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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-29.521261
Energy at 298.15K-29.526404
HF Energy-29.521261
Nuclear repulsion energy45.369214
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/CEP-121G*
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 3389 3061 39.70      
2 A 3305 2986 50.87      
3 A 3244 2931 43.50      
4 A 3242 2929 88.77      
5 A 3176 2869 70.16      
6 A 1638 1480 8.54      
7 A 1631 1473 5.79      
8 A 1628 1471 2.32      
9 A 1584 1431 19.24      
10 A 1383 1249 122.51      
11 A 1363 1231 155.60      
12 A 1283 1159 5.61      
13 A 1226 1108 18.95      
14 A 1053 952 38.78      
15 A 868 785 19.05      
16 A 453 409 3.83      
17 A 287 259 13.58      
18 A 194 176 2.04      

Unscaled Zero Point Vibrational Energy (zpe) 15473.9 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 13979.1 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/CEP-121G*
ABC
1.59756 0.35714 0.31160

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.085 -0.536 -0.060
C2 -1.132 0.169 0.022
C3 1.200 0.228 0.090
H4 -1.928 -0.547 -0.143
H5 -1.253 0.624 1.003
H6 -1.185 0.944 -0.741
H7 2.111 -0.342 0.015
H8 1.173 1.227 -0.328

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.40891.35952.01452.06512.06552.03642.0882
C21.40892.33391.08261.08751.08933.28312.5602
C31.35952.33393.23052.64702.62501.07711.0829
H42.01451.08263.23051.77121.77014.04683.5766
H52.06511.08752.64701.77121.77393.63652.8315
H62.06551.08932.62501.77011.77393.61762.4102
H72.03643.28311.07714.04683.63653.61761.8595
H82.08822.56021.08293.57662.83152.41021.8595

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 107.181 O1 C2 H5 110.976
O1 C2 H6 110.901 O1 C3 H7 112.875
O1 C3 H8 117.057 C2 O1 C3 114.912
H4 C2 H5 109.406 H4 C2 H6 109.178
H5 C2 H6 109.155 H7 C3 H8 118.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.336      
2 C -0.271      
3 C -0.179      
4 H 0.179      
5 H 0.157      
6 H 0.148      
7 H 0.168      
8 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.612 1.251 -0.276 1.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.283 -0.103 -0.525
y -0.103 -19.989 -0.517
z -0.525 -0.517 -20.358
Traceless
 xyz
x 3.891 -0.103 -0.525
y -0.103 -1.669 -0.517
z -0.525 -0.517 -2.222
Polar
3z2-r2-4.443
x2-y23.706
xy-0.103
xz-0.525
yz-0.517


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.409 0.070 -0.009
y 0.070 3.566 -0.110
z -0.009 -0.110 3.198


<r2> (average value of r2) Å2
<r2> 42.224
(<r2>)1/2 6.498