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

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-229.297194
Energy at 298.15K-229.303152
HF Energy-229.297194
Nuclear repulsion energy124.356137
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 HSEh1PBE/6-31G*
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' 3172 3017 13.94      
2 A' 3100 2948 14.54      
3 A' 3089 2937 9.61      
4 A' 1533 1458 5.58      
5 A' 1521 1446 1.09      
6 A' 1444 1373 22.52      
7 A' 1395 1326 10.09      
8 A' 1263 1201 18.44      
9 A' 1161 1104 8.68      
10 A' 1057 1005 16.44      
11 A' 872 829 1.87      
12 A' 518 492 10.01      
13 A' 309 294 1.33      
14 A" 3180 3024 27.41      
15 A" 3153 2998 5.52      
16 A" 1512 1438 7.57      
17 A" 1291 1228 0.08      
18 A" 1166 1109 5.01      
19 A" 809 770 1.76      
20 A" 227 216 0.35      
21 A" 77 73 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 15923.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 15142.8 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 HSEh1PBE/6-31G*
ABC
1.12328 0.14870 0.13818

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.490 0.907 0.000
C2 0.000 0.670 0.000
O3 -0.211 -0.763 0.000
O4 -1.485 -1.053 0.000
H5 1.694 1.982 0.000
H6 1.956 0.470 0.888
H7 1.956 0.470 -0.888
H8 -0.492 1.073 -0.890
H9 -0.492 1.073 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50902.38403.56271.09431.09391.09392.17972.1797
C21.50901.44872.27462.14262.15772.15771.09421.0942
O32.38401.44871.30653.34142.64662.64662.05982.0598
O43.56272.27461.30654.39503.86623.86622.50932.5093
H51.09432.14263.34144.39501.77341.77342.52972.5297
H61.09392.15772.64663.86621.77341.77553.08572.5220
H71.09392.15772.64663.86621.77341.77552.52203.0857
H82.17971.09422.05982.50932.52973.08572.52201.7806
H92.17971.09422.05982.50932.52972.52203.08571.7806

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 107.399 C1 C2 H8 112.747
C1 C2 H9 112.747 C2 C1 H5 109.758
C2 C1 H6 110.978 C2 C1 H7 110.978
C2 O3 O4 111.183 O3 C2 H8 107.376
O3 C2 H9 107.376 H5 C1 H6 108.274
H5 C1 H7 108.274 H6 C1 H7 108.493
H8 C2 H9 108.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.551      
2 C -0.079      
3 O -0.172      
4 O -0.164      
5 H 0.189      
6 H 0.197      
7 H 0.197      
8 H 0.192      
9 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.579 2.407 0.000 2.878
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.347 -1.138 0.000
y -1.138 -24.823 0.000
z 0.000 0.000 -22.928
Traceless
 xyz
x -1.472 -1.138 0.000
y -1.138 -0.685 0.000
z 0.000 0.000 2.157
Polar
3z2-r24.314
x2-y2-0.524
xy-1.138
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.291 0.932 0.000
y 0.932 4.407 0.000
z 0.000 0.000 3.653


<r2> (average value of r2) Å2
<r2> 88.539
(<r2>)1/2 9.410