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All results from a given calculation for CH3CH2O (Ethoxy radical)

using model chemistry: mPW1PW91/6-31+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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-154.343809
Energy at 298.15K-154.348723
HF Energy-154.343809
Nuclear repulsion energy74.263214
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 mPW1PW91/6-31+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' 3155 3003 18.71      
2 A' 3072 2924 13.74      
3 A' 2944 2803 24.46      
4 A' 1502 1430 7.54      
5 A' 1424 1355 33.96      
6 A' 1397 1330 19.21      
7 A' 1347 1282 8.69      
8 A' 1110 1056 15.47      
9 A' 1104 1050 5.58      
10 A' 906 862 0.36      
11 A' 435 414 7.10      
12 A" 3166 3013 16.30      
13 A" 2966 2823 5.34      
14 A" 1492 1420 7.91      
15 A" 1246 1186 0.09      
16 A" 865 823 0.01      
17 A" 269 256 19.45      
18 A" 130 124 12.50      

Unscaled Zero Point Vibrational Energy (zpe) 14264.7 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 13577.2 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 mPW1PW91/6-31+G**
ABC
1.33119 0.31955 0.28458

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.043 -0.596 0.000
C2 0.000 0.509 0.000
O3 -1.302 0.097 0.000
H4 2.053 -0.177 0.000
H5 0.932 -1.227 0.885
H6 0.932 -1.227 -0.885
H7 0.121 1.188 0.866
H8 0.121 1.188 -0.866

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51942.44461.09411.09251.09252.18722.1872
C21.51941.36562.16482.16022.16021.10731.1073
O32.44461.36563.36612.74322.74321.99131.9913
H41.09412.16483.36611.77301.77302.51962.5196
H51.09252.16022.74321.77301.76962.54803.0917
H61.09252.16022.74321.77301.76963.09172.5480
H72.18721.10731.99132.51962.54803.09171.7328
H82.18721.10731.99132.51963.09172.54801.7328

picture of Ethoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 115.747 C1 C2 H7 111.794
C1 C2 H8 111.794 C2 C1 H4 110.804
C2 C1 H5 110.533 C2 C1 H6 110.533
O3 C2 H7 106.802 O3 C2 H8 106.802
H4 C1 H5 108.359 H4 C1 H6 108.359
H5 C1 H6 108.167 H7 C2 H8 102.966
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.471      
2 C -0.207      
3 O -0.220      
4 H 0.165      
5 H 0.183      
6 H 0.183      
7 H 0.184      
8 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.113 0.713 0.000 2.230
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.619 0.158 0.000
y 0.158 -18.723 0.000
z 0.000 0.000 -18.072
Traceless
 xyz
x -4.222 0.158 0.000
y 0.158 1.623 0.000
z 0.000 0.000 2.599
Polar
3z2-r25.198
x2-y2-3.896
xy0.158
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.785 0.041 0.000
y 0.041 4.247 0.000
z 0.000 0.000 4.005


<r2> (average value of r2) Å2
<r2> 51.126
(<r2>)1/2 7.150