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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: B3PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-227.113575
Energy at 298.15K-227.120247
Nuclear repulsion energy130.978634
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/STO-3G
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 3466 3067 0.00      
2 Ag 3261 2886 0.00      
3 Ag 1673 1480 0.00      
4 Ag 1575 1393 0.00      
5 Ag 1361 1204 0.00      
6 Ag 1233 1091 0.00      
7 Ag 986 872 0.00      
8 Ag 498 440 0.00      
9 Au 3412 3019 15.21      
10 Au 1629 1442 7.60      
11 Au 1171 1036 0.61      
12 Au 173 153 1.69      
13 Au 18 16 6.09      
14 Bg 3411 3019 0.00      
15 Bg 1629 1442 0.00      
16 Bg 1175 1040 0.00      
17 Bg 215 190 0.00      
18 Bu 3466 3067 3.36      
19 Bu 3260 2885 17.99      
20 Bu 1668 1476 17.19      
21 Bu 1554 1375 11.93      
22 Bu 1201 1063 1.87      
23 Bu 1117 989 11.99      
24 Bu 309 273 4.18      

Unscaled Zero Point Vibrational Energy (zpe) 19728.9 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 17460.1 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 B3PW91/STO-3G
ABC
0.98656 0.14842 0.13582

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.463 0.573 0.000
O2 0.463 -0.573 0.000
C3 0.463 1.716 0.000
C4 -0.463 -1.716 0.000
H5 -0.174 2.619 0.000
H6 1.111 1.729 0.901
H7 1.111 1.729 -0.901
H8 0.174 -2.619 0.000
H9 -1.111 -1.729 0.901
H10 -1.111 -1.729 -0.901

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.47431.47152.28922.06582.15082.15083.25502.55542.5554
O21.47432.28921.47153.25502.55542.55542.06582.15082.1508
C31.47152.28923.55501.10531.10981.10984.34443.89313.8931
C42.28921.47153.55504.34443.89313.89311.10531.10981.1098
H52.06583.25501.10534.34441.80451.80455.24904.53754.5375
H62.15082.55541.10983.89311.80451.80294.53754.10954.4876
H72.15082.55541.10983.89311.80451.80294.53754.48764.1095
H83.25502.06584.34441.10535.24904.53754.53751.80451.8045
H92.55542.15083.89311.10984.53754.10954.48761.80451.8029
H102.55542.15083.89311.10984.53754.48764.10951.80451.8029

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 101.997 O1 C3 H5 105.709
O1 C3 H6 112.100 O1 C3 H7 112.100
O2 O1 C3 101.997 O2 C4 H8 105.709
O2 C4 H9 112.100 O2 C4 H10 112.100
H5 C3 H6 109.101 H5 C3 H7 109.101
H6 C3 H7 108.635 H8 C4 H9 109.101
H8 C4 H10 109.101 H9 C4 H10 108.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.114      
2 O -0.114      
3 C -0.146      
4 C -0.146      
5 H 0.092      
6 H 0.084      
7 H 0.084      
8 H 0.092      
9 H 0.084      
10 H 0.084      


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 -23.103 1.342 0.000
y 1.342 -18.534 0.000
z 0.000 0.000 -22.855
Traceless
 xyz
x -2.408 1.342 0.000
y 1.342 4.445 0.000
z 0.000 0.000 -2.037
Polar
3z2-r2-4.074
x2-y2-4.569
xy1.342
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.168 0.231 0.000
y 0.231 4.171 0.000
z 0.000 0.000 1.728


<r2> (average value of r2) Å2
<r2> 93.950
(<r2>)1/2 9.693