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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-154.302330
Energy at 298.15K-154.307309
HF Energy-154.302330
Nuclear repulsion energy77.403798
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 B3PW91/6-31G*
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 3277 3135 23.28      
2 A 3168 3031 22.29      
3 A 3125 2989 26.97      
4 A 3092 2958 54.16      
5 A 3026 2895 54.53      
6 A 1528 1462 15.11      
7 A 1519 1454 3.36      
8 A 1512 1447 4.90      
9 A 1475 1411 5.59      
10 A 1316 1259 146.40      
11 A 1265 1210 18.05      
12 A 1182 1131 1.13      
13 A 1151 1101 5.46      
14 A 993 950 30.83      
15 A 669 640 39.87      
16 A 430 411 3.92      
17 A 300 287 9.35      
18 A 178 170 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 14602.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 13970.1 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 B3PW91/6-31G*
ABC
1.57290 0.35813 0.31086

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.089 -0.542 -0.046
C2 -1.132 0.168 0.016
C3 1.197 0.229 0.080
H4 -1.932 -0.557 -0.147
H5 -1.262 0.643 0.997
H6 -1.179 0.942 -0.764
H7 2.118 -0.335 -0.022
H8 1.145 1.261 -0.269

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.41421.35562.02392.07862.08002.03962.1008
C21.41422.33081.09201.09781.09983.28902.5410
C31.35562.33083.23432.65732.62081.08431.0905
H42.02391.09203.23431.78851.78694.05823.5754
H52.07861.09782.65731.78851.78863.66332.7883
H62.08001.09982.62081.78691.78863.61302.3975
H72.03963.28901.08434.05823.66333.61301.8852
H82.10082.54101.09053.57542.78832.39751.8852

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 107.012 O1 C2 H5 111.055
O1 C2 H6 111.038 O1 C3 H7 112.958
O1 C3 H8 117.966 C2 O1 C3 114.582
H4 C2 H5 109.519 H4 C2 H6 109.225
H5 C2 H6 108.953 H7 C3 H8 120.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.388      
2 C -0.267      
3 C -0.174      
4 H 0.187      
5 H 0.173      
6 H 0.163      
7 H 0.165      
8 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.825 1.016 -0.303 1.343
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.378 -0.172 -0.521
y -0.172 -19.375 -0.368
z -0.521 -0.368 -20.030
Traceless
 xyz
x 3.325 -0.172 -0.521
y -0.172 -1.171 -0.368
z -0.521 -0.368 -2.154
Polar
3z2-r2-4.308
x2-y22.997
xy-0.172
xz-0.521
yz-0.368


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.803 0.105 0.019
y 0.105 3.498 -0.124
z 0.019 -0.124 2.772


<r2> (average value of r2) Å2
<r2> 48.355
(<r2>)1/2 6.954