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: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-189.756800
Energy at 298.15K-189.761309
Nuclear repulsion energy77.620776
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 BLYP/3-21G
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 3229 3212 2.35      
2 A 3030 3013 22.46      
3 A 3000 2984 59.41      
4 A 2945 2929 32.28      
5 A 1546 1537 10.01      
6 A 1487 1479 4.59      
7 A 1430 1422 2.28      
8 A 1260 1253 40.74      
9 A 1127 1121 2.55      
10 A 1108 1102 3.44      
11 A 938 933 7.07      
12 A 838 833 9.77      
13 A 393 390 11.64      
14 A 241 240 5.56      
15 A 127 126 121.45      

Unscaled Zero Point Vibrational Energy (zpe) 11349.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 11286.9 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 BLYP/3-21G
ABC
1.26224 0.32914 0.27949

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.160 -0.246 0.032
O2 -0.001 0.664 -0.042
O3 -1.197 -0.333 -0.076
H4 2.028 0.434 0.015
H5 1.160 -0.840 0.962
H6 1.200 -0.922 -0.839
H7 -1.764 0.154 0.616

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.47582.36091.10291.10371.10313.0078
O21.47581.55742.04262.14782.14261.9495
O32.36091.55743.31652.62482.58421.0184
H41.10292.04263.31651.80911.80313.8494
H51.10372.14782.62481.80911.80333.1069
H61.10312.14262.58421.80311.80333.4729
H73.00781.94951.01843.84943.10693.4729

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 102.185 O2 C1 H4 103.822
O2 C1 H5 111.935 O2 C1 H6 111.551
O2 O3 H7 96.118 H4 C1 H5 110.142
H4 C1 H6 109.647 H5 C1 H6 109.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.291      
2 O -0.267      
3 O -0.330      
4 H 0.190      
5 H 0.174      
6 H 0.188      
7 H 0.336      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.438 -0.212 1.248 1.339
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.536 -1.148 -2.265
y -1.148 -19.035 0.301
z -2.265 0.301 -17.794
Traceless
 xyz
x 4.879 -1.148 -2.265
y -1.148 -3.370 0.301
z -2.265 0.301 -1.509
Polar
3z2-r2-3.017
x2-y25.499
xy-1.148
xz-2.265
yz0.301


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.248 0.170 -0.352
y 0.170 2.498 0.172
z -0.352 0.172 2.196


<r2> (average value of r2) Å2
<r2> 48.642
(<r2>)1/2 6.974