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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-154.353146
Energy at 298.15K-154.357946
HF Energy-154.353146
Nuclear repulsion energy74.219423
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 mPW1PW91/aug-cc-pVDZ
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' 3147 3016 19.52      
2 A' 3062 2934 12.89      
3 A' 2932 2810 23.57      
4 A' 1470 1408 5.38      
5 A' 1399 1341 31.74      
6 A' 1369 1312 12.83      
7 A' 1314 1259 12.48      
8 A' 1106 1060 18.35      
9 A' 1090 1045 0.62      
10 A' 903 865 0.27      
11 A' 434 416 6.67      
12 A" 3157 3026 17.50      
13 A" 2950 2827 5.06      
14 A" 1460 1399 6.57      
15 A" 1231 1179 0.01      
16 A" 848 813 0.04      
17 A" 258 247 14.18      
18 A" 75 72 11.95      

Unscaled Zero Point Vibrational Energy (zpe) 14101.7 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 13513.6 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 mPW1PW91/aug-cc-pVDZ
ABC
1.33068 0.31930 0.28455

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.042 -0.598 0.000
C2 0.000 0.507 0.000
O3 -1.302 0.100 0.000
H4 2.054 -0.173 0.000
H5 0.932 -1.230 0.889
H6 0.932 -1.230 -0.889
H7 0.122 1.191 0.868
H8 0.122 1.191 -0.868

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51822.44491.09821.09661.09662.19102.1910
C21.51821.36372.16382.16232.16231.11201.1120
O32.44491.36373.36702.74712.74711.99261.9926
H41.09822.16383.36701.78021.78022.51972.5197
H51.09662.16232.74711.78021.77812.55373.0994
H61.09662.16232.74711.78021.77813.09942.5537
H72.19101.11201.99262.51972.55373.09941.7351
H82.19101.11201.99262.51973.09942.55371.7351

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 115.961 C1 C2 H7 111.895
C1 C2 H8 111.895 C2 C1 H4 110.555
C2 C1 H5 110.533 C2 C1 H6 110.533
O3 C2 H7 106.755 O3 C2 H8 106.755
H4 C1 H5 108.405 H4 C1 H6 108.405
H5 C1 H6 108.335 H7 C2 H8 102.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.354      
2 C 0.700      
3 O -0.484      
4 H -0.070      
5 H -0.085      
6 H -0.085      
7 H -0.165      
8 H -0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.016 0.653 0.000 2.119
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.503 0.163 0.000
y 0.163 -18.788 0.000
z 0.000 0.000 -18.075
Traceless
 xyz
x -4.072 0.163 0.000
y 0.163 1.502 0.000
z 0.000 0.000 2.571
Polar
3z2-r25.142
x2-y2-3.716
xy0.163
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.317 -0.029 0.000
y -0.029 4.750 0.000
z 0.000 0.000 4.407


<r2> (average value of r2) Å2
<r2> 51.156
(<r2>)1/2 7.152