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

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-152.704373
Energy at 298.15K 
HF Energy-152.704373
Nuclear repulsion energy73.723630
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 LSDA/3-21G
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' 3080 3030 10.27      
2 A' 2994 2945 5.49      
3 A' 2760 2715 32.16      
4 A' 1495 1470 10.69      
5 A' 1390 1367 21.35      
6 A' 1376 1354 33.03      
7 A' 1269 1248 9.15      
8 A' 1087 1069 13.48      
9 A' 1066 1048 11.55      
10 A' 872 858 4.32      
11 A' 395 388 8.16      
12 A" 3083 3033 6.97      
13 A" 2757 2712 5.33      
14 A" 1484 1459 11.09      
15 A" 1213 1194 1.38      
16 A" 858 844 0.16      
17 A" 259 255 28.51      
18 A" 174i 171i 46.23      

Unscaled Zero Point Vibrational Energy (zpe) 13631.7 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 13408.1 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 LSDA/3-21G
ABC
1.31899 0.31500 0.28074

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.047 -0.597 0.000
C2 0.000 0.502 0.000
O3 -1.317 0.101 0.000
H4 2.066 -0.174 0.000
H5 0.926 -1.234 0.893
H6 0.926 -1.234 -0.893
H7 0.167 1.202 0.868
H8 0.167 1.202 -0.868

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51762.46451.10391.10341.10342.18232.1823
C21.51761.37632.17382.16042.16041.12741.1274
O32.46451.37633.39412.75862.75862.04132.0413
H41.10392.17383.39411.79481.79482.50012.5001
H51.10342.16042.75861.79481.78592.55133.0997
H61.10342.16042.75861.79481.78593.09972.5513
H72.18231.12742.04132.50012.55133.09971.7354
H82.18231.12742.04132.50013.09972.55131.7354

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 116.693 C1 C2 H7 110.315
C1 C2 H8 110.315 C2 C1 H4 111.058
C2 C1 H5 110.024 C2 C1 H6 110.024
O3 C2 H7 108.830 O3 C2 H8 108.830
H4 C1 H5 108.808 H4 C1 H6 108.808
H5 C1 H6 108.052 H7 C2 H8 100.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.659      
2 C -0.227      
3 O -0.290      
4 H 0.206      
5 H 0.235      
6 H 0.235      
7 H 0.250      
8 H 0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.998 0.724 0.000 2.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.074 0.302 0.000
y 0.302 -18.058 0.000
z 0.000 0.000 -17.888
Traceless
 xyz
x -4.101 0.302 0.000
y 0.302 1.923 0.000
z 0.000 0.000 2.179
Polar
3z2-r24.357
x2-y2-4.016
xy0.302
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.101 0.094 0.000
y 0.094 3.482 0.000
z 0.000 0.000 3.616


<r2> (average value of r2) Å2
<r2> 51.361
(<r2>)1/2 7.167