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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-228.204635
Energy at 298.15K-228.210729
HF Energy-228.204635
Nuclear repulsion energy122.527226
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 HF/LANL2DZ
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' 3308 2977 53.35      
2 A' 3268 2941 29.76      
3 A' 3218 2896 30.67      
4 A' 1671 1504 8.89      
5 A' 1649 1484 6.64      
6 A' 1578 1420 18.93      
7 A' 1538 1384 11.47      
8 A' 1249 1124 22.78      
9 A' 1142 1028 60.39      
10 A' 1056 950 21.77      
11 A' 907 817 9.88      
12 A' 514 463 6.74      
13 A' 318 286 1.26      
14 A" 3339 3005 81.06      
15 A" 3311 2979 5.53      
16 A" 1634 1470 8.62      
17 A" 1406 1265 0.24      
18 A" 1289 1160 8.67      
19 A" 902 811 1.14      
20 A" 241 217 1.11      
21 A" 97 87 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 16817.5 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 15134.1 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 HF/LANL2DZ
ABC
1.11184 0.14380 0.13363

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.501 0.929 0.000
C2 0.000 0.688 0.000
O3 -0.192 -0.761 0.000
O4 -1.516 -1.097 0.000
H5 1.699 1.994 0.000
H6 1.959 0.493 0.878
H7 1.959 0.493 -0.878
H8 -0.478 1.090 -0.882
H9 -0.478 1.090 0.882

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51972.39193.63391.08371.08211.08212.17212.1721
C21.51971.46212.34222.14312.15572.15571.08021.0802
O32.39191.46211.36633.34202.63992.63992.07002.0700
O43.63392.34221.36634.46033.92113.92112.57602.5760
H51.08372.14313.34204.46031.75881.75882.51712.5171
H61.08212.15572.63993.92111.75881.75513.06462.5094
H71.08212.15572.63993.92111.75881.75512.50943.0646
H82.17211.08022.07002.57602.51713.06462.50941.7633
H92.17211.08022.07002.57602.51712.50943.06461.7633

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 106.652 C1 C2 H8 112.217
C1 C2 H9 112.217 C2 C1 H5 109.672
C2 C1 H6 110.771 C2 C1 H7 110.771
C2 O3 O4 111.759 O3 C2 H8 108.076
O3 C2 H9 108.076 H5 C1 H6 108.594
H5 C1 H7 108.594 H6 C1 H7 108.377
H8 C2 H9 109.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.537      
2 C -0.060      
3 O -0.292      
4 O -0.049      
5 H 0.174      
6 H 0.198      
7 H 0.198      
8 H 0.184      
9 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.984 2.870 0.000 3.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.441 -0.740 0.000
y -0.740 -25.895 0.000
z 0.000 0.000 -23.294
Traceless
 xyz
x -0.847 -0.740 0.000
y -0.740 -1.527 0.000
z 0.000 0.000 2.374
Polar
3z2-r24.747
x2-y20.453
xy-0.740
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.967 0.908 0.000
y 0.908 3.990 0.000
z 0.000 0.000 3.298


<r2> (average value of r2) Å2
<r2> 90.968
(<r2>)1/2 9.538