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

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-228.341806
Energy at 298.15K-228.348022
HF Energy-228.341806
Nuclear repulsion energy125.628372
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3241 2938 37.78      
2 A' 3198 2899 22.24      
3 A' 3175 2878 18.82      
4 A' 1646 1492 4.89      
5 A' 1617 1466 2.07      
6 A' 1556 1410 22.22      
7 A' 1516 1374 5.19      
8 A' 1291 1170 89.99      
9 A' 1253 1136 23.22      
10 A' 1118 1013 20.25      
11 A' 954 865 6.57      
12 A' 549 498 7.94      
13 A' 337 306 0.88      
14 A" 3258 2953 63.41      
15 A" 3231 2929 0.14      
16 A" 1600 1451 5.21      
17 A" 1398 1268 0.95      
18 A" 1278 1159 4.86      
19 A" 873 792 0.29      
20 A" 257 233 0.59      
21 A" 105 95 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 16726.4 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 15160.8 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 HF/Def2TZVPP
ABC
1.15300 0.15117 0.14060

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.883 0.000
C2 0.000 0.657 0.000
O3 -0.220 -0.748 0.000
O4 -1.483 -1.030 0.000
H5 1.701 1.945 0.000
H6 1.949 0.444 0.879
H7 1.949 0.444 -0.879
H8 -0.468 1.076 -0.880
H9 -0.468 1.076 0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51072.36593.53811.08281.08221.08222.15922.1592
C21.51071.42262.24632.13392.14812.14811.08121.0812
O32.36591.42261.29343.30872.62632.62632.04022.0402
O43.53812.24631.29344.35793.83643.83642.49772.4977
H51.08282.13393.30874.35791.75701.75702.49762.4976
H61.08222.14812.62633.83641.75701.75733.05512.4980
H71.08222.14812.62633.83641.75701.75732.49803.0551
H82.15921.08122.04022.49772.49763.05512.49801.7604
H92.15921.08122.04022.49772.49762.49803.05511.7604

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 107.488 C1 C2 H8 111.752
C1 C2 H9 111.752 C2 C1 H5 109.619
C2 C1 H6 110.795 C2 C1 H7 110.795
C2 O3 O4 111.516 O3 C2 H8 108.371
O3 C2 H9 108.371 H5 C1 H6 108.499
H5 C1 H7 108.499 H6 C1 H7 108.570
H8 C2 H9 108.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.162      
2 C 0.123      
3 O -0.145      
4 O -0.113      
5 H 0.053      
6 H 0.067      
7 H 0.067      
8 H 0.055      
9 H 0.055      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.165 2.234 0.000 2.519
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.422 -0.771 0.000
y -0.771 -25.233 0.000
z 0.000 0.000 -23.184
Traceless
 xyz
x -1.214 -0.771 0.000
y -0.771 -0.930 0.000
z 0.000 0.000 2.144
Polar
3z2-r24.287
x2-y2-0.189
xy-0.771
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.583 0.765 0.000
y 0.765 4.705 0.000
z 0.000 0.000 4.063


<r2> (average value of r2) Å2
<r2> 87.447
(<r2>)1/2 9.351