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

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-30.225662
Energy at 298.15K 
HF Energy-30.225662
Nuclear repulsion energy42.946573
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 B3LYP/CEP-121G*
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' 3089 2995 37.63      
2 A' 3019 2927 19.91      
3 A' 2905 2816 35.26      
4 A' 1505 1459 6.91      
5 A' 1422 1379 29.32      
6 A' 1401 1358 15.56      
7 A' 1355 1313 5.55      
8 A' 1091 1058 5.79      
9 A' 1055 1022 18.37      
10 A' 875 849 0.19      
11 A' 420 407 6.98      
12 A" 3102 3007 33.99      
13 A" 2917 2827 9.20      
14 A" 1494 1448 5.20      
15 A" 1237 1199 0.28      
16 A" 821 796 0.20      
17 A" 230 223 3.46      
18 A" 851i 825i 142.17      

Unscaled Zero Point Vibrational Energy (zpe) 13543.7 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 13129.2 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 B3LYP/CEP-121G*
ABC
1.29802 0.31239 0.27777

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.059 -0.596 0.000
C2 0.000 0.521 0.000
O3 -1.320 0.086 0.000
H4 2.073 -0.172 0.000
H5 0.948 -1.230 0.888
H6 0.948 -1.230 -0.888
H7 0.117 1.196 0.874
H8 0.117 1.196 -0.874

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.53892.47441.09881.09671.09672.20492.2049
C21.53891.38942.18542.18002.18001.11061.1106
O32.47441.38943.40222.76852.76852.01502.0150
H41.09882.18543.40221.78081.78082.54162.5416
H51.09672.18002.76851.78081.77672.56413.1113
H61.09672.18002.76851.78081.77673.11132.5641
H72.20491.11062.01502.54162.56413.11131.7480
H82.20491.11062.01502.54163.11132.56411.7480

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 115.248 C1 C2 H7 111.625
C1 C2 H8 111.625 C2 C1 H4 110.792
C2 C1 H5 110.486 C2 C1 H6 110.486
O3 C2 H7 106.882 O3 C2 H8 106.882
H4 C1 H5 108.403 H4 C1 H6 108.403
H5 C1 H6 108.187 H7 C2 H8 103.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.491      
2 C -0.143      
3 O -0.212      
4 H 0.152      
5 H 0.171      
6 H 0.171      
7 H 0.175      
8 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.939 0.692 0.000 2.058
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.420 0.222 0.000
y 0.222 -18.816 0.000
z 0.000 0.000 -18.083
Traceless
 xyz
x -3.970 0.222 0.000
y 0.222 1.435 0.000
z 0.000 0.000 2.535
Polar
3z2-r25.071
x2-y2-3.604
xy0.222
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.653 0.021 0.000
y 0.021 4.187 0.000
z 0.000 0.000 4.335


<r2> (average value of r2) Å2
<r2> 44.977
(<r2>)1/2 6.706