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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-154.328338
Energy at 298.15K-154.333253
HF Energy-154.328338
Nuclear repulsion energy74.575229
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 B1B95/6-311G*
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' 3142 3012 26.90      
2 A' 3066 2939 15.53      
3 A' 2923 2802 32.94      
4 A' 1514 1451 7.38      
5 A' 1428 1369 35.11      
6 A' 1405 1347 17.60      
7 A' 1357 1300 9.89      
8 A' 1113 1067 9.84      
9 A' 1106 1060 11.26      
10 A' 907 870 0.37      
11 A' 432 414 7.60      
12 A" 3150 3019 24.42      
13 A" 2933 2812 9.02      
14 A" 1503 1441 7.69      
15 A" 1252 1200 0.24      
16 A" 871 835 0.01      
17 A" 288 276 21.49      
18 A" 115 110 11.45      

Unscaled Zero Point Vibrational Energy (zpe) 14250.9 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 13660.9 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 B1B95/6-311G*
ABC
1.33978 0.32265 0.28716

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.035 -0.599 0.000
C2 0.000 0.508 0.000
O3 -1.293 0.103 0.000
H4 2.050 -0.197 0.000
H5 0.917 -1.230 0.881
H6 0.917 -1.230 -0.881
H7 0.127 1.189 0.862
H8 0.127 1.189 -0.862

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51532.43191.09141.09001.09002.18322.1832
C21.51531.35512.16752.15312.15311.10631.1063
O32.43191.35513.35642.72742.72741.98491.9849
H41.09142.16753.35641.76781.76782.52242.5224
H51.09002.15312.72741.76781.76252.54493.0846
H61.09002.15312.72741.76781.76253.08462.5449
H72.18321.10631.98492.52242.54493.08461.7240
H82.18321.10631.98492.52243.08462.54491.7240

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 115.715 C1 C2 H7 111.824
C1 C2 H8 111.824 C2 C1 H4 111.471
C2 C1 H5 110.404 C2 C1 H6 110.404
O3 C2 H7 107.062 O3 C2 H8 107.062
H4 C1 H5 108.276 H4 C1 H6 108.276
H5 C1 H6 107.901 H7 C2 H8 102.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.658      
2 C -0.254      
3 O -0.226      
4 H 0.211      
5 H 0.229      
6 H 0.229      
7 H 0.235      
8 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.920 0.694 0.000 2.042
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.205 0.293 0.000
y 0.293 -18.581 0.000
z 0.000 0.000 -17.952
Traceless
 xyz
x -3.938 0.293 0.000
y 0.293 1.497 0.000
z 0.000 0.000 2.441
Polar
3z2-r24.881
x2-y2-3.623
xy0.293
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.376 0.020 0.000
y 0.020 3.940 0.000
z 0.000 0.000 3.837


<r2> (average value of r2) Å2
<r2> 50.669
(<r2>)1/2 7.118