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

using model chemistry: PBEPBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-154.178311
Energy at 298.15K-154.183106
HF Energy-154.178311
Nuclear repulsion energy73.882282
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/6-31G**
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' 3070 3028 19.41      
2 A' 2987 2946 11.83      
3 A' 2777 2739 34.53      
4 A' 1459 1439 4.75      
5 A' 1367 1348 24.27      
6 A' 1343 1324 17.47      
7 A' 1262 1244 15.88      
8 A' 1085 1071 6.31      
9 A' 1068 1054 13.40      
10 A' 873 861 2.54      
11 A' 421 415 7.74      
12 A" 3080 3037 15.47      
13 A" 2781 2743 9.29      
14 A" 1450 1430 5.57      
15 A" 1182 1166 0.22      
16 A" 825 813 0.04      
17 A" 264 260 26.17      
18 A" 102 101 19.31      

Unscaled Zero Point Vibrational Energy (zpe) 13697.6 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 13509.9 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/6-31G**
ABC
1.33015 0.31491 0.28098

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.039 -0.621 0.000
C2 0.000 0.503 0.000
O3 -1.306 0.129 0.000
H4 2.066 -0.218 0.000
H5 0.915 -1.257 0.891
H6 0.915 -1.257 -0.891
H7 0.158 1.205 0.864
H8 0.158 1.205 -0.864

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.53092.46281.10291.10151.10152.20392.2039
C21.53091.35842.18802.17432.17431.12441.1244
O32.46281.35843.39002.76602.76602.01172.0117
H41.10292.18803.39001.78811.78812.53182.5318
H51.10152.17432.76601.78811.78202.57553.1165
H61.10152.17432.76601.78811.78203.11652.5755
H72.20391.12442.01172.53182.57553.11651.7280
H82.20391.12442.01172.53183.11652.57551.7280

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 116.821 C1 C2 H7 111.275
C1 C2 H8 111.275 C2 C1 H4 111.314
C2 C1 H5 110.311 C2 C1 H6 110.311
O3 C2 H7 107.864 O3 C2 H8 107.864
H4 C1 H5 108.416 H4 C1 H6 108.416
H5 C1 H6 107.977 H7 C2 H8 100.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.379      
2 C -0.008      
3 O -0.303      
4 H 0.115      
5 H 0.140      
6 H 0.140      
7 H 0.148      
8 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.924 0.619 0.000 2.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.906 0.283 0.000
y 0.283 -18.232 0.000
z 0.000 0.000 -17.910
Traceless
 xyz
x -3.835 0.283 0.000
y 0.283 1.676 0.000
z 0.000 0.000 2.160
Polar
3z2-r24.319
x2-y2-3.674
xy0.283
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.531 0.042 0.000
y 0.042 3.906 0.000
z 0.000 0.000 3.852


<r2> (average value of r2) Å2
<r2> 51.367
(<r2>)1/2 7.167