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

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-2814.328223
Energy at 298.15K 
HF Energy-2814.328223
Nuclear repulsion energy166.250867
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 wB97X-D/cc-pVTZ
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 3034 2901 23.04 147.20 0.00 0.00
2 A1 1176 1124 0.00 72.61 0.17 0.29
3 A1 605 579 88.26 11.88 0.12 0.21
4 A1 300 287 14.80 16.93 0.16 0.28
5 E 3114 2977 13.36 117.84 0.75 0.86
5 E 3114 2977 13.38 118.12 0.75 0.86
6 E 1458 1394 0.00 0.83 0.75 0.86
6 E 1458 1394 0.00 0.83 0.75 0.86
7 E 587 561 78.95 5.67 0.75 0.86
7 E 587 561 78.91 5.68 0.75 0.86
8 E 100 96 29.58 0.74 0.75 0.86
8 E 100 96 29.57 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7817.1 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 7473.1 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 wB97X-D/cc-pVTZ
ABC
5.40808 0.05473 0.05473

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.182
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.235
H4 0.000 1.015 -3.585
H5 0.879 -0.508 -3.585
H6 -0.879 -0.508 -3.585

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06834.41691.09221.09221.0922
Mg22.06832.34862.67122.67122.6712
Br34.41692.34864.92514.92514.9251
H41.09222.67124.92511.75871.7587
H51.09222.67124.92511.75871.7587
H61.09222.67124.92511.75871.7587

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 111.618
Mg2 C1 H5 111.618 Mg2 C1 H6 111.618
H4 C1 H5 107.242 H4 C1 H6 107.242
H5 C1 H6 107.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.510      
2 Mg 0.603      
3 Br -0.385      
4 H 0.097      
5 H 0.097      
6 H 0.097      


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 -2.158 2.158
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.451 0.000 0.000
y 0.000 -34.451 0.000
z 0.000 0.000 -44.080
Traceless
 xyz
x 4.815 0.000 0.000
y 0.000 4.815 0.000
z 0.000 0.000 -9.629
Polar
3z2-r2-19.258
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 6.942 0.000 0.000
y 0.000 6.941 0.000
z 0.000 0.000 11.077


<r2> (average value of r2) Å2
<r2> 194.167
(<r2>)1/2 13.934