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

using model chemistry: HF/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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-153.483364
Energy at 298.15K 
HF Energy-153.483364
Nuclear repulsion energy74.111127
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 HF/aug-cc-pVDZ
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' 3240 2950 40.83      
2 A' 3171 2888 13.48      
3 A' 3151 2869 34.08      
4 A' 1591 1449 4.10      
5 A' 1550 1411 13.35      
6 A' 1525 1388 13.51      
7 A' 1486 1353 4.86      
8 A' 1185 1079 6.25      
9 A' 1151 1048 34.59      
10 A' 954 869 2.84      
11 A' 455 414 6.02      
12 A" 3252 2961 48.28      
13 A" 3186 2901 14.38      
14 A" 1576 1435 3.40      
15 A" 1356 1234 0.26      
16 A" 915 833 0.00      
17 A" 270 246 3.76      
18 A" 180i 163i 13.45      

Unscaled Zero Point Vibrational Energy (zpe) 14916.2 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 13582.6 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 HF/aug-cc-pVDZ
ABC
1.29572 0.32165 0.28488

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.050 -0.570 0.000
C2 0.000 0.528 0.000
O3 -1.305 0.054 0.000
H4 2.051 -0.135 0.000
H5 0.947 -1.199 0.884
H6 0.947 -1.199 -0.884
H7 0.096 1.177 0.876
H8 0.096 1.177 -0.876

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51952.43651.09171.09021.09022.17432.1743
C21.51951.38872.15602.15962.15961.09421.0942
O32.43651.38873.36182.72492.72491.99821.9982
H41.09172.15603.36181.77041.77042.51192.5119
H51.09022.15962.72491.77041.76822.52373.0770
H61.09022.15962.72491.77041.76823.07702.5237
H72.17431.09421.99822.51192.52373.07701.7524
H82.17431.09421.99822.51193.07702.52371.7524

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 113.740 C1 C2 H7 111.544
C1 C2 H8 111.544 C2 C1 H4 110.237
C2 C1 H5 110.613 C2 C1 H6 110.613
O3 C2 H7 106.579 O3 C2 H8 106.579
H4 C1 H5 108.466 H4 C1 H6 108.466
H5 C1 H6 108.376 H7 C2 H8 106.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.223      
2 C 0.686      
3 O -0.582      
4 H -0.024      
5 H -0.038      
6 H -0.038      
7 H -0.113      
8 H -0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.880 0.638 0.000 1.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.495 0.061 0.000
y 0.061 -19.056 0.000
z 0.000 0.000 -18.058
Traceless
 xyz
x -3.938 0.061 0.000
y 0.061 1.220 0.000
z 0.000 0.000 2.718
Polar
3z2-r25.436
x2-y2-3.438
xy0.061
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.617 -0.084 0.000
y -0.084 4.303 0.000
z 0.000 0.000 4.116


<r2> (average value of r2) Å2
<r2> 51.084
(<r2>)1/2 7.147