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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-229.009658
Energy at 298.15K-229.016586
Nuclear repulsion energy135.289276
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 LSDA/6-31G(2df,p)
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 3067 3018 0.00      
2 Ag 2925 2878 0.00      
3 Ag 1456 1433 0.00      
4 Ag 1372 1350 0.00      
5 Ag 1247 1227 0.00      
6 Ag 1080 1063 0.00      
7 Ag 863 849 0.00      
8 Ag 487 480 0.00      
9 Au 2985 2937 76.82      
10 Au 1372 1350 16.45      
11 Au 1134 1116 0.35      
12 Au 202 199 3.65      
13 Au 23 22 7.83      
14 Bg 2985 2937 0.00      
15 Bg 1370 1348 0.00      
16 Bg 1144 1125 0.00      
17 Bg 264 260 0.00      
18 Bu 3066 3017 11.88      
19 Bu 2921 2874 96.10      
20 Bu 1447 1424 29.75      
21 Bu 1363 1341 0.24      
22 Bu 1140 1122 62.48      
23 Bu 1092 1074 37.89      
24 Bu 300 295 11.42      

Unscaled Zero Point Vibrational Energy (zpe) 17652.4 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 17369.9 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 LSDA/6-31G(2df,p)
ABC
1.06174 0.15786 0.14520

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.433 0.575 0.000
O2 0.433 -0.575 0.000
C3 0.433 1.657 0.000
C4 -0.433 -1.657 0.000
H5 -0.219 2.546 0.000
H6 1.076 1.672 0.903
H7 1.076 1.672 -0.903
H8 0.219 -2.546 0.000
H9 -1.076 -1.672 0.903
H10 -1.076 -1.672 -0.903

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.44041.38592.23231.98242.07292.07293.18882.50592.5059
O21.44042.23231.38593.18882.50592.50591.98242.07292.0729
C31.38592.23233.42541.10251.10861.10864.20863.76523.7652
C42.23231.38593.42544.20863.76523.76521.10251.10861.1086
H51.98243.18881.10254.20861.80451.80455.11104.39824.3982
H62.07292.50591.10863.76521.80451.80554.39823.97734.3679
H72.07292.50591.10863.76521.80451.80554.39824.36793.9773
H83.18881.98244.20861.10255.11104.39824.39821.80451.8045
H92.50592.07293.76521.10864.39823.97734.36791.80451.8055
H102.50592.07293.76521.10864.39824.36793.97731.80451.8055

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.323 O1 C3 H5 105.056
O1 C3 H6 111.924 O1 C3 H7 111.924
O2 O1 C3 104.323 O2 C4 H8 105.056
O2 C4 H9 111.924 O2 C4 H10 111.924
H5 C3 H6 109.396 H5 C3 H7 109.396
H6 C3 H7 109.044 H8 C4 H9 109.396
H8 C4 H10 109.396 H9 C4 H10 109.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.124      
2 O -0.124      
3 C -0.334      
4 C -0.334      
5 H 0.168      
6 H 0.145      
7 H 0.145      
8 H 0.168      
9 H 0.145      
10 H 0.145      


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 -25.361 1.233 0.000
y 1.233 -19.158 0.000
z 0.000 0.000 -25.015
Traceless
 xyz
x -3.275 1.233 0.000
y 1.233 6.030 0.000
z 0.000 0.000 -2.756
Polar
3z2-r2-5.511
x2-y2-6.203
xy1.233
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.564 0.390 0.000
y 0.390 7.011 0.000
z 0.000 0.000 4.364


<r2> (average value of r2) Å2
<r2> 90.115
(<r2>)1/2 9.493