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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-230.088475
Energy at 298.15K-230.095482
Nuclear repulsion energy133.931176
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 B3PW91/6-31+G**
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 3149 3024 0.00      
2 Ag 3030 2909 0.00      
3 Ag 1519 1458 0.00      
4 Ag 1452 1394 0.00      
5 Ag 1270 1219 0.00      
6 Ag 1086 1042 0.00      
7 Ag 856 822 0.00      
8 Ag 489 469 0.00      
9 Au 3104 2980 83.67      
10 Au 1460 1402 15.24      
11 Au 1173 1126 1.49      
12 Au 208 200 4.22      
13 Au 42 41 12.79      
14 Bg 3104 2980 0.00      
15 Bg 1459 1401 0.00      
16 Bg 1177 1130 0.00      
17 Bg 263 253 0.00      
18 Bu 3149 3024 25.76      
19 Bu 3027 2906 105.10      
20 Bu 1512 1452 27.39      
21 Bu 1443 1385 2.41      
22 Bu 1171 1124 15.52      
23 Bu 1077 1034 103.10      
24 Bu 305 292 12.92      

Unscaled Zero Point Vibrational Energy (zpe) 18261.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 17532.8 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 B3PW91/6-31+G**
ABC
1.05979 0.15307 0.14104

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.436 0.583 0.000
O2 0.436 -0.583 0.000
C3 0.436 1.689 0.000
C4 -0.436 -1.689 0.000
H5 -0.224 2.560 0.000
H6 1.066 1.700 0.898
H7 1.066 1.700 -0.898
H8 0.224 -2.560 0.000
H9 -1.066 -1.700 0.898
H10 -1.066 -1.700 -0.898

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.45601.40922.27161.98912.07642.07643.21182.53232.5323
O21.45602.27161.40923.21182.53232.53231.98912.07642.0764
C31.40922.27163.48881.09361.09681.09684.25463.81403.8140
C42.27161.40923.48884.25463.81403.81401.09361.09681.0968
H51.98913.21181.09364.25461.79211.79215.14044.43444.4344
H62.07642.53231.09683.81401.79211.79694.43444.01234.3963
H72.07642.53231.09683.81401.79211.79694.43444.39634.0123
H83.21181.98914.25461.09365.14044.43444.43441.79211.7921
H92.53232.07643.81401.09684.43444.01234.39631.79211.7969
H102.53232.07643.81401.09684.43444.39634.01231.79211.7969

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.884 O1 C3 H5 104.555
O1 C3 H6 111.287 O1 C3 H7 111.287
O2 O1 C3 104.884 O2 C4 H8 104.555
O2 C4 H9 111.287 O2 C4 H10 111.287
H5 C3 H6 109.793 H5 C3 H7 109.793
H6 C3 H7 109.995 H8 C4 H9 109.793
H8 C4 H10 109.793 H9 C4 H10 109.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.192      
2 O -0.192      
3 C -0.290      
4 C -0.290      
5 H 0.165      
6 H 0.159      
7 H 0.159      
8 H 0.165      
9 H 0.159      
10 H 0.159      


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 -25.981 1.860 0.000
y 1.860 -18.542 0.000
z 0.000 0.000 -25.439
Traceless
 xyz
x -3.990 1.860 0.000
y 1.860 7.168 0.000
z 0.000 0.000 -3.178
Polar
3z2-r2-6.356
x2-y2-7.439
xy1.860
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.847 0.218 0.000
y 0.218 7.002 0.000
z 0.000 0.000 4.569


<r2> (average value of r2) Å2
<r2> 92.101
(<r2>)1/2 9.597