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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-229.529991
Energy at 298.15K-229.535981
HF Energy-229.529991
Nuclear repulsion energy124.581567
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 mPW1PW91/6-311G*
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' 3152 3008 20.20      
2 A' 3089 2948 16.78      
3 A' 3074 2934 13.38      
4 A' 1528 1459 8.03      
5 A' 1515 1446 1.27      
6 A' 1439 1373 27.05      
7 A' 1398 1334 5.57      
8 A' 1249 1192 20.44      
9 A' 1159 1106 7.68      
10 A' 1051 1003 17.55      
11 A' 870 831 2.41      
12 A' 518 494 10.24      
13 A' 311 297 1.73      
14 A" 3162 3018 39.78      
15 A" 3136 2993 2.42      
16 A" 1505 1437 9.18      
17 A" 1302 1242 0.37      
18 A" 1168 1115 5.44      
19 A" 809 772 1.62      
20 A" 228 217 0.37      
21 A" 85 81 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 15873.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 15149.5 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 mPW1PW91/6-311G*
ABC
1.13285 0.14884 0.13839

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.487 0.910 0.000
C2 0.000 0.671 0.000
O3 -0.212 -0.761 0.000
O4 -1.479 -1.059 0.000
H5 1.690 1.983 0.000
H6 1.954 0.476 0.885
H7 1.954 0.476 -0.885
H8 -0.493 1.070 -0.888
H9 -0.493 1.070 0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50602.38313.56011.09151.09091.09092.17602.1760
C21.50601.44712.27582.13932.15422.15421.09141.0914
O32.38311.44711.30133.33832.64722.64722.05372.0537
O43.56012.27581.30134.39243.86373.86372.50822.5082
H51.09152.13933.33834.39241.76721.76722.52752.5275
H61.09092.15422.64723.86371.76721.76943.08012.5189
H71.09092.15422.64723.86371.76721.76942.51893.0801
H82.17601.09142.05372.50822.52753.08012.51891.7758
H92.17601.09142.05372.50822.52752.51893.08011.7758

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 107.595 C1 C2 H8 112.843
C1 C2 H9 112.843 C2 C1 H5 109.870
C2 C1 H6 111.098 C2 C1 H7 111.098
C2 O3 O4 111.695 O3 C2 H8 107.172
O3 C2 H9 107.172 H5 C1 H6 108.144
H5 C1 H7 108.144 H6 C1 H7 108.387
H8 C2 H9 108.898
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.693      
2 C -0.217      
3 O -0.126      
4 O -0.151      
5 H 0.236      
6 H 0.242      
7 H 0.242      
8 H 0.234      
9 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.588 2.455 0.000 2.924
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.864 -1.172 0.000
y -1.172 -25.123 0.000
z 0.000 0.000 -23.079
Traceless
 xyz
x -1.763 -1.172 0.000
y -1.172 -0.651 0.000
z 0.000 0.000 2.414
Polar
3z2-r24.829
x2-y2-0.742
xy-1.172
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.556 0.952 0.000
y 0.952 4.570 0.000
z 0.000 0.000 3.748


<r2> (average value of r2) Å2
<r2> 88.613
(<r2>)1/2 9.413