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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-153.525099
Energy at 298.15K 
HF Energy-153.525099
Nuclear repulsion energy72.899467
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/3-21G
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' 3125 3016 20.72      
2 A' 3060 2952 11.60      
3 A' 2958 2855 25.56      
4 A' 1564 1509 7.70      
5 A' 1479 1427 13.41      
6 A' 1456 1405 11.99      
7 A' 1366 1318 3.02      
8 A' 1114 1075 5.51      
9 A' 1004 969 16.92      
10 A' 852 822 0.08      
11 A' 391 378 5.77      
12 A" 3135 3025 19.95      
13 A" 2975 2870 7.76      
14 A" 1555 1500 4.88      
15 A" 1290 1244 1.08      
16 A" 907 875 0.09      
17 A" 247 238 8.80      
18 A" 362i 349i 50.50      

Unscaled Zero Point Vibrational Energy (zpe) 14057.1 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 13563.7 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/3-21G
ABC
1.26229 0.30978 0.27415

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.080 -0.558 0.000
C2 0.000 0.534 0.000
O3 -1.339 0.030 0.000
H4 2.080 -0.111 0.000
H5 0.975 -1.189 0.888
H6 0.975 -1.189 -0.888
H7 0.104 1.196 0.878
H8 0.104 1.196 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.53532.48921.09531.09421.09422.19062.1906
C21.53531.43092.17752.16932.16931.10451.1045
O32.48921.43093.42192.76172.76172.05242.0524
H41.09532.17753.42191.78071.78072.52682.5268
H51.09422.16932.76171.78071.77502.53903.0926
H61.09422.16932.76171.78071.77503.09262.5390
H72.19061.10452.05242.52682.53903.09261.7561
H82.19061.10452.05242.52683.09262.53901.7561

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 114.059 C1 C2 H7 111.113
C1 C2 H8 111.113 C2 C1 H4 110.624
C2 C1 H5 110.045 C2 C1 H6 110.045
O3 C2 H7 107.390 O3 C2 H8 107.390
H4 C1 H5 108.835 H4 C1 H6 108.835
H5 C1 H6 108.408 H7 C2 H8 105.305
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.579      
2 C -0.167      
3 O -0.288      
4 H 0.183      
5 H 0.205      
6 H 0.205      
7 H 0.220      
8 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.819 0.734 0.000 1.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.962 0.068 0.000
y 0.068 -18.338 0.000
z 0.000 0.000 -17.860
Traceless
 xyz
x -3.863 0.068 0.000
y 0.068 1.573 0.000
z 0.000 0.000 2.291
Polar
3z2-r24.581
x2-y2-3.624
xy0.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.795 0.078 0.000
y 0.078 3.299 0.000
z 0.000 0.000 3.480


<r2> (average value of r2) Å2
<r2> 52.098
(<r2>)1/2 7.218