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

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-152.587659
Energy at 298.15K-152.592680
HF Energy-152.587659
Nuclear repulsion energy76.466483
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/3-21G
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 3409 3087 28.83      
2 A 3307 2994 27.84      
3 A 3260 2953 24.51      
4 A 3244 2938 60.15      
5 A 3189 2888 37.30      
6 A 1689 1529 8.39      
7 A 1675 1517 6.14      
8 A 1644 1488 1.29      
9 A 1593 1443 16.85      
10 A 1341 1215 32.07      
11 A 1315 1191 157.34      
12 A 1267 1147 2.36      
13 A 1198 1085 23.63      
14 A 986 893 23.10      
15 A 757 685 26.07      
16 A 425 385 7.61      
17 A 262 237 15.87      
18 A 185 167 2.94      

Unscaled Zero Point Vibrational Energy (zpe) 15372.1 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 13921.0 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/3-21G
ABC
1.60606 0.33984 0.29832

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.086 -0.532 -0.063
C2 -1.166 0.171 0.025
C3 1.234 0.227 0.080
H4 -1.938 -0.553 -0.180
H5 -1.310 0.588 1.013
H6 -1.215 0.969 -0.708
H7 2.131 -0.358 0.062
H8 1.235 1.228 -0.316

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.43811.38442.02722.08832.08912.05672.1174
C21.43812.40161.07821.08271.08493.33912.6453
C31.38442.40163.27742.73422.67841.07051.0763
H42.02721.07823.27741.76681.76624.08113.6413
H52.08831.08272.73421.76681.76523.69332.9415
H62.08911.08492.67841.76621.76523.68142.4950
H72.05673.33911.07054.08113.69333.68141.8599
H82.11742.64531.07633.64132.94152.49501.8599

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 106.472 O1 C2 H5 111.094
O1 C2 H6 111.023 O1 C3 H7 113.195
O1 C3 H8 118.200 C2 O1 C3 116.599
H4 C2 H5 109.695 H4 C2 H6 109.474
H5 C2 H6 109.043 H7 C3 H8 120.070
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.648      
2 C -0.254      
3 C -0.077      
4 H 0.223      
5 H 0.197      
6 H 0.186      
7 H 0.204      
8 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.608 1.598 -0.126 1.714
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.478 -0.082 -0.361
y -0.082 -20.046 -0.456
z -0.361 -0.456 -20.225
Traceless
 xyz
x 4.658 -0.082 -0.361
y -0.082 -2.195 -0.456
z -0.361 -0.456 -2.462
Polar
3z2-r2-4.925
x2-y24.569
xy-0.082
xz-0.361
yz-0.456


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.146 0.073 0.036
y 0.073 3.032 -0.173
z 0.036 -0.173 2.266


<r2> (average value of r2) Å2
<r2> 49.695
(<r2>)1/2 7.049