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All results from a given calculation for CH3OCH2 (methoxymethyl radical)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-154.339257
Energy at 298.15K-154.344240
HF Energy-154.339257
Nuclear repulsion energy77.536210
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 B3PW91/6-311G*
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 3253 3132 22.17      
2 A 3151 3033 24.67      
3 A 3099 2983 29.32      
4 A 3072 2957 60.92      
5 A 3009 2897 59.43      
6 A 1517 1460 18.36      
7 A 1508 1452 3.78      
8 A 1500 1444 7.80      
9 A 1465 1411 2.35      
10 A 1305 1257 143.81      
11 A 1265 1217 22.93      
12 A 1181 1137 1.40      
13 A 1150 1107 6.88      
14 A 986 949 34.44      
15 A 642 618 46.75      
16 A 430 414 3.69      
17 A 302 290 8.67      
18 A 181 175 2.04      

Unscaled Zero Point Vibrational Energy (zpe) 14507.3 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 13966.2 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 B3PW91/6-311G*
ABC
1.58245 0.35898 0.31167

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.090 -0.540 -0.044
C2 -1.131 0.168 0.015
C3 1.196 0.228 0.077
H4 -1.929 -0.561 -0.125
H5 -1.251 0.660 0.987
H6 -1.186 0.923 -0.780
H7 2.116 -0.334 -0.027
H8 1.139 1.263 -0.255

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.41291.35172.02072.07422.07592.03632.0971
C21.41292.32891.08951.09581.09753.28602.5356
C31.35172.32893.22922.64672.62521.08291.0891
H42.02071.08953.22921.78491.78354.05233.5721
H52.07421.09582.64671.78491.78713.65442.7608
H62.07591.09752.62521.78351.78713.61262.4084
H72.03633.28601.08294.05233.65443.61261.8864
H82.09712.53561.08913.57212.76082.40841.8864

picture of methoxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H4 106.997 O1 C2 H5 110.917
O1 C2 H6 110.946 O1 C3 H7 113.058
O1 C3 H8 118.056 C2 O1 C3 114.771
H4 C2 H5 109.532 H4 C2 H6 109.276
H5 C2 H6 109.134 H7 C3 H8 120.572
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.260      
2 C -0.462      
3 C -0.337      
4 H 0.229      
5 H 0.216      
6 H 0.211      
7 H 0.213      
8 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.864 1.009 -0.342 1.372
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.622 -0.180 -0.558
y -0.180 -19.612 -0.407
z -0.558 -0.407 -20.441
Traceless
 xyz
x 3.404 -0.180 -0.558
y -0.180 -1.081 -0.407
z -0.558 -0.407 -2.324
Polar
3z2-r2-4.647
x2-y22.990
xy-0.180
xz-0.558
yz-0.407


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.992 0.099 -0.009
y 0.099 3.669 -0.089
z -0.009 -0.089 3.221


<r2> (average value of r2) Å2
<r2> 48.433
(<r2>)1/2 6.959