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All results from a given calculation for CH3MgBr (Methyl Magnesium Bromide)

using model chemistry: wB97X-D/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/6-31G
 hartrees
Energy at 0K-2811.622422
Energy at 298.15K 
HF Energy-2811.622422
Nuclear repulsion energy164.665946
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 wB97X-D/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 A1 3051 3051 25.53 109.82 0.00 0.00
2 A1 1265 1265 2.93 45.61 0.07 0.13
3 A1 634 634 46.08 17.32 0.08 0.15
4 A1 302 302 13.41 17.08 0.20 0.33
5 E 3147 3147 14.40 136.93 0.75 0.86
5 E 3147 3147 14.42 136.97 0.75 0.86
6 E 1517 1517 1.45 8.73 0.75 0.86
6 E 1517 1517 1.45 8.73 0.75 0.86
7 E 672 672 111.72 3.19 0.75 0.86
7 E 672 672 111.73 3.19 0.75 0.86
8 E 132 132 30.49 0.02 0.75 0.86
8 E 132 132 30.49 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8093.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8093.5 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 wB97X-D/6-31G
ABC
5.32737 0.05386 0.05386

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.197
Mg2 0.000 0.000 -1.139
Br3 0.000 0.000 1.247
H4 0.000 1.023 -3.594
H5 0.886 -0.512 -3.594
H6 -0.886 -0.512 -3.594

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.05834.44351.09741.09741.0974
Mg22.05832.38532.65992.65992.6599
Br34.44352.38534.94754.94754.9475
H41.09742.65994.94751.77191.7719
H51.09742.65994.94751.77191.7719
H61.09742.65994.94751.77191.7719

picture of Methyl Magnesium Bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 Mg2 Br3 180.000 Mg2 C1 H4 111.212
Mg2 C1 H5 111.212 Mg2 C1 H6 111.212
H4 C1 H5 107.676 H4 C1 H6 107.676
H5 C1 H6 107.676
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.904      
2 Mg 0.809      
3 Br -0.444      
4 H 0.180      
5 H 0.180      
6 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.156 3.156
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.397 0.000 0.000
y 0.000 -34.397 0.000
z 0.000 0.000 -44.399
Traceless
 xyz
x 5.001 0.000 0.000
y 0.000 5.001 0.000
z 0.000 0.000 -10.002
Polar
3z2-r2-20.004
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.868 0.000 0.000
y 0.000 4.868 0.000
z 0.000 0.000 9.925


<r2> (average value of r2) Å2
<r2> 196.728
(<r2>)1/2 14.026