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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: LSDA/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 LSDA/6-31+G**
 hartrees
Energy at 0K-229.010730
Energy at 298.15K-229.017695
Nuclear repulsion energy134.540028
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/6-31+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 3076 3030 0.00      
2 Ag 2939 2895 0.00      
3 Ag 1456 1434 0.00      
4 Ag 1378 1357 0.00      
5 Ag 1237 1219 0.00      
6 Ag 1064 1048 0.00      
7 Ag 839 827 0.00      
8 Ag 485 478 0.00      
9 Au 3007 2962 73.34      
10 Au 1381 1360 23.24      
11 Au 1131 1114 0.27      
12 Au 205 202 5.31      
13 Au 49 48 11.68      
14 Bg 3007 2962 0.00      
15 Bg 1379 1358 0.00      
16 Bg 1136 1119 0.00      
17 Bg 264 260 0.00      
18 Bu 3075 3029 11.63      
19 Bu 2935 2891 102.04      
20 Bu 1448 1426 32.34      
21 Bu 1370 1350 1.05      
22 Bu 1134 1117 56.95      
23 Bu 1083 1066 47.87      
24 Bu 299 295 14.67      

Unscaled Zero Point Vibrational Energy (zpe) 17689.5 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 17424.2 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/6-31+G**
ABC
1.05338 0.15568 0.14327

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.436 0.582 0.000
O2 0.436 -0.582 0.000
C3 0.436 1.670 0.000
C4 -0.436 -1.670 0.000
H5 -0.224 2.554 0.000
H6 1.073 1.682 0.906
H7 1.073 1.682 -0.906
H8 0.224 -2.554 0.000
H9 -1.073 -1.682 0.906
H10 -1.073 -1.682 -0.906

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.45351.39402.25161.98322.07532.07533.20392.52022.5202
O21.45352.25161.39403.20392.52022.52021.98322.07532.0753
C31.39402.25163.45161.10271.10781.10784.22883.78583.7858
C42.25161.39403.45164.22883.78583.78581.10271.10781.1078
H51.98323.20391.10274.22881.80621.80625.12684.41384.4138
H62.07532.52021.10783.78581.80621.81234.41383.99004.3823
H72.07532.52021.10783.78581.80621.81234.41384.38233.9900
H83.20391.98324.22881.10275.12684.41384.41381.80621.8062
H92.52022.07533.78581.10784.41383.99004.38231.80621.8123
H102.52022.07533.78581.10784.41384.38233.99001.80621.8123

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 104.490 O1 C3 H5 104.577
O1 C3 H6 111.592 O1 C3 H7 111.592
O2 O1 C3 104.490 O2 C4 H8 104.577
O2 C4 H9 111.592 O2 C4 H10 111.592
H5 C3 H6 109.588 H5 C3 H7 109.588
H6 C3 H7 109.772 H8 C4 H9 109.588
H8 C4 H10 109.588 H9 C4 H10 109.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.182      
2 O -0.182      
3 C -0.371      
4 C -0.371      
5 H 0.190      
6 H 0.181      
7 H 0.181      
8 H 0.190      
9 H 0.181      
10 H 0.181      


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 -26.482 1.705 0.000
y 1.705 -18.889 0.000
z 0.000 0.000 -25.914
Traceless
 xyz
x -4.080 1.705 0.000
y 1.705 7.309 0.000
z 0.000 0.000 -3.229
Polar
3z2-r2-6.458
x2-y2-7.593
xy1.705
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.159 0.357 0.000
y 0.357 7.381 0.000
z 0.000 0.000 4.905


<r2> (average value of r2) Å2
<r2> 91.379
(<r2>)1/2 9.559