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

using model chemistry: B3PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-152.329864
Energy at 298.15K-152.334772
HF Energy-152.329864
Nuclear repulsion energy75.436822
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/STO-3G
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 3520 3115 3.87      
2 A 3469 3070 0.56      
3 A 3425 3031 5.13      
4 A 3325 2943 1.47      
5 A 3269 2893 9.16      
6 A 1659 1468 7.99      
7 A 1645 1456 5.21      
8 A 1614 1428 4.48      
9 A 1567 1387 17.78      
10 A 1329 1176 54.68      
11 A 1305 1155 4.14      
12 A 1177 1041 0.95      
13 A 1167 1033 2.80      
14 A 1024 907 1.64      
15 A 776 687 21.37      
16 A 468 414 2.26      
17 A 340 301 6.32      
18 A 171 151 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 15625.0 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 13828.2 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/STO-3G
ABC
1.39637 0.34953 0.29792

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.098 -0.596 -0.046
C2 -1.147 0.186 0.014
C3 1.208 0.258 0.096
H4 -1.974 -0.518 -0.192
H5 -1.299 0.637 1.016
H6 -1.161 0.994 -0.745
H7 2.152 -0.285 -0.060
H8 1.135 1.278 -0.316

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.47101.40732.07822.14402.14542.07742.1585
C21.47102.35721.10521.10891.10913.33282.5509
C31.40732.35723.28742.69692.61951.09971.1027
H42.07821.10523.28741.80191.80394.13433.5922
H52.14401.10892.69691.80191.80163.73012.8472
H62.14541.10912.61951.80391.80163.61662.3528
H72.07743.33281.09974.13433.73013.61661.8817
H82.15852.55091.10273.59222.84722.35281.8817

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 106.688 O1 C2 H5 111.649
O1 C2 H6 111.747 O1 C3 H7 111.328
O1 C3 H8 118.117 C2 O1 C3 109.940
H4 C2 H5 108.939 H4 C2 H6 109.103
H5 C2 H6 108.644 H7 C3 H8 117.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.153      
2 C -0.133      
3 C -0.104      
4 H 0.094      
5 H 0.090      
6 H 0.085      
7 H 0.066      
8 H 0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.889 0.888 -0.329 1.299
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.271 -0.253 -0.564
y -0.253 -18.080 -0.295
z -0.564 -0.295 -18.059
Traceless
 xyz
x 1.798 -0.253 -0.564
y -0.253 -0.915 -0.295
z -0.564 -0.295 -0.883
Polar
3z2-r2-1.767
x2-y21.809
xy-0.253
xz-0.564
yz-0.295


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.176 0.147 0.079
y 0.147 1.813 -0.033
z 0.079 -0.033 1.192


<r2> (average value of r2) Å2
<r2> 49.103
(<r2>)1/2 7.007