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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-230.096347
Energy at 298.15K-230.103340
Nuclear repulsion energy134.587395
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 mPW1PW91/6-31G*
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 3176 3012 0.00      
2 Ag 3058 2900 0.00      
3 Ag 1556 1475 0.00      
4 Ag 1484 1407 0.00      
5 Ag 1296 1229 0.00      
6 Ag 1124 1066 0.00      
7 Ag 884 839 0.00      
8 Ag 498 472 0.00      
9 Au 3127 2966 96.17      
10 Au 1495 1418 10.58      
11 Au 1195 1133 1.16      
12 Au 213 202 3.79      
13 Au 12 12 11.14      
14 Bg 3127 2965 0.00      
15 Bg 1495 1417 0.00      
16 Bg 1201 1139 0.00      
17 Bg 272 258 0.00      
18 Bu 3176 3012 32.42      
19 Bu 3055 2897 96.25      
20 Bu 1548 1468 25.79      
21 Bu 1474 1397 6.86      
22 Bu 1195 1133 14.49      
23 Bu 1107 1050 106.89      
24 Bu 309 293 11.39      

Unscaled Zero Point Vibrational Energy (zpe) 18538.1 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 17579.7 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 mPW1PW91/6-31G*
ABC
1.06592 0.15499 0.14273

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.435 0.577 0.000
O2 0.435 -0.577 0.000
C3 0.435 1.678 0.000
C4 -0.435 -1.678 0.000
H5 -0.221 2.551 0.000
H6 1.067 1.689 0.896
H7 1.067 1.689 -0.896
H8 0.221 -2.551 0.000
H9 -1.067 -1.689 0.896
H10 -1.067 -1.689 -0.896

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.44531.40312.25481.98612.07202.07203.19652.51702.5170
O21.44532.25481.40313.19652.51702.51701.98612.07202.0720
C31.40312.25483.46651.09241.09601.09604.23473.79353.7935
C42.25481.40313.46654.23473.79353.79351.09241.09601.0960
H51.98613.19651.09244.23471.78981.78985.12204.41574.4157
H62.07202.51701.09603.79351.78981.79164.41573.99484.3781
H72.07202.51701.09603.79351.78981.79164.41574.37813.9948
H83.19651.98614.23471.09245.12204.41574.41571.78981.7898
H92.51702.07203.79351.09604.41573.99484.37811.78981.7916
H102.51702.07203.79351.09604.41574.37813.99481.78981.7916

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.657 O1 C3 H5 104.788
O1 C3 H6 111.421 O1 C3 H7 111.421
O2 O1 C3 104.657 O2 C4 H8 104.788
O2 C4 H9 111.421 O2 C4 H10 111.421
H5 C3 H6 109.737 H5 C3 H7 109.737
H6 C3 H7 109.631 H8 C4 H9 109.737
H8 C4 H10 109.737 H9 C4 H10 109.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.285      
2 O -0.285      
3 C -0.245      
4 C -0.245      
5 H 0.186      
6 H 0.172      
7 H 0.172      
8 H 0.186      
9 H 0.172      
10 H 0.172      


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 -25.207 1.712 0.000
y 1.712 -18.348 0.000
z 0.000 0.000 -24.914
Traceless
 xyz
x -3.576 1.712 0.000
y 1.712 6.712 0.000
z 0.000 0.000 -3.136
Polar
3z2-r2-6.273
x2-y2-6.859
xy1.712
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.109 0.166 0.000
y 0.166 6.309 0.000
z 0.000 0.000 3.869


<r2> (average value of r2) Å2
<r2> 90.945
(<r2>)1/2 9.537