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

using model chemistry: mPW1PW91/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-154.339156
Energy at 298.15K 
HF Energy-154.339156
Nuclear repulsion energy74.219061
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-pVDZ
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' 3154 3023 17.84      
2 A' 3065 2937 12.85      
3 A' 2929 2807 28.56      
4 A' 1474 1412 4.96      
5 A' 1405 1346 32.89      
6 A' 1375 1317 10.16      
7 A' 1319 1264 11.45      
8 A' 1110 1064 17.75      
9 A' 1098 1053 2.55      
10 A' 907 869 0.20      
11 A' 431 413 6.46      
12 A" 3161 3029 15.14      
13 A" 2951 2828 8.95      
14 A" 1461 1400 5.84      
15 A" 1234 1183 0.29      
16 A" 851 816 0.02      
17 A" 267 256 16.00      
18 A" 119i 114i 19.83      

Unscaled Zero Point Vibrational Energy (zpe) 14035.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 13450.6 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-pVDZ
ABC
1.32721 0.31986 0.28486

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.038 -0.601 0.000
C2 0.000 0.508 0.000
O3 -1.299 0.104 0.000
H4 2.059 -0.190 0.000
H5 0.922 -1.237 0.889
H6 0.922 -1.237 -0.889
H7 0.132 1.194 0.868
H8 0.132 1.194 -0.868

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51902.44171.10021.09931.09932.19022.1902
C21.51901.36062.17382.16462.16461.11441.1144
O32.44171.36063.37102.74332.74331.99731.9973
H41.10022.17383.37101.78281.78282.52632.5263
H51.09932.16462.74331.78281.77822.55633.1020
H61.09932.16462.74331.78281.77823.10202.5563
H72.19021.11441.99732.52632.55633.10201.7365
H82.19021.11441.99732.52633.10202.55631.7365

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 115.869 C1 C2 H7 111.629
C1 C2 H8 111.629 C2 C1 H4 111.181
C2 C1 H5 110.504 C2 C1 H6 110.504
O3 C2 H7 107.185 O3 C2 H8 107.185
H4 C1 H5 108.296 H4 C1 H6 108.296
H5 C1 H6 107.955 H7 C2 H8 102.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.109      
2 C 0.042      
3 O -0.216      
4 H 0.038      
5 H 0.056      
6 H 0.056      
7 H 0.066      
8 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.797 0.619 0.000 1.901
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.785 0.268 0.000
y 0.268 -18.389 0.000
z 0.000 0.000 -17.834
Traceless
 xyz
x -3.673 0.268 0.000
y 0.268 1.421 0.000
z 0.000 0.000 2.252
Polar
3z2-r24.505
x2-y2-3.396
xy0.268
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.289 -0.004 0.000
y -0.004 3.883 0.000
z 0.000 0.000 3.797


<r2> (average value of r2) Å2
<r2> 50.863
(<r2>)1/2 7.132