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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-30.187201
Energy at 298.15K 
HF Energy-30.187201
Nuclear repulsion energy42.497582
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3080 3002 40.58      
2 A' 2994 2918 20.78      
3 A' 2922 2848 36.01      
4 A' 1517 1478 10.31      
5 A' 1440 1403 22.39      
6 A' 1432 1395 12.21      
7 A' 1362 1327 5.69      
8 A' 1105 1076 7.14      
9 A' 1038 1011 17.54      
10 A' 865 843 0.37      
11 A' 412 401 8.16      
12 A" 3095 3016 34.57      
13 A" 2939 2864 0.00      
14 A" 1506 1467 6.37      
15 A" 1248 1216 0.61      
16 A" 836 814 0.02      
17 A" 225 219 3.18      
18 A" 1606i 1565i 800.95      

Unscaled Zero Point Vibrational Energy (zpe) 13203.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 12866.8 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 B3LYP/CEP-121G
ABC
1.25453 0.30671 0.27148

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.087 -0.554 0.000
C2 0.000 0.536 0.000
O3 -1.346 0.024 0.000
H4 2.090 -0.104 0.000
H5 0.994 -1.191 0.888
H6 0.994 -1.191 -0.888
H7 0.081 1.203 0.880
H8 0.081 1.203 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.54012.50071.09911.09681.09682.20812.2081
C21.54011.43982.18552.18192.18191.10721.1072
O32.50071.43983.43772.78192.78192.04932.0493
H41.09912.18553.43771.78101.78102.55292.5529
H51.09682.18192.78191.78101.77682.56203.1132
H61.09682.18192.78191.78101.77683.11322.5620
H72.20811.10722.04932.55292.56203.11321.7607
H82.20811.10722.04932.55293.11322.56201.7607

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 114.067 C1 C2 H7 112.011
C1 C2 H8 112.011 C2 C1 H4 110.698
C2 C1 H5 110.546 C2 C1 H6 110.546
O3 C2 H7 106.409 O3 C2 H8 106.409
H4 C1 H5 108.391 H4 C1 H6 108.391
H5 C1 H6 108.184 H7 C2 H8 105.335
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.433      
2 C -0.197      
3 O -0.170      
4 H 0.138      
5 H 0.161      
6 H 0.161      
7 H 0.170      
8 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.225 0.853 0.000 2.382
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.005 -0.069 0.000
y -0.069 -18.785 0.000
z 0.000 0.000 -18.079
Traceless
 xyz
x -4.573 -0.069 0.000
y -0.069 1.757 0.000
z 0.000 0.000 2.816
Polar
3z2-r25.632
x2-y2-4.219
xy-0.069
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.525 0.103 0.000
y 0.103 3.956 0.000
z 0.000 0.000 4.809


<r2> (average value of r2) Å2
<r2> 45.666
(<r2>)1/2 6.758