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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-154.179468
Energy at 298.15K-154.184293
HF Energy-154.179468
Nuclear repulsion energy73.818362
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 PBEPBE/cc-pVDZ
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' 3056 3039 18.15      
2 A' 2970 2953 12.88      
3 A' 2751 2735 37.52      
4 A' 1415 1407 4.12      
5 A' 1338 1330 30.20      
6 A' 1313 1306 14.34      
7 A' 1221 1214 18.85      
8 A' 1076 1070 12.70      
9 A' 1052 1046 8.56      
10 A' 868 863 1.65      
11 A' 420 417 7.37      
12 A" 3063 3046 13.14      
13 A" 2750 2734 10.50      
14 A" 1403 1395 6.53      
15 A" 1161 1154 0.13      
16 A" 811 806 0.03      
17 A" 283 281 30.53      
18 A" 111 111 9.86      

Unscaled Zero Point Vibrational Energy (zpe) 13531.8 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 13453.3 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 PBEPBE/cc-pVDZ
ABC
1.33162 0.31432 0.28078

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.036 -0.627 0.000
C2 0.000 0.498 0.000
O3 -1.305 0.140 0.000
H4 2.071 -0.226 0.000
H5 0.910 -1.269 0.896
H6 0.910 -1.269 -0.896
H7 0.165 1.210 0.865
H8 0.165 1.210 -0.865

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.52982.46371.11001.10891.10892.20972.2097
C21.52981.35322.19392.17992.17991.13261.1326
O32.46371.35323.39582.77362.77362.01382.0138
H41.11002.19393.39581.79941.79942.53802.5380
H51.10892.17992.77361.79941.79182.58813.1303
H61.10892.17992.77361.79941.79183.13032.5881
H72.20971.13262.01382.53802.58813.13031.7304
H82.20971.13262.01382.53803.13032.58811.7304

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 117.291 C1 C2 H7 111.313
C1 C2 H8 111.313 C2 C1 H4 111.430
C2 C1 H5 110.385 C2 C1 H6 110.385
O3 C2 H7 107.892 O3 C2 H8 107.892
H4 C1 H5 108.373 H4 C1 H6 108.373
H5 C1 H6 107.786 H7 C2 H8 99.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 C 0.037      
3 O -0.200      
4 H 0.026      
5 H 0.048      
6 H 0.048      
7 H 0.060      
8 H 0.060      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.829 0.606 0.000 1.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.965 0.369 0.000
y 0.369 -18.434 0.000
z 0.000 0.000 -18.068
Traceless
 xyz
x -3.714 0.369 0.000
y 0.369 1.583 0.000
z 0.000 0.000 2.131
Polar
3z2-r24.262
x2-y2-3.531
xy0.369
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.709 -0.017 0.000
y -0.017 4.147 0.000
z 0.000 0.000 3.981


<r2> (average value of r2) Å2
<r2> 51.545
(<r2>)1/2 7.179