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

using model chemistry: B2PLYP/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 B2PLYP/6-311G**
 hartrees
Energy at 0K-2813.595541
Energy at 298.15K 
HF Energy-2813.492517
Nuclear repulsion energy165.637513
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 B2PLYP/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 3036 3036 21.42 142.37 0.00 0.00
2 A1 1184 1184 1.18 78.40 0.12 0.21
3 A1 607 607 77.99 12.82 0.10 0.18
4 A1 301 301 15.48 20.57 0.20 0.34
5 E 3115 3115 15.00 130.68 0.75 0.86
5 E 3115 3115 15.00 130.68 0.75 0.86
6 E 1467 1467 0.01 2.36 0.75 0.86
6 E 1467 1467 0.01 2.36 0.75 0.86
7 E 602 602 77.76 4.24 0.75 0.86
7 E 602 602 77.76 4.24 0.75 0.86
8 E 109 109 27.27 0.52 0.75 0.86
8 E 109 109 27.27 0.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7857.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7857.9 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 B2PLYP/6-311G**
ABC
5.37247 0.05429 0.05429

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.198
Mg2 0.000 0.000 -1.117
Br3 0.000 0.000 1.239
H4 0.000 1.019 -3.596
H5 0.882 -0.509 -3.596
H6 -0.882 -0.509 -3.596

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08124.43731.09391.09391.0939
Mg22.08122.35622.68072.68072.6807
Br34.43732.35624.94194.94194.9419
H41.09392.68074.94191.76451.7645
H51.09392.68074.94191.76451.7645
H61.09392.68074.94191.76451.7645

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 111.359
Mg2 C1 H5 111.359 Mg2 C1 H6 111.359
H4 C1 H5 107.519 H4 C1 H6 107.519
H5 C1 H6 107.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.643      
2 Mg 0.668      
3 Br -0.389      
4 H 0.121      
5 H 0.121      
6 H 0.121      


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 -2.243 2.243
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.742 0.000 0.000
y 0.000 -34.742 0.000
z 0.000 0.000 -44.511
Traceless
 xyz
x 4.885 0.000 0.000
y 0.000 4.885 0.000
z 0.000 0.000 -9.769
Polar
3z2-r2-19.538
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 6.120 0.000 0.000
y 0.000 6.120 0.000
z 0.000 0.000 11.177


<r2> (average value of r2) Å2
<r2> 195.714
(<r2>)1/2 13.990