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

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-229.450396
Energy at 298.15K-229.456331
HF Energy-229.450396
Nuclear repulsion energy124.558141
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 B1B95/cc-pVDZ
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' 3174 3051 10.82      
2 A' 3084 2964 8.58      
3 A' 3081 2961 15.89      
4 A' 1482 1424 5.36      
5 A' 1472 1415 0.27      
6 A' 1405 1350 23.03      
7 A' 1357 1305 7.88      
8 A' 1248 1200 21.69      
9 A' 1143 1098 6.19      
10 A' 1058 1017 17.53      
11 A' 862 829 2.20      
12 A' 512 492 9.97      
13 A' 302 291 1.50      
14 A" 3177 3053 19.91      
15 A" 3141 3019 8.48      
16 A" 1455 1399 7.07      
17 A" 1264 1215 0.32      
18 A" 1137 1093 5.45      
19 A" 797 766 2.06      
20 A" 224 215 0.35      
21 A" 72 69 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 15722.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 15112.4 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 B1B95/cc-pVDZ
ABC
1.12849 0.14913 0.13866

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.484 0.913 0.000
C2 0.000 0.666 0.000
O3 -0.209 -0.764 0.000
O4 -1.477 -1.056 0.000
H5 1.680 1.992 0.000
H6 1.955 0.478 0.890
H7 1.955 0.478 -0.890
H8 -0.498 1.068 -0.892
H9 -0.498 1.068 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50402.38293.55591.09711.09711.09712.17902.1790
C21.50401.44522.26892.14022.15632.15631.09821.0982
O32.38291.44521.30133.34162.64942.64942.05802.0580
O43.55592.26891.30134.38863.86363.86362.50312.5031
H51.09712.14023.34164.38861.77811.77812.52872.5287
H61.09712.15632.64943.86361.77811.77983.08932.5233
H71.09712.15632.64943.86361.77811.77982.52333.0893
H82.17901.09822.05802.50312.52873.08932.52331.7847
H92.17901.09822.05802.50312.52872.52333.08931.7847

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 107.780 C1 C2 H8 112.798
C1 C2 H9 112.798 C2 C1 H5 109.745
C2 C1 H6 111.030 C2 C1 H7 111.030
C2 O3 O4 111.292 O3 C2 H8 107.235
O3 C2 H9 107.235 H5 C1 H6 108.264
H5 C1 H7 108.264 H6 C1 H7 108.418
H8 C2 H9 108.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 C 0.102      
3 O -0.123      
4 O -0.151      
5 H 0.048      
6 H 0.054      
7 H 0.054      
8 H 0.051      
9 H 0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.576 2.339 0.000 2.821
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.470 -1.129 0.000
y -1.129 -24.801 0.000
z 0.000 0.000 -22.905
Traceless
 xyz
x -1.617 -1.129 0.000
y -1.129 -0.613 0.000
z 0.000 0.000 2.230
Polar
3z2-r24.461
x2-y2-0.669
xy-1.129
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.477 0.946 0.000
y 0.946 4.488 0.000
z 0.000 0.000 3.697


<r2> (average value of r2) Å2
<r2> 88.352
(<r2>)1/2 9.400