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

using model chemistry: BLYP/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 BLYP/3-21G
 hartrees
Energy at 0K-153.456466
Energy at 298.15K 
HF Energy-153.456466
Nuclear repulsion energy72.412347
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/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' 3043 3026 24.32      
2 A' 2980 2963 14.17      
3 A' 2826 2810 32.64      
4 A' 1527 1518 6.38      
5 A' 1424 1416 12.63      
6 A' 1411 1403 14.55      
7 A' 1311 1303 2.74      
8 A' 1077 1072 4.42      
9 A' 959 954 18.32      
10 A' 817 813 0.71      
11 A' 379 377 5.52      
12 A" 3053 3036 22.41      
13 A" 2831 2815 11.41      
14 A" 1518 1510 4.66      
15 A" 1243 1236 0.69      
16 A" 871 866 0.01      
17 A" 228 227 7.44      
18 A" 423i 420i 65.81      

Unscaled Zero Point Vibrational Energy (zpe) 13537.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 13462.7 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/3-21G
ABC
1.26160 0.30360 0.26954

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.084 -0.578 0.000
C2 0.000 0.529 0.000
O3 -1.350 0.056 0.000
H4 2.094 -0.133 0.000
H5 0.974 -1.213 0.894
H6 0.974 -1.213 -0.894
H7 0.126 1.204 0.881
H8 0.126 1.204 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.55002.51541.10301.10161.10162.20762.2076
C21.55001.43042.19582.18672.18671.11681.1168
O32.51541.43043.44852.79412.79412.06682.0668
H41.10302.19583.44851.79381.79382.53732.5373
H51.10162.18672.79411.79381.78752.56183.1162
H61.10162.18672.79411.79381.78753.11622.5618
H72.20761.11682.06682.53732.56183.11621.7613
H82.20761.11682.06682.53733.11622.56181.7613

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 115.065 C1 C2 H7 110.695
C1 C2 H8 110.695 C2 C1 H4 110.589
C2 C1 H5 109.957 C2 C1 H6 109.957
O3 C2 H7 107.830 O3 C2 H8 107.830
H4 C1 H5 108.920 H4 C1 H6 108.920
H5 C1 H6 108.455 H7 C2 H8 104.099
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.541      
2 C -0.154      
3 O -0.274      
4 H 0.169      
5 H 0.192      
6 H 0.192      
7 H 0.208      
8 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.760 0.698 0.000 1.893
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.928 0.157 0.000
y 0.157 -18.355 0.000
z 0.000 0.000 -17.947
Traceless
 xyz
x -3.777 0.157 0.000
y 0.157 1.582 0.000
z 0.000 0.000 2.194
Polar
3z2-r24.389
x2-y2-3.573
xy0.157
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.049 0.079 0.000
y 0.079 3.421 0.000
z 0.000 0.000 3.587


<r2> (average value of r2) Å2
<r2> 52.786
(<r2>)1/2 7.265