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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: ROHF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/6-311G*
 hartrees
Energy at 0K-228.297871
Energy at 298.15K-228.304100
HF Energy-228.297871
Nuclear repulsion energy125.589281
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 ROHF/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 A' 3261 2790 50.49      
2 A' 3226 2760 23.24      
3 A' 3195 2734 23.69      
4 A' 1663 1423 4.12      
5 A' 1633 1397 2.34      
6 A' 1572 1345 26.86      
7 A' 1528 1307 4.16      
8 A' 1299 1111 88.93      
9 A' 1263 1081 22.35      
10 A' 1125 962 19.44      
11 A' 961 823 7.34      
12 A' 554 474 7.90      
13 A' 338 289 1.29      
14 A" 3284 2809 83.59      
15 A" 3256 2786 0.57      
16 A" 1618 1384 5.61      
17 A" 1415 1211 1.37      
18 A" 1289 1103 6.05      
19 A" 877 750 0.13      
20 A" 258 221 0.73      
21 A" 108 92 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 16860.4 cm-1
Scaled (by 0.8556) Zero Point Vibrational Energy (zpe) 14425.8 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 ROHF/6-311G*
ABC
1.14902 0.15127 0.14063

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.496 0.877 0.000
C2 0.000 0.659 0.000
O3 -0.224 -0.746 0.000
O4 -1.483 -1.027 0.000
H5 1.715 1.939 0.000
H6 1.950 0.434 0.879
H7 1.950 0.434 -0.879
H8 -0.470 1.079 -0.880
H9 -0.470 1.079 0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51182.36433.53531.08431.08341.08342.16332.1633
C21.51181.42272.24562.13932.15082.15081.08241.0824
O32.36431.42271.29023.31102.62492.62492.04072.0407
O43.53532.24561.29024.36113.83323.83322.49732.4973
H51.08432.13933.31104.36111.75811.75812.50702.5070
H61.08342.15082.62493.83321.75811.75713.06022.5042
H71.08342.15082.62493.83321.75811.75712.50423.0602
H82.16331.08242.04072.49732.50703.06022.50421.7609
H92.16331.08242.04072.49732.50702.50423.06021.7609

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.312 C1 C2 H8 111.935
C1 C2 H9 111.935 C2 C1 H5 109.894
C2 C1 H6 110.861 C2 C1 H7 110.861
C2 O3 O4 111.641 O3 C2 H8 108.333
O3 C2 H9 108.333 H5 C1 H6 108.392
H5 C1 H7 108.392 H6 C1 H7 108.362
H8 C2 H9 108.860
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.652      
2 C -0.120      
3 O -0.245      
4 O -0.071      
5 H 0.217      
6 H 0.227      
7 H 0.227      
8 H 0.210      
9 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.086 2.299 0.000 2.543
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.538 -0.757 0.000
y -0.757 -25.260 0.000
z 0.000 0.000 -23.215
Traceless
 xyz
x -1.300 -0.757 0.000
y -0.757 -0.884 0.000
z 0.000 0.000 2.184
Polar
3z2-r24.368
x2-y2-0.278
xy-0.757
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 87.482
(<r2>)1/2 9.353