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

using model chemistry: BLYP/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 BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-154.315659
Energy at 298.15K 
HF Energy-154.315659
Nuclear repulsion energy73.646256
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 BLYP/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' 3032 3015 23.75      
2 A' 2963 2947 14.03      
3 A' 2754 2739 34.05      
4 A' 1457 1449 3.25      
5 A' 1360 1353 7.76      
6 A' 1340 1333 26.64      
7 A' 1268 1261 15.49      
8 A' 1063 1057 3.24      
9 A' 1042 1037 17.76      
10 A' 852 848 2.04      
11 A' 415 412 6.32      
12 A" 3042 3025 20.19      
13 A" 2745 2730 9.99      
14 A" 1448 1440 3.62      
15 A" 1186 1179 0.02      
16 A" 822 818 0.28      
17 A" 235 234 14.21      
18 A" 161i 160i 31.50      

Unscaled Zero Point Vibrational Energy (zpe) 13430.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 13356.5 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 BLYP/6-31G(2df,p)
ABC
1.32358 0.31217 0.27858

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.044 -0.628 0.000
C2 0.000 0.506 0.000
O3 -1.311 0.133 0.000
H4 2.069 -0.221 0.000
H5 0.920 -1.262 0.891
H6 0.920 -1.262 -0.891
H7 0.159 1.204 0.866
H8 0.159 1.204 -0.866

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.54122.47471.10241.10081.10082.21102.2110
C21.54121.36322.19282.18312.18311.12331.1233
O32.47471.36323.39822.77792.77792.01432.0143
H41.10242.19283.39821.78791.78792.53552.5355
H51.10082.18312.77791.78791.78262.58063.1220
H61.10082.18312.77791.78791.78263.12202.5806
H72.21101.12332.01432.53552.58063.12201.7318
H82.21101.12332.01432.53553.12202.58061.7318

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 116.741 C1 C2 H7 111.180
C1 C2 H8 111.180 C2 C1 H4 111.000
C2 C1 H5 110.330 C2 C1 H6 110.330
O3 C2 H7 107.819 O3 C2 H8 107.819
H4 C1 H5 108.484 H4 C1 H6 108.484
H5 C1 H6 108.131 H7 C2 H8 100.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.346      
2 C -0.017      
3 O -0.213      
4 H 0.097      
5 H 0.116      
6 H 0.116      
7 H 0.123      
8 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.828 0.577 0.000 1.917
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.915 0.322 0.000
y 0.322 -18.367 0.000
z 0.000 0.000 -17.939
Traceless
 xyz
x -3.762 0.322 0.000
y 0.322 1.561 0.000
z 0.000 0.000 2.201
Polar
3z2-r24.403
x2-y2-3.548
xy0.322
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.642 -0.011 0.000
y -0.011 4.082 0.000
z 0.000 0.000 3.996


<r2> (average value of r2) Å2
<r2> 51.696
(<r2>)1/2 7.190