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

using model chemistry: BLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-2814.212306
Energy at 298.15K 
HF Energy-2814.212306
Nuclear repulsion energy164.680288
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 BLYP/6-311+G(3df,2p)
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 2944 2928 26.86 190.39 0.00 0.01
2 A1 1124 1118 4.32 131.01 0.20 0.33
3 A1 580 577 73.52 15.53 0.18 0.31
4 A1 285 284 15.26 32.67 0.16 0.27
5 E 3013 2997 12.68 119.13 0.75 0.86
5 E 3013 2997 12.68 119.14 0.75 0.86
6 E 1421 1414 0.00 0.17 0.75 0.86
6 E 1421 1414 0.00 0.17 0.75 0.86
7 E 581 578 59.21 7.95 0.75 0.86
7 E 581 578 59.22 7.96 0.75 0.86
8 E 96 95 22.69 1.91 0.75 0.86
8 E 96 95 22.69 1.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7578.6 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 7536.9 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 BLYP/6-311+G(3df,2p)
ABC
5.31211 0.05367 0.05367

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.216
Mg2 0.000 0.000 -1.125
Br3 0.000 0.000 1.247
H4 0.000 1.024 -3.610
H5 0.887 -0.512 -3.610
H6 -0.887 -0.512 -3.610

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09084.46271.09781.09781.0978
Mg22.09082.37192.68802.68802.6880
Br34.46272.37194.96394.96394.9639
H41.09782.68804.96391.77451.7745
H51.09782.68804.96391.77451.7745
H61.09782.68804.96391.77451.7745

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 111.051
Mg2 C1 H5 111.051 Mg2 C1 H6 111.051
H4 C1 H5 107.846 H4 C1 H6 107.846
H5 C1 H6 107.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.803      
2 Mg 0.649      
3 Br -0.300      
4 H 0.151      
5 H 0.151      
6 H 0.151      


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 -2.233 2.233
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.203 0.000 0.000
y 0.000 -35.203 0.000
z 0.000 0.000 -43.906
Traceless
 xyz
x 4.351 0.000 0.000
y 0.000 4.351 0.000
z 0.000 0.000 -8.702
Polar
3z2-r2-17.405
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 8.143 0.000 0.000
y 0.000 8.143 0.000
z 0.000 0.000 13.784


<r2> (average value of r2) Å2
<r2> 197.699
(<r2>)1/2 14.061