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

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-154.245049
Energy at 298.15K 
HF Energy-154.245049
Nuclear repulsion energy74.394544
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 HSEh1PBE/6-311G**
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' 3131 3007 21.87      
2 A' 3053 2932 13.26      
3 A' 2919 2803 28.52      
4 A' 1491 1432 6.87      
5 A' 1410 1355 31.63      
6 A' 1386 1331 15.88      
7 A' 1342 1289 10.44      
8 A' 1105 1061 12.35      
9 A' 1098 1055 9.16      
10 A' 903 867 0.30      
11 A' 434 416 7.38      
12 A" 3139 3015 19.78      
13 A" 2934 2818 8.23      
14 A" 1479 1421 7.29      
15 A" 1241 1192 0.25      
16 A" 859 825 0.00      
17 A" 269 258 15.73      
18 A" 101i 97i 19.43      

Unscaled Zero Point Vibrational Energy (zpe) 14046.3 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 13490.0 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 HSEh1PBE/6-311G**
ABC
1.33175 0.32128 0.28591

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.038 -0.599 0.000
C2 0.000 0.509 0.000
O3 -1.297 0.101 0.000
H4 2.053 -0.191 0.000
H5 0.920 -1.230 0.884
H6 0.920 -1.230 -0.884
H7 0.128 1.190 0.865
H8 0.128 1.190 -0.865

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51832.43731.09411.09261.09262.18582.1858
C21.51831.35982.16902.15722.15721.10821.1082
O32.43731.35983.36252.73292.73291.99111.9911
H41.09412.16903.36251.77311.77312.52242.5224
H51.09262.15722.73291.77311.76872.54673.0895
H61.09262.15722.73291.77311.76873.08952.5467
H72.18581.10821.99112.52242.54673.08951.7297
H82.18581.10821.99112.52243.08952.54671.7297

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 115.635 C1 C2 H7 111.705
C1 C2 H8 111.705 C2 C1 H4 111.222
C2 C1 H5 110.364 C2 C1 H6 110.364
O3 C2 H7 107.126 O3 C2 H8 107.126
H4 C1 H5 108.363 H4 C1 H6 108.363
H5 C1 H6 108.072 H7 C2 H8 102.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.354      
2 C -0.087      
3 O -0.233      
4 H 0.115      
5 H 0.133      
6 H 0.133      
7 H 0.146      
8 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.886 0.674 0.000 2.003
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.153 0.253 0.000
y 0.253 -18.591 0.000
z 0.000 0.000 -17.986
Traceless
 xyz
x -3.865 0.253 0.000
y 0.253 1.478 0.000
z 0.000 0.000 2.386
Polar
3z2-r24.772
x2-y2-3.562
xy0.253
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.454 0.003 0.000
y 0.003 4.020 0.000
z 0.000 0.000 3.919


<r2> (average value of r2) Å2
<r2> 50.832
(<r2>)1/2 7.130