766 0.34410 0.30032

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.132 -0.220 0.023
O2 -0.023 0.600 -0.022
O3 -1.167 -0.271 -0.100
H4 1.975 0.484 0.035
H5 1.160 -0.845 0.931
H6 1.205 -0.863 -0.868
H7 -1.620 -0.084 0.740

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41712.30291.09771.10301.10142.8476
O21.41711.44002.00152.09622.08941.8973
O32.30291.44003.23362.60872.56260.9730
H41.09772.00153.23361.79821.79513.7071
H51.10302.09622.60871.79821.79992.8886
H61.10142.08942.56261.79511.79993.3432
H72.84761.89730.97303.70712.88863.3432

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 107.412 O2 C1 H4 104.762
O2 C1 H5 111.967 O2 C1 H6 111.501
O2 O3 H7 101.931 H4 C1 H5 109.593
H4 C1 H6 109.422 H5 C1 H6 109.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 O -0.175      
3 O -0.211      
4 H 0.105      
5 H 0.085      
6 H 0.107      
7 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.723 -0.565 1.403 1.676
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.494 -0.173 -2.625
y -0.173 -19.857 -0.003
z -2.625 -0.003 -17.788
Traceless
 xyz
x 3.329 -0.173 -2.625
y -0.173 -3.216 -0.003
z -2.625 -0.003 -0.113
Polar
3z2-r2-0.226
x2-y24.363
xy-0.173
xz-2.625
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.915 0.190 -0.153
y 0.190 3.433 0.007
z -0.153 0.007 3.434


<r2> (average value of r2) Å2
<r2> 46.917
(<r2>)1/2 6.850