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

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-2814.244092
Energy at 298.15K 
HF Energy-2814.244092
Nuclear repulsion energy165.313301
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3013 2911 28.71 128.48 0.00 0.00
2 A1 1200 1159 0.91 84.50 0.11 0.20
3 A1 601 580 75.55 13.62 0.11 0.20
4 A1 296 286 16.22 21.93 0.21 0.34
5 E 3083 2979 17.76 137.86 0.75 0.86
5 E 3083 2979 17.76 137.86 0.75 0.86
6 E 1480 1430 0.27 2.54 0.75 0.86
6 E 1480 1430 0.27 2.54 0.75 0.86
7 E 610 589 77.66 3.59 0.75 0.86
7 E 610 589 77.66 3.59 0.75 0.86
8 E 109 105 25.85 0.54 0.75 0.86
8 E 109 105 25.85 0.54 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7834.8 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 7570.8 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/6-311G*
ABC
5.38904 0.05408 0.05408

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.202
Mg2 0.000 0.000 -1.120
Br3 0.000 0.000 1.242
H4 0.000 1.017 -3.607
H5 0.881 -0.509 -3.607
H6 -0.881 -0.509 -3.607

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08204.44401.09471.09471.0947
Mg22.08202.36192.68672.68672.6867
Br34.44402.36194.95424.95424.9542
H41.09472.68674.95421.76181.7618
H51.09472.68674.95421.76181.7618
H61.09472.68674.95421.76181.7618

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 111.697
Mg2 C1 H5 111.697 Mg2 C1 H6 111.697
H4 C1 H5 107.157 H4 C1 H6 107.157
H5 C1 H6 107.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.013      
2 Mg 0.726      
3 Br -0.383      
4 H 0.223      
5 H 0.223      
6 H 0.223      


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 -2.297 2.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.723 0.000 0.000
y 0.000 -34.723 0.000
z 0.000 0.000 -43.926
Traceless
 xyz
x 4.602 0.000 0.000
y 0.000 4.602 0.000
z 0.000 0.000 -9.204
Polar
3z2-r2-18.407
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 6.188 0.000 0.000
y 0.000 6.189 0.000
z 0.000 0.000 11.494


<r2> (average value of r2) Å2
<r2> 196.287
(<r2>)1/2 14.010