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

using model chemistry: ROHF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/6-311G*
 hartrees
Energy at 0K-153.495208
Energy at 298.15K-153.500398
HF Energy-153.495208
Nuclear repulsion energy74.360896
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 ROHF/6-311G*
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' 3244 2775 52.33      
2 A' 3184 2725 15.44      
3 A' 3164 2707 44.19      
4 A' 1631 1395 5.13      
5 A' 1586 1357 9.26      
6 A' 1558 1333 18.58      
7 A' 1520 1301 6.40      
8 A' 1203 1029 8.47      
9 A' 1158 991 36.77      
10 A' 960 822 2.79      
11 A' 457 391 6.79      
12 A" 3256 2786 62.85      
13 A" 3192 2731 19.27      
14 A" 1617 1383 3.27      
15 A" 1378 1179 0.52      
16 A" 943 807 0.16      
17 A" 315 269 16.14      
18 A" 206 176 3.84      

Unscaled Zero Point Vibrational Energy (zpe) 15284.9 cm-1
Scaled (by 0.8556) Zero Point Vibrational Energy (zpe) 13077.7 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 ROHF/6-311G*
ABC
1.30175 0.32392 0.28653

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.046 -0.572 0.000
C2 0.000 0.530 0.000
O3 -1.300 0.057 0.000
H4 2.048 -0.154 0.000
H5 0.939 -1.200 0.877
H6 0.939 -1.200 -0.877
H7 0.099 1.176 0.871
H8 0.099 1.176 -0.871

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51872.42781.08581.08431.08432.16962.1696
C21.51871.38302.15922.15462.15461.08841.0884
O32.42781.38303.35412.71272.71271.99121.9912
H41.08582.15923.35411.75861.75862.51512.5151
H51.08432.15462.71271.75861.75502.51943.0664
H61.08432.15462.71271.75861.75503.06642.5194
H72.16961.08841.99122.51512.51943.06641.7411
H82.16961.08841.99122.51513.06642.51941.7411

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 113.502 C1 C2 H7 111.586
C1 C2 H8 111.586 C2 C1 H4 110.903
C2 C1 H5 110.627 C2 C1 H6 110.627
O3 C2 H7 106.748 O3 C2 H8 106.748
H4 C1 H5 108.269 H4 C1 H6 108.269
H5 C1 H6 108.048 H7 C2 H8 106.234
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.622      
2 C -0.176      
3 O -0.262      
4 H 0.202      
5 H 0.214      
6 H 0.214      
7 H 0.215      
8 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.837 0.674 0.000 1.957
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.384 0.164 0.000
y 0.164 -18.957 0.000
z 0.000 0.000 -18.010
Traceless
 xyz
x -3.900 0.164 0.000
y 0.164 1.240 0.000
z 0.000 0.000 2.660
Polar
3z2-r25.321
x2-y2-3.427
xy0.164
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 50.795
(<r2>)1/2 7.127