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

using model chemistry: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-152.700305
Energy at 298.15K-152.705089
HF Energy-152.700305
Nuclear repulsion energy76.363119
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 LSDA/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 3221 3168 11.01      
2 A 3090 3039 8.81      
3 A 3052 3002 10.84      
4 A 2991 2942 41.19      
5 A 2931 2882 42.57      
6 A 1501 1476 18.40      
7 A 1476 1452 15.74      
8 A 1462 1438 5.99      
9 A 1419 1395 0.34      
10 A 1259 1239 83.50      
11 A 1188 1168 2.42      
12 A 1117 1098 0.33      
13 A 1088 1070 3.73      
14 A 940 925 21.05      
15 A 469 461 89.40      
16 A 413 406 4.86      
17 A 293 288 5.46      
18 A 168 165 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 14037.5 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 13807.2 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 LSDA/3-21G
ABC
1.51645 0.34985 0.30189

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.092 -0.558 -0.038
C2 -1.148 0.173 0.015
C3 1.212 0.233 0.058
H4 -1.953 -0.555 -0.162
H5 -1.287 0.654 1.003
H6 -1.181 0.961 -0.767
H7 2.148 -0.322 0.009
H8 1.149 1.295 -0.211

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.44051.37502.04932.11042.11212.06992.1405
C21.44052.36121.10011.10761.11033.33292.5662
C31.37502.36123.26982.70432.63421.08951.0970
H42.04931.10013.26981.80641.80574.11163.6126
H52.11041.10762.70431.80641.79883.70642.7955
H62.11211.11032.63421.80571.79883.65152.4190
H72.06993.33291.08954.11163.70643.65151.9138
H82.14052.56621.09703.61262.79552.41901.9138

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 106.771 O1 C2 H5 111.163
O1 C2 H6 111.136 O1 C3 H7 113.753
O1 C3 H8 119.551 C2 O1 C3 113.977
H4 C2 H5 109.816 H4 C2 H6 109.547
H5 C2 H6 108.395 H7 C3 H8 122.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.397      
2 C -0.420      
3 C -0.251      
4 H 0.242      
5 H 0.225      
6 H 0.213      
7 H 0.209      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.049 1.106 -0.296 1.553
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.214 -0.248 -0.458
y -0.248 -19.487 -0.331
z -0.458 -0.331 -20.386
Traceless
 xyz
x 3.722 -0.248 -0.458
y -0.248 -1.187 -0.331
z -0.458 -0.331 -2.536
Polar
3z2-r2-5.071
x2-y23.273
xy-0.248
xz-0.458
yz-0.331


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.890 0.112 0.025
y 0.112 3.292 -0.111
z 0.025 -0.111 2.428


<r2> (average value of r2) Å2
<r2> 49.405
(<r2>)1/2 7.029