return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-154.378793
Energy at 298.15K-154.383697
HF Energy-154.378793
Nuclear repulsion energy77.106801
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 B3LYP/6-31+G**
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 3276 3159 12.91      
2 A 3152 3039 18.54      
3 A 3121 3009 24.63      
4 A 3078 2968 49.17      
5 A 3015 2907 59.76      
6 A 1505 1451 17.56      
7 A 1498 1445 5.21      
8 A 1492 1438 6.22      
9 A 1460 1408 3.05      
10 A 1289 1242 160.33      
11 A 1250 1205 28.05      
12 A 1169 1127 2.06      
13 A 1136 1096 7.90      
14 A 959 925 35.65      
15 A 586 565 55.66      
16 A 428 413 4.35      
17 A 296 286 7.41      
18 A 164 158 2.85      

Unscaled Zero Point Vibrational Energy (zpe) 14437.3 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 13920.5 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 B3LYP/6-31+G**
ABC
1.58305 0.35280 0.30685

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.092 -0.540 -0.042
C2 -1.144 0.168 0.015
C3 1.208 0.227 0.070
H4 -1.936 -0.565 -0.145
H5 -1.271 0.644 0.995
H6 -1.188 0.934 -0.771
H7 2.128 -0.336 -0.016
H8 1.149 1.270 -0.234

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.42501.35852.02992.08122.08352.04712.1051
C21.42502.35291.09091.09681.09823.31112.5562
C31.35852.35293.24852.67832.63581.08261.0884
H42.02991.09093.24851.78941.78814.07243.5905
H52.08121.09682.67831.78941.79213.67942.7858
H62.08351.09822.63581.78811.79213.63082.4219
H72.04713.31111.08264.07243.67943.63081.8939
H82.10512.55621.08843.59052.78582.42191.8939

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 106.822 O1 C2 H5 110.560
O1 C2 H6 110.662 O1 C3 H7 113.510
O1 C3 H8 118.287 C2 O1 C3 115.388
H4 C2 H5 109.756 H4 C2 H6 109.537
H5 C2 H6 109.464 H7 C3 H8 121.469
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.266      
2 C -0.234      
3 C -0.194      
4 H 0.154      
5 H 0.149      
6 H 0.138      
7 H 0.136      
8 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.989 1.106 -0.352 1.525
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.074 -0.206 -0.573
y -0.206 -20.217 -0.453
z -0.573 -0.453 -21.151
Traceless
 xyz
x 3.610 -0.206 -0.573
y -0.206 -1.105 -0.453
z -0.573 -0.453 -2.505
Polar
3z2-r2-5.011
x2-y23.144
xy-0.206
xz-0.573
yz-0.453


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.500 0.162 0.023
y 0.162 4.049 0.017
z 0.023 0.017 4.214


<r2> (average value of r2) Å2
<r2> 49.305
(<r2>)1/2 7.022