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

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-154.388978
Energy at 298.15K-154.393779
HF Energy-154.388978
Nuclear repulsion energy74.505992
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 mPW1PW91/cc-pVTZ
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' 3132 3004 19.16      
2 A' 3057 2932 12.00      
3 A' 2920 2801 24.93      
4 A' 1495 1434 5.80      
5 A' 1410 1353 28.92      
6 A' 1392 1335 14.47      
7 A' 1338 1283 10.55      
8 A' 1105 1060 12.58      
9 A' 1096 1051 8.12      
10 A' 901 864 0.45      
11 A' 434 416 6.63      
12 A" 3140 3012 17.24      
13 A" 2932 2812 5.89      
14 A" 1484 1423 6.25      
15 A" 1244 1193 0.07      
16 A" 858 823 0.01      
17 A" 261 250 16.82      
18 A" 69 66 13.62      

Unscaled Zero Point Vibrational Energy (zpe) 14133.3 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 13556.7 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 mPW1PW91/cc-pVTZ
ABC
1.34117 0.32147 0.28634

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.037 -0.599 0.000
C2 0.000 0.507 0.000
O3 -1.297 0.103 0.000
H4 2.047 -0.185 0.000
H5 0.924 -1.228 0.883
H6 0.924 -1.228 -0.883
H7 0.129 1.186 0.862
H8 0.129 1.186 -0.862

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51592.43721.09101.08951.08952.18092.1809
C21.51591.35832.16032.15442.15441.10541.1054
O32.43721.35833.35592.73562.73561.98721.9872
H41.09102.16033.35591.76791.76792.51072.5107
H51.08952.15442.73561.76791.76512.54203.0831
H61.08952.15442.73561.76791.76513.08312.5420
H72.18091.10541.98722.51072.54203.08311.7243
H82.18091.10541.98722.51073.08312.54201.7243

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 115.882 C1 C2 H7 111.650
C1 C2 H8 111.650 C2 C1 H4 110.881
C2 C1 H5 110.493 C2 C1 H6 110.493
O3 C2 H7 107.084 O3 C2 H8 107.084
H4 C1 H5 108.345 H4 C1 H6 108.345
H5 C1 H6 108.197 H7 C2 H8 102.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.251      
2 C 0.044      
3 O -0.220      
4 H 0.074      
5 H 0.092      
6 H 0.092      
7 H 0.085      
8 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.894 0.632 0.000 1.997
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.087 0.237 0.000
y 0.237 -18.577 0.000
z 0.000 0.000 -17.952
Traceless
 xyz
x -3.823 0.237 0.000
y 0.237 1.442 0.000
z 0.000 0.000 2.381
Polar
3z2-r24.761
x2-y2-3.510
xy0.237
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.786 -0.027 0.000
y -0.027 4.307 0.000
z 0.000 0.000 4.106


<r2> (average value of r2) Å2
<r2> 50.728
(<r2>)1/2 7.122