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: B1B95/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/cc-pVTZ
 hartrees
Energy at 0K-190.849756
Energy at 298.15K-190.854530
Nuclear repulsion energy81.809975
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 B1B95/cc-pVTZ
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 3814 3651 36.58      
2 A 3140 3006 16.28      
3 A 3103 2970 44.52      
4 A 3031 2901 40.10      
5 A 1513 1448 9.80      
6 A 1465 1402 6.58      
7 A 1450 1388 1.42      
8 A 1391 1331 48.45      
9 A 1219 1167 7.36      
10 A 1178 1127 2.14      
11 A 1083 1037 16.07      
12 A 927 887 19.57      
13 A 451 431 5.70      
14 A 252 241 14.34      
15 A 199 190 104.47      

Unscaled Zero Point Vibrational Energy (zpe) 12107.3 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 11587.9 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 B1B95/cc-pVTZ
ABC
1.46833 0.35622 0.31114

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.114 -0.223 0.021
O2 -0.021 0.603 -0.018
O3 -1.151 -0.267 -0.102
H4 1.960 0.462 0.032
H5 1.130 -0.841 0.919
H6 1.169 -0.858 -0.863
H7 -1.565 -0.112 0.753

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40372.26931.08811.09131.08962.7789
O21.40371.42901.98612.07132.06471.8677
O32.26931.42903.19832.56522.51280.9623
H41.08811.98613.19831.78161.77973.6425
H51.09132.07132.56521.78161.78292.7968
H61.08962.06472.51281.77971.78293.2621
H72.77891.86770.96233.64252.79683.2621

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 106.463 O2 C1 H4 104.991
O2 C1 H5 111.618 O2 C1 H6 111.179
O2 O3 H7 100.900 H4 C1 H5 109.668
H4 C1 H6 109.613 H5 C1 H6 109.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.102      
2 O -0.174      
3 O -0.235      
4 H 0.105      
5 H 0.076      
6 H 0.093      
7 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.687 -0.611 1.431 1.700
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.135 -0.171 -2.621
y -0.171 -19.496 -0.067
z -2.621 -0.067 -17.411
Traceless
 xyz
x 3.318 -0.171 -2.621
y -0.171 -3.223 -0.067
z -2.621 -0.067 -0.096
Polar
3z2-r2-0.191
x2-y24.361
xy-0.171
xz-2.621
yz-0.067


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.457 0.231 -0.162
y 0.231 3.124 0.013
z -0.162 0.013 3.108


<r2> (average value of r2) Å2
<r2> 45.516
(<r2>)1/2 6.747