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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-154.311921
Energy at 298.15K 
HF Energy-154.311921
Nuclear repulsion energy74.153782
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 B3PW91/6-31G*
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' 3142 3006 22.11      
2 A' 3064 2931 13.34      
3 A' 2922 2796 29.77      
4 A' 1521 1455 5.85      
5 A' 1436 1374 30.10      
6 A' 1415 1354 13.05      
7 A' 1361 1302 7.91      
8 A' 1114 1066 2.84      
9 A' 1106 1058 16.79      
10 A' 906 867 0.74      
11 A' 430 412 6.91      
12 A" 3152 3016 19.51      
13 A" 2941 2814 9.60      
14 A" 1511 1446 5.17      
15 A" 1253 1199 0.44      
16 A" 865 827 0.01      
17 A" 256 244 12.96      
18 A" 153i 147i 31.65      

Unscaled Zero Point Vibrational Energy (zpe) 14120.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 13509.4 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 B3PW91/6-31G*
ABC
1.32505 0.31885 0.28385

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.042 -0.601 0.000
C2 0.000 0.511 0.000
O3 -1.302 0.102 0.000
H4 2.058 -0.190 0.000
H5 0.925 -1.233 0.886
H6 0.925 -1.233 -0.886
H7 0.130 1.191 0.868
H8 0.130 1.191 -0.868

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.52362.44701.09631.09491.09492.18992.1899
C21.52361.36522.17412.16422.16421.11011.1101
O32.44701.36523.37302.74392.74391.99771.9977
H41.09632.17413.37301.77671.77672.52552.5255
H51.09492.16422.74391.77671.77252.55143.0962
H61.09492.16422.74391.77671.77253.09622.5514
H72.18991.11011.99772.52552.55143.09621.7359
H82.18991.11011.99772.52553.09622.55141.7359

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 115.676 C1 C2 H7 111.534
C1 C2 H8 111.534 C2 C1 H4 111.116
C2 C1 H5 110.414 C2 C1 H6 110.414
O3 C2 H7 107.169 O3 C2 H8 107.169
H4 C1 H5 108.362 H4 C1 H6 108.362
H5 C1 H6 108.081 H7 C2 H8 102.858
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522      
2 C -0.094      
3 O -0.300      
4 H 0.164      
5 H 0.185      
6 H 0.185      
7 H 0.192      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.882 0.642 0.000 1.989
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.825 0.228 0.000
y 0.228 -18.274 0.000
z 0.000 0.000 -17.753
Traceless
 xyz
x -3.811 0.228 0.000
y 0.228 1.515 0.000
z 0.000 0.000 2.296
Polar
3z2-r24.592
x2-y2-3.551
xy0.228
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.168 0.060 0.000
y 0.060 3.694 0.000
z 0.000 0.000 3.723


<r2> (average value of r2) Å2
<r2> 50.912
(<r2>)1/2 7.135