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 CH3OOCH3 (dimethylperoxide)

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-230.089491
Energy at 298.15K-230.096325
HF Energy-230.089491
Nuclear repulsion energy131.543344
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/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 3043 3018 0.00      
2 Ag 2938 2914 0.00      
3 Ag 1512 1500 0.00      
4 Ag 1430 1419 0.00      
5 Ag 1230 1220 0.00      
6 Ag 995 986 0.00      
7 Ag 772 766 0.00      
8 Ag 456 452 0.00      
9 Au 2989 2965 122.02      
10 Au 1441 1429 7.14      
11 Au 1150 1140 0.78      
12 Au 207 205 3.75      
13 Au 24 24 9.51      
14 Bg 2989 2965 0.00      
15 Bg 1440 1429 0.00      
16 Bg 1155 1146 0.00      
17 Bg 262 260 0.00      
18 Bu 3042 3018 37.68      
19 Bu 2934 2910 111.31      
20 Bu 1505 1492 30.72      
21 Bu 1420 1408 10.17      
22 Bu 1139 1130 12.14      
23 Bu 1008 1000 83.78      
24 Bu 288 286 10.94      

Unscaled Zero Point Vibrational Energy (zpe) 17683.3 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 17540.1 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/6-31G*
ABC
1.00534 0.14826 0.13609

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.435 0.589 0.000
O2 0.435 -0.589 0.000
C3 0.435 1.715 0.000
C4 -0.435 -1.715 0.000
H5 -0.237 2.586 0.000
H6 1.076 1.741 0.901
H7 1.076 1.741 -0.901
H8 0.237 -2.586 0.000
H9 -1.076 -1.741 0.901
H10 -1.076 -1.741 -0.901

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.46491.42212.30442.00652.10262.10263.24602.57992.5799
O21.46492.30441.42213.24602.57992.57992.00652.10262.1026
C31.42212.30443.53821.10021.10651.10654.30563.87803.8780
C42.30441.42213.53824.30563.87803.87801.10021.10651.1065
H52.00653.24601.10024.30561.80281.80285.19414.49934.4993
H62.10262.57991.10653.87801.80281.80284.49934.09374.4731
H72.10262.57991.10653.87801.80281.80284.49934.47314.0937
H83.24602.00654.30561.10025.19414.49934.49931.80281.8028
H92.57992.10263.87801.10654.49934.09374.47311.80281.8028
H102.57992.10263.87801.10654.49934.47314.09371.80281.8028

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 105.907 O1 C3 H5 104.689
O1 C3 H6 111.910 O1 C3 H7 111.910
O2 O1 C3 105.907 O2 C4 H8 104.689
O2 C4 H9 111.910 O2 C4 H10 111.910
H5 C3 H6 109.566 H5 C3 H7 109.566
H6 C3 H7 109.100 H8 C4 H9 109.566
H8 C4 H10 109.566 H9 C4 H10 109.100
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.262      
2 O -0.262      
3 C -0.157      
4 C -0.157      
5 H 0.148      
6 H 0.136      
7 H 0.136      
8 H 0.148      
9 H 0.136      
10 H 0.136      


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 -25.367 1.602 0.000
y 1.602 -18.642 0.000
z 0.000 0.000 -25.186
Traceless
 xyz
x -3.452 1.602 0.000
y 1.602 6.634 0.000
z 0.000 0.000 -3.182
Polar
3z2-r2-6.363
x2-y2-6.724
xy1.602
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.336 0.324 0.000
y 0.324 7.065 0.000
z 0.000 0.000 3.990


<r2> (average value of r2) Å2
<r2> 94.575
(<r2>)1/2 9.725