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

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-229.463103
Energy at 298.15K-229.469044
HF Energy-229.463103
Nuclear repulsion energy123.895541
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 B3PW91/6-31+G**
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' 3149 3023 13.42      
2 A' 3080 2957 13.61      
3 A' 3066 2943 11.67      
4 A' 1505 1445 8.05      
5 A' 1495 1435 1.31      
6 A' 1421 1364 23.69      
7 A' 1374 1320 10.07      
8 A' 1234 1184 14.89      
9 A' 1140 1095 6.18      
10 A' 1033 991 17.79      
11 A' 852 818 2.25      
12 A' 508 488 9.96      
13 A' 307 294 1.53      
14 A" 3160 3034 25.05      
15 A" 3135 3010 2.45      
16 A" 1485 1426 8.86      
17 A" 1274 1223 0.20      
18 A" 1146 1100 4.91      
19 A" 801 769 1.50      
20 A" 225 216 0.31      
21 A" 79 76 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 15733.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 15105.5 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 B3PW91/6-31+G**
ABC
1.12108 0.14721 0.13687

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.492 0.918 0.000
C2 0.000 0.676 0.000
O3 -0.210 -0.766 0.000
O4 -1.486 -1.069 0.000
H5 1.685 1.995 0.000
H6 1.962 0.487 0.888
H7 1.962 0.487 -0.888
H8 -0.494 1.073 -0.892
H9 -0.494 1.073 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51122.39383.58021.09431.09361.09362.18262.1826
C21.51121.45712.29252.13992.16192.16191.09411.0941
O32.39381.45711.31213.34852.65972.65972.06312.0631
O43.58022.29251.31214.40993.88603.88602.52342.5234
H51.09432.13993.34854.40991.77211.77212.52902.5290
H61.09362.16192.65973.88601.77211.77653.08952.5252
H71.09362.16192.65973.88601.77211.77652.52523.0895
H82.18261.09412.06312.52342.52903.08952.52521.7836
H92.18261.09412.06312.52342.52902.52523.08951.7836

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 107.489 C1 C2 H8 112.829
C1 C2 H9 112.829 C2 C1 H5 109.385
C2 C1 H6 111.178 C2 C1 H7 111.178
C2 O3 O4 111.650 O3 C2 H8 107.080
O3 C2 H9 107.080 H5 C1 H6 108.187
H5 C1 H7 108.187 H6 C1 H7 108.631
H8 C2 H9 109.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.528      
2 C -0.155      
3 O -0.032      
4 O -0.192      
5 H 0.177      
6 H 0.186      
7 H 0.186      
8 H 0.179      
9 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.776 2.657 0.000 3.196
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.111 -1.276 0.000
y -1.276 -25.529 0.000
z 0.000 0.000 -23.314
Traceless
 xyz
x -1.689 -1.276 0.000
y -1.276 -0.816 0.000
z 0.000 0.000 2.506
Polar
3z2-r25.012
x2-y2-0.582
xy-1.276
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.135 1.029 0.000
y 1.029 5.136 0.000
z 0.000 0.000 4.148


<r2> (average value of r2) Å2
<r2> 89.570
(<r2>)1/2 9.464