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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-154.342560
Energy at 298.15K 
HF Energy-154.342560
Nuclear repulsion energy74.369419
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 mPW1PW91/6-31G(2df,p)
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' 3151 3008 18.01      
2 A' 3066 2927 11.75      
3 A' 2931 2798 25.47      
4 A' 1497 1429 4.64      
5 A' 1411 1348 28.44      
6 A' 1392 1329 9.97      
7 A' 1343 1282 10.12      
8 A' 1106 1055 12.03      
9 A' 1104 1054 6.88      
10 A' 903 862 0.52      
11 A' 427 408 5.92      
12 A" 3159 3016 16.11      
13 A" 2952 2818 7.70      
14 A" 1487 1419 4.53      
15 A" 1245 1188 0.25      
16 A" 851 812 0.00      
17 A" 246 235 10.54      
18 A" 190i 181i 28.56      

Unscaled Zero Point Vibrational Energy (zpe) 14040.0 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 13404.0 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 mPW1PW91/6-31G(2df,p)
ABC
1.33189 0.32075 0.28551

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.037 -0.603 0.000
C2 0.000 0.510 0.000
O3 -1.297 0.105 0.000
H4 2.051 -0.194 0.000
H5 0.920 -1.233 0.884
H6 0.920 -1.233 -0.884
H7 0.134 1.189 0.865
H8 0.134 1.189 -0.865

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.52112.43961.09341.09231.09232.18512.1851
C21.52111.35902.16842.16002.16001.10771.1077
O32.43961.35903.36192.73672.73671.99251.9925
H41.09342.16843.36191.77261.77262.51732.5173
H51.09232.16002.73671.77261.76902.54633.0893
H61.09232.16002.73671.77261.76903.08932.5463
H72.18511.10771.99252.51732.54633.08931.7300
H82.18511.10771.99252.51733.08932.54631.7300

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 115.672 C1 C2 H7 111.479
C1 C2 H8 111.479 C2 C1 H4 111.013
C2 C1 H5 110.411 C2 C1 H6 110.411
O3 C2 H7 107.309 O3 C2 H8 107.309
H4 C1 H5 108.388 H4 C1 H6 108.388
H5 C1 H6 108.144 H7 C2 H8 102.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.463      
2 C -0.067      
3 O -0.241      
4 H 0.140      
5 H 0.156      
6 H 0.156      
7 H 0.159      
8 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.792 0.593 0.000 1.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.595 0.263 0.000
y 0.263 -18.222 0.000
z 0.000 0.000 -17.664
Traceless
 xyz
x -3.652 0.263 0.000
y 0.263 1.407 0.000
z 0.000 0.000 2.244
Polar
3z2-r24.489
x2-y2-3.372
xy0.263
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.311 -0.007 0.000
y -0.007 3.906 0.000
z 0.000 0.000 3.850


<r2> (average value of r2) Å2
<r2> 50.617
(<r2>)1/2 7.115