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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-154.238191
Energy at 298.15K 
HF Energy-154.238191
Nuclear repulsion energy74.418221
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' 3133 3006 26.59      
2 A' 3057 2933 15.67      
3 A' 2926 2808 32.39      
4 A' 1510 1449 7.87      
5 A' 1426 1369 35.88      
6 A' 1405 1348 17.17      
7 A' 1361 1306 8.26      
8 A' 1113 1068 8.02      
9 A' 1103 1058 13.85      
10 A' 907 870 0.27      
11 A' 434 417 7.31      
12 A" 3141 3014 24.48      
13 A" 2941 2822 10.27      
14 A" 1499 1439 8.02      
15 A" 1254 1203 0.36      
16 A" 866 831 0.01      
17 A" 271 260 16.56      
18 A" 87i 84i 20.72      

Unscaled Zero Point Vibrational Energy (zpe) 14129.1 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 13558.3 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 HSEh1PBE/6-311G*
ABC
1.33219 0.32159 0.28615

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 1.037 -0.598 0.000
C2 0.000 0.510 0.000
O3 -1.296 0.100 0.000
H4 2.054 -0.194 0.000
H5 0.921 -1.230 0.883
H6 0.921 -1.230 -0.883
H7 0.125 1.190 0.865
H8 0.125 1.190 -0.865

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51732.43561.09411.09271.09272.18562.1856
C21.51731.35942.17122.15762.15761.10791.1079
O32.43561.35943.36322.73222.73221.98951.9895
H41.09412.17123.36321.77181.77182.52652.5265
H51.09272.15762.73221.77181.76662.54793.0901
H61.09272.15762.73221.77181.76663.09012.5479
H72.18561.10791.98952.52652.54793.09011.7302
H82.18561.10791.98952.52653.09012.54791.7302

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 115.591 C1 C2 H7 111.776
C1 C2 H8 111.776 C2 C1 H4 111.456
C2 C1 H5 110.461 C2 C1 H6 110.461
O3 C2 H7 107.040 O3 C2 H8 107.040
H4 C1 H5 108.236 H4 C1 H6 108.236
H5 C1 H6 107.876 H7 C2 H8 102.684
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 -0.672      
2 C -0.262      
3 O -0.221      
4 H 0.215      
5 H 0.233      
6 H 0.233      
7 H 0.237      
8 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.881 0.683 0.000 2.001
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.221 0.288 0.000
y 0.288 -18.667 0.000
z 0.000 0.000 -17.994
Traceless
 xyz
x -3.890 0.288 0.000
y 0.288 1.440 0.000
z 0.000 0.000 2.450
Polar
3z2-r24.900
x2-y2-3.554
xy0.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.372 0.014 0.000
y 0.014 3.947 0.000
z 0.000 0.000 3.867


<r2> (average value of r2) Å2
<r2> 50.840
(<r2>)1/2 7.130