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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-230.135573
Energy at 298.15K-230.142548
Nuclear repulsion energy134.207130
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 B3PW91/6-311G**
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 3131 3016 0.00      
2 Ag 3013 2902 0.00      
3 Ag 1516 1460 0.00      
4 Ag 1449 1395 0.00      
5 Ag 1272 1225 0.00      
6 Ag 1084 1044 0.00      
7 Ag 854 823 0.00      
8 Ag 489 471 0.00      
9 Au 3078 2964 100.07      
10 Au 1450 1397 15.08      
11 Au 1172 1129 1.34      
12 Au 207 199 3.53      
13 Au 23 22 11.28      
14 Bg 3078 2964 0.00      
15 Bg 1449 1395 0.00      
16 Bg 1178 1134 0.00      
17 Bg 263 253 0.00      
18 Bu 3131 3015 30.73      
19 Bu 3009 2898 102.66      
20 Bu 1509 1453 27.14      
21 Bu 1440 1387 3.11      
22 Bu 1173 1130 14.54      
23 Bu 1075 1035 107.45      
24 Bu 302 291 11.53      

Unscaled Zero Point Vibrational Energy (zpe) 18171.6 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 17501.0 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 B3PW91/6-311G**
ABC
1.06558 0.15366 0.14161

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.435 0.581 0.000
O2 0.435 -0.581 0.000
C3 0.435 1.685 0.000
C4 -0.435 -1.685 0.000
H5 -0.223 2.557 0.000
H6 1.065 1.698 0.897
H7 1.065 1.698 -0.897
H8 0.223 -2.557 0.000
H9 -1.065 -1.698 0.897
H10 -1.065 -1.698 -0.897

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.45191.40552.26671.98742.07372.07373.20682.52892.5289
O21.45192.26671.40553.20682.52892.52891.98742.07372.0737
C31.40552.26673.48121.09231.09601.09604.24803.80783.8078
C42.26671.40553.48124.24803.80783.80781.09231.09601.0960
H51.98743.20681.09234.24801.78941.78945.13404.42934.4293
H62.07372.52891.09603.80781.78941.79344.42934.00834.3913
H72.07372.52891.09603.80781.78941.79344.42934.39134.0083
H83.20681.98744.24801.09235.13404.42934.42931.78941.7894
H92.52892.07373.80781.09604.42934.00834.39131.78941.7934
H102.52892.07373.80781.09604.42934.39134.00831.78941.7934

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.968 O1 C3 H5 104.736
O1 C3 H6 111.387 O1 C3 H7 111.387
O2 O1 C3 104.968 O2 C4 H8 104.736
O2 C4 H9 111.387 O2 C4 H10 111.387
H5 C3 H6 109.709 H5 C3 H7 109.709
H6 C3 H7 109.796 H8 C4 H9 109.709
H8 C4 H10 109.709 H9 C4 H10 109.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.247      
2 O -0.247      
3 C -0.104      
4 C -0.104      
5 H 0.126      
6 H 0.113      
7 H 0.113      
8 H 0.126      
9 H 0.113      
10 H 0.113      


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 -25.573 1.745 0.000
y 1.745 -18.556 0.000
z 0.000 0.000 -25.135
Traceless
 xyz
x -3.727 1.745 0.000
y 1.745 6.798 0.000
z 0.000 0.000 -3.071
Polar
3z2-r2-6.141
x2-y2-7.017
xy1.745
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.450 0.274 0.000
y 0.274 6.752 0.000
z 0.000 0.000 4.158


<r2> (average value of r2) Å2
<r2> 91.670
(<r2>)1/2 9.574