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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-53.979869
Energy at 298.15K 
HF Energy-53.979869
Nuclear repulsion energy24.023448
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/LANL2DZ
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 3015 2898 37.73 126.01 0.00 0.00
2 A1 1242 1193 15.81 116.16 0.11 0.19
3 A1 611 588 55.66 22.87 0.15 0.26
4 A1 281 270 13.36 21.77 0.22 0.36
5 E 3111 2991 23.01 139.37 0.75 0.86
5 E 3111 2991 23.01 139.37 0.75 0.86
6 E 1484 1426 3.58 6.45 0.75 0.86
6 E 1484 1426 3.58 6.45 0.75 0.86
7 E 660 634 108.52 5.50 0.75 0.86
7 E 660 634 108.53 5.49 0.75 0.86
8 E 104 100 27.98 0.00 0.75 0.86
8 E 104 100 27.98 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7933.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 7625.2 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/LANL2DZ
ABC
5.30448 0.05242 0.05242

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.233
Mg2 0.000 0.000 -1.165
Br3 0.000 0.000 1.265
H4 0.000 1.025 -3.632
H5 0.888 -0.513 -3.632
H6 -0.888 -0.513 -3.632

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06844.49801.10001.10001.1000
Mg22.06842.42962.67162.67162.6716
Br34.49802.42965.00285.00285.0028
H41.10002.67165.00281.77581.7758
H51.10002.67165.00281.77581.7758
H61.10002.67165.00281.77581.7758

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 111.249
Mg2 C1 H5 111.249 Mg2 C1 H6 111.249
H4 C1 H5 107.637 H4 C1 H6 107.637
H5 C1 H6 107.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.109      
2 Mg 0.838      
3 Br -0.425      
4 H 0.232      
5 H 0.232      
6 H 0.232      


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 -3.089 3.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.398 0.000 0.000
y 0.000 -29.398 0.000
z 0.000 0.000 -39.236
Traceless
 xyz
x 4.919 0.000 0.000
y 0.000 4.919 0.000
z 0.000 0.000 -9.839
Polar
3z2-r2-19.677
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 4.970 0.000 0.000
y 0.000 4.970 0.000
z 0.000 0.000 10.090


<r2> (average value of r2) Å2
<r2> 139.762
(<r2>)1/2 11.822