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

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-153.522160
Energy at 298.15K 
HF Energy-153.522160
Nuclear repulsion energy74.380009
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 HF/daug-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' 3222 2914 39.74      
2 A' 3162 2860 14.72      
3 A' 3137 2838 30.68      
4 A' 1614 1460 4.46      
5 A' 1567 1418 9.15      
6 A' 1541 1394 14.75      
7 A' 1505 1362 7.00      
8 A' 1193 1079 7.09      
9 A' 1149 1039 36.22      
10 A' 953 862 2.39      
11 A' 456 413 5.81      
12 A" 3233 2925 46.42      
13 A" 3163 2862 13.82      
14 A" 1599 1446 3.46      
15 A" 1367 1237 0.28      
16 A" 921 833 0.00      
17 A" 262 237 3.04      
18 A" 199i 180i 13.66      

Unscaled Zero Point Vibrational Energy (zpe) 14923.2 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 13499.5 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 HF/daug-cc-pVTZ
ABC
1.30676 0.32344 0.28640

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.047 -0.571 0.000
C2 0.000 0.528 0.000
O3 -1.301 0.057 0.000
H4 2.043 -0.144 0.000
H5 0.943 -1.197 0.878
H6 0.943 -1.197 -0.878
H7 0.100 1.172 0.870
H8 0.100 1.172 -0.870

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51752.43051.08441.08301.08302.16602.1660
C21.51751.38382.15082.15272.15271.08741.0874
O32.43051.38383.35062.71662.71661.99081.9908
H41.08442.15083.35061.75791.75792.50302.5030
H51.08302.15272.71661.75791.75562.51433.0623
H61.08302.15272.71661.75791.75563.06232.5143
H72.16601.08741.99082.50302.51433.06231.7408
H82.16601.08741.99082.50303.06232.51431.7408

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 113.725 C1 C2 H7 111.441
C1 C2 H8 111.441 C2 C1 H4 110.399
C2 C1 H5 110.637 C2 C1 H6 110.637
O3 C2 H7 106.726 O3 C2 H8 106.726
H4 C1 H5 108.397 H4 C1 H6 108.397
H5 C1 H6 108.295 H7 C2 H8 106.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.354      
2 C 0.014      
3 O -1.010      
4 H 0.682      
5 H 0.295      
6 H 0.295      
7 H 0.540      
8 H 0.540      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.863 0.626 0.000 1.966
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.351 0.069 0.000
y 0.069 -18.948 0.000
z 0.000 0.000 -18.007
Traceless
 xyz
x -3.874 0.069 0.000
y 0.069 1.232 0.000
z 0.000 0.000 2.642
Polar
3z2-r25.284
x2-y2-3.404
xy0.069
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.585 -0.096 0.000
y -0.096 4.293 0.000
z 0.000 0.000 4.103


<r2> (average value of r2) Å2
<r2> 50.781
(<r2>)1/2 7.126