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: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-190.809800
Energy at 298.15K-190.814556
Nuclear repulsion energy81.544248
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 mPW1PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3771 3613 38.90      
2 A 3160 3028 14.17      
3 A 3111 2981 46.65      
4 A 3028 2902 39.42      
5 A 1492 1430 11.43      
6 A 1439 1379 7.20      
7 A 1431 1372 2.23      
8 A 1389 1331 43.34      
9 A 1212 1161 8.10      
10 A 1164 1116 2.08      
11 A 1084 1039 16.77      
12 A 920 882 17.97      
13 A 456 437 5.77      
14 A 261 250 10.29      
15 A 183 175 111.54      

Unscaled Zero Point Vibrational Energy (zpe) 12050.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 11547.6 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 mPW1PW91/cc-pVDZ
ABC
1.45818 0.35448 0.30979

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.115 -0.221 0.022
O2 -0.022 0.602 -0.021
O3 -1.153 -0.270 -0.102
H4 1.966 0.475 0.034
H5 1.137 -0.847 0.931
H6 1.181 -0.866 -0.869
H7 -1.570 -0.096 0.757

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40522.27271.09911.10371.10172.7869
O21.40521.43061.99332.08572.07981.8672
O32.27271.43063.20992.57802.52870.9700
H41.09911.99333.20991.79951.79713.6540
H51.10372.08572.57801.79951.80022.8148
H61.10172.07982.52871.79711.80023.2870
H72.78691.86720.97003.65402.81483.2870

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 106.527 O2 C1 H4 104.824
O2 C1 H5 111.902 O2 C1 H6 111.547
O2 O3 H7 100.361 H4 C1 H5 109.552
H4 C1 H6 109.480 H5 C1 H6 109.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.092      
2 O -0.233      
3 O -0.166      
4 H 0.053      
5 H 0.029      
6 H 0.046      
7 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.618 -0.592 1.465 1.697
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.856 -0.221 -2.624
y -0.221 -19.231 -0.038
z -2.624 -0.038 -17.232
Traceless
 xyz
x 3.375 -0.221 -2.624
y -0.221 -3.187 -0.038
z -2.624 -0.038 -0.188
Polar
3z2-r2-0.376
x2-y24.375
xy-0.221
xz-2.624
yz-0.038


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.033 0.263 -0.207
y 0.263 2.665 0.028
z -0.207 0.028 2.677


<r2> (average value of r2) Å2
<r2> 45.580
(<r2>)1/2 6.751