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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-2811.783515
Energy at 298.15K 
HF Energy-2811.783515
Nuclear repulsion energy166.355054
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 B3LYPultrafine/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 3035 2908 18.60 105.22 0.00 0.00
2 A1 1209 1158 4.70 55.87 0.08 0.14
3 A1 607 582 64.85 11.29 0.08 0.16
4 A1 304 291 13.48 21.25 0.18 0.31
5 E 3112 2981 13.95 125.90 0.75 0.86
5 E 3112 2981 13.95 125.91 0.75 0.86
6 E 1495 1433 0.03 4.64 0.75 0.86
6 E 1495 1433 0.03 4.64 0.75 0.86
7 E 622 596 83.94 2.28 0.75 0.86
7 E 622 596 83.94 2.28 0.75 0.86
8 E 125 119 22.03 0.53 0.75 0.86
8 E 125 119 22.03 0.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7931.4 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 7598.3 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 B3LYPultrafine/6-31G*
ABC
5.34996 0.05475 0.05475

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.187
Mg2 0.000 0.000 -1.107
Br3 0.000 0.000 1.234
H4 0.000 1.021 -3.588
H5 0.884 -0.510 -3.588
H6 -0.884 -0.510 -3.588

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07984.42081.09681.09681.0968
Mg22.07982.34102.68262.68262.6826
Br34.42082.34104.92864.92864.9286
H41.09682.68264.92861.76821.7682
H51.09682.68264.92861.76821.7682
H61.09682.68264.92861.76821.7682

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 111.441
Mg2 C1 H5 111.441 Mg2 C1 H6 111.441
H4 C1 H5 107.432 H4 C1 H6 107.432
H5 C1 H6 107.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.754      
2 Mg 0.559      
3 Br -0.290      
4 H 0.161      
5 H 0.161      
6 H 0.161      


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 -2.115 2.115
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.277 0.000 0.000
y 0.000 -34.277 0.000
z 0.000 0.000 -41.854
Traceless
 xyz
x 3.788 0.000 0.000
y 0.000 3.788 0.000
z 0.000 0.000 -7.576
Polar
3z2-r2-15.153
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 6.164 0.000 0.000
y 0.000 6.164 0.000
z 0.000 0.000 10.686


<r2> (average value of r2) Å2
<r2> 193.664
(<r2>)1/2 13.916