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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-230.071374
Energy at 298.15K-230.078341
Nuclear repulsion energy134.167983
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3154 3017 0.00      
2 Ag 3037 2905 0.00      
3 Ag 1547 1480 0.00      
4 Ag 1474 1410 0.00      
5 Ag 1284 1229 0.00      
6 Ag 1103 1055 0.00      
7 Ag 867 830 0.00      
8 Ag 492 470 0.00      
9 Au 3104 2969 101.23      
10 Au 1485 1421 10.12      
11 Au 1187 1136 1.01      
12 Au 212 203 3.82      
13 Au 13 13 10.99      
14 Bg 3103 2969 0.00      
15 Bg 1484 1420 0.00      
16 Bg 1193 1141 0.00      
17 Bg 270 258 0.00      
18 Bu 3154 3017 33.57      
19 Bu 3033 2902 100.00      
20 Bu 1540 1473 26.45      
21 Bu 1464 1400 6.87      
22 Bu 1185 1134 13.70      
23 Bu 1093 1045 103.36      
24 Bu 306 292 11.42      

Unscaled Zero Point Vibrational Energy (zpe) 18391.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17594.9 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 B3PW91/6-31G*
ABC
1.05747 0.15407 0.14182

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.437 0.581 0.000
O2 0.437 -0.581 0.000
C3 0.437 1.682 0.000
C4 -0.437 -1.682 0.000
H5 -0.220 2.557 0.000
H6 1.070 1.694 0.897
H7 1.070 1.694 -0.897
H8 0.220 -2.557 0.000
H9 -1.070 -1.694 0.897
H10 -1.070 -1.694 -0.897

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.45421.40592.26311.98802.07722.07723.20622.52622.5262
O21.45422.26311.40593.20622.52622.52621.98802.07722.0772
C31.40592.26313.47591.09421.09791.09794.24473.80453.8045
C42.26311.40593.47594.24473.80453.80451.09421.09791.0979
H51.98803.20621.09424.24471.79241.79245.13314.42724.4272
H62.07722.52621.09793.80451.79241.79474.42724.00714.3907
H72.07722.52621.09793.80451.79241.79474.42724.39074.0071
H83.20621.98804.24471.09425.13314.42724.42721.79241.7924
H92.52622.07723.80451.09794.42724.00714.39071.79241.7947
H102.52622.07723.80451.09794.42724.39074.00711.79241.7947

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.591 O1 C3 H5 104.647
O1 C3 H6 111.522 O1 C3 H7 111.522
O2 O1 C3 104.591 O2 C4 H8 104.647
O2 C4 H9 111.522 O2 C4 H10 111.522
H5 C3 H6 109.701 H5 C3 H7 109.701
H6 C3 H7 109.632 H8 C4 H9 109.701
H8 C4 H10 109.701 H9 C4 H10 109.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.281      
2 O -0.281      
3 C -0.240      
4 C -0.240      
5 H 0.183      
6 H 0.169      
7 H 0.169      
8 H 0.183      
9 H 0.169      
10 H 0.169      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.212 1.696 0.000
y 1.696 -18.361 0.000
z 0.000 0.000 -24.934
Traceless
 xyz
x -3.564 1.696 0.000
y 1.696 6.712 0.000
z 0.000 0.000 -3.148
Polar
3z2-r2-6.295
x2-y2-6.851
xy1.696
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.155 0.189 0.000
y 0.189 6.418 0.000
z 0.000 0.000 3.903


<r2> (average value of r2) Å2
<r2> 91.419
(<r2>)1/2 9.561