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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-154.208682
Energy at 298.15K 
HF Energy-154.208682
Nuclear repulsion energy74.281628
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 HSEh1PBE/6-31G**
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' 3157 3013 19.45      
2 A' 3072 2931 12.03      
3 A' 2936 2802 27.14      
4 A' 1506 1437 5.42      
5 A' 1426 1361 29.70      
6 A' 1401 1337 11.93      
7 A' 1350 1288 8.17      
8 A' 1113 1062 8.14      
9 A' 1111 1061 10.93      
10 A' 910 868 0.54      
11 A' 431 412 6.91      
12 A" 3166 3021 17.30      
13 A" 2959 2824 8.77      
14 A" 1496 1428 4.88      
15 A" 1248 1191 0.46      
16 A" 857 818 0.00      
17 A" 255 244 11.03      
18 A" 204i 194i 33.16      

Unscaled Zero Point Vibrational Energy (zpe) 14095.3 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 13451.1 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 HSEh1PBE/6-31G**
ABC
1.32605 0.32049 0.28510

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.040 -0.597 0.000
C2 0.000 0.511 0.000
O3 -1.300 0.098 0.000
H4 2.054 -0.187 0.000
H5 0.924 -1.229 0.885
H6 0.924 -1.229 -0.885
H7 0.129 1.191 0.866
H8 0.129 1.191 -0.866

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51972.44051.09471.09341.09342.18552.1855
C21.51971.36402.16972.15982.15981.10871.1087
O32.44051.36403.36622.73652.73651.99681.9968
H41.09472.16973.36621.77401.77402.52082.5208
H51.09342.15982.73651.77401.77002.54693.0909
H61.09342.15982.73651.77401.77003.09092.5469
H72.18551.10871.99682.52082.54693.09091.7329
H82.18551.10871.99682.52083.09092.54691.7329

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 115.522 C1 C2 H7 111.553
C1 C2 H8 111.553 C2 C1 H4 111.140
C2 C1 H5 110.424 C2 C1 H6 110.424
O3 C2 H7 107.266 O3 C2 H8 107.266
H4 C1 H5 108.343 H4 C1 H6 108.343
H5 C1 H6 108.072 H7 C2 H8 102.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.405      
2 C -0.016      
3 O -0.307      
4 H 0.126      
5 H 0.147      
6 H 0.147      
7 H 0.154      
8 H 0.154      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.864 0.633 0.000 1.969
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.812 0.199 0.000
y 0.199 -18.308 0.000
z 0.000 0.000 -17.808
Traceless
 xyz
x -3.754 0.199 0.000
y 0.199 1.502 0.000
z 0.000 0.000 2.252
Polar
3z2-r24.504
x2-y2-3.504
xy0.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.182 0.049 0.000
y 0.049 3.739 0.000
z 0.000 0.000 3.762


<r2> (average value of r2) Å2
<r2> 50.765
(<r2>)1/2 7.125