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

using model chemistry: BLYP/6-31G*

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*
 hartrees
Energy at 0K-154.303831
Energy at 298.15K 
HF Energy-154.303831
Nuclear repulsion energy73.500568
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*
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' 3039 3014 27.70      
2 A' 2973 2949 15.59      
3 A' 2773 2750 37.26      
4 A' 1487 1475 4.24      
5 A' 1391 1380 13.60      
6 A' 1371 1360 25.40      
7 A' 1301 1290 10.72      
8 A' 1079 1070 3.38      
9 A' 1050 1042 17.00      
10 A' 862 855 1.99      
11 A' 419 415 7.20      
12 A" 3050 3025 23.67      
13 A" 2768 2745 11.58      
14 A" 1479 1467 4.15      
15 A" 1204 1194 0.13      
16 A" 837 830 0.24      
17 A" 240 238 11.64      
18 A" 209i 207i 40.77      

Unscaled Zero Point Vibrational Energy (zpe) 13555.6 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 13445.8 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 BLYP/6-31G*
ABC
1.31312 0.31171 0.27793

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.062 -0.599 0.000
C2 0.000 0.519 0.000
O3 -1.323 0.092 0.000
H4 2.086 -0.186 0.000
H5 0.945 -1.235 0.892
H6 0.945 -1.235 -0.892
H7 0.119 1.198 0.878
H8 0.119 1.198 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.54172.48261.10461.10161.10162.21052.2105
C21.54171.39022.20232.18312.18311.11561.1156
O32.48261.39023.42062.77522.77522.01742.0174
H41.10462.20233.42061.78791.78792.56072.5607
H51.10162.18312.77521.78791.78352.56913.1195
H61.10162.18312.77521.78791.78353.11952.5691
H72.21051.11562.01742.56072.56913.11951.7554
H82.21051.11562.01742.56073.11952.56911.7554

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 115.632 C1 C2 H7 111.576
C1 C2 H8 111.576 C2 C1 H4 111.592
C2 C1 H5 110.251 C2 C1 H6 110.251
O3 C2 H7 106.731 O3 C2 H8 106.731
H4 C1 H5 108.271 H4 C1 H6 108.271
H5 C1 H6 108.104 H7 C2 H8 103.768
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.408      
2 C -0.025      
3 O -0.299      
4 H 0.125      
5 H 0.148      
6 H 0.148      
7 H 0.155      
8 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.883 0.622 0.000 1.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.016 0.267 0.000
y 0.267 -18.393 0.000
z 0.000 0.000 -17.970
Traceless
 xyz
x -3.834 0.267 0.000
y 0.267 1.600 0.000
z 0.000 0.000 2.235
Polar
3z2-r24.470
x2-y2-3.623
xy0.267
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.445 0.056 0.000
y 0.056 3.823 0.000
z 0.000 0.000 3.831


<r2> (average value of r2) Å2
<r2> 51.819
(<r2>)1/2 7.199