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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-229.278646
Energy at 298.15K-229.284444
HF Energy-229.278646
Nuclear repulsion energy122.786483
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 PBEPBE/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' 3085 3042 11.54      
2 A' 3001 2960 13.05      
3 A' 2999 2958 9.94      
4 A' 1468 1448 5.54      
5 A' 1450 1431 0.67      
6 A' 1375 1356 17.26      
7 A' 1322 1304 13.87      
8 A' 1159 1143 7.58      
9 A' 1103 1087 2.07      
10 A' 990 977 11.40      
11 A' 798 787 0.51      
12 A' 488 481 9.18      
13 A' 292 288 1.22      
14 A" 3090 3048 21.13      
15 A" 3054 3012 8.57      
16 A" 1449 1429 6.92      
17 A" 1228 1211 0.01      
18 A" 1101 1086 4.23      
19 A" 776 765 2.41      
20 A" 210 207 0.25      
21 A" 69 68 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 15253.4 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 15044.4 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 PBEPBE/6-31G**
ABC
1.09815 0.14493 0.13464

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.935 0.000
C2 0.000 0.682 0.000
O3 -0.202 -0.779 0.000
O4 -1.497 -1.082 0.000
H5 1.688 2.019 0.000
H6 1.970 0.502 0.894
H7 1.970 0.502 -0.894
H8 -0.505 1.077 -0.897
H9 -0.505 1.077 0.897

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51642.41173.60831.10131.10091.10092.19712.1971
C21.51641.47492.31362.15342.17112.17111.10241.1024
O32.41171.47491.33013.37642.67522.67522.08322.0832
O43.60832.31361.33014.44523.91523.91522.53902.5390
H51.10132.15343.37644.44521.78341.78342.55042.5504
H61.10092.17112.67523.91521.78341.78733.10912.5418
H71.10092.17112.67523.91521.78341.78732.54183.1091
H82.19711.10242.08322.53902.55043.10912.54181.7937
H92.19711.10242.08322.53902.55042.54183.10911.7937

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 107.447 C1 C2 H8 113.109
C1 C2 H9 113.109 C2 C1 H5 109.678
C2 C1 H6 111.106 C2 C1 H7 111.106
C2 O3 O4 111.027 O3 C2 H8 106.964
O3 C2 H9 106.964 H5 C1 H6 108.161
H5 C1 H7 108.161 H6 C1 H7 108.534
H8 C2 H9 108.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.401      
2 C 0.000      
3 O -0.146      
4 O -0.180      
5 H 0.141      
6 H 0.149      
7 H 0.149      
8 H 0.144      
9 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.672 2.409 0.000 2.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.354 -1.188 0.000
y -1.188 -24.876 0.000
z 0.000 0.000 -23.014
Traceless
 xyz
x -1.410 -1.188 0.000
y -1.188 -0.691 0.000
z 0.000 0.000 2.101
Polar
3z2-r24.202
x2-y2-0.479
xy-1.188
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.552 1.056 0.000
y 1.056 4.729 0.000
z 0.000 0.000 3.782


<r2> (average value of r2) Å2
<r2> 90.396
(<r2>)1/2 9.508