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

using model chemistry: TPSSh/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 TPSSh/6-311G*
 hartrees
Energy at 0K-2814.117606
Energy at 298.15K 
HF Energy-2814.117606
Nuclear repulsion energy165.196438
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 TPSSh/6-311G*
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 3004 2893 33.83 125.20 0.00 0.00
2 A1 1209 1164 1.39 91.88 0.09 0.16
3 A1 597 575 80.05 12.98 0.09 0.16
4 A1 296 285 15.62 20.43 0.19 0.32
5 E 3073 2960 22.54 142.24 0.75 0.86
5 E 3073 2960 22.54 142.24 0.75 0.86
6 E 1488 1433 0.06 2.20 0.75 0.86
6 E 1488 1433 0.06 2.20 0.75 0.86
7 E 600 578 84.08 4.89 0.75 0.86
7 E 600 578 84.07 4.88 0.75 0.86
8 E 107 103 27.68 0.49 0.75 0.86
8 E 107 103 27.68 0.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7821.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 7533.4 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 TPSSh/6-311G*
ABC
5.39321 0.05398 0.05398

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.206
Mg2 0.000 0.000 -1.118
Br3 0.000 0.000 1.243
H4 0.000 1.017 -3.616
H5 0.881 -0.508 -3.616
H6 -0.881 -0.508 -3.616

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08754.44891.09651.09651.0965
Mg22.08752.36132.69702.69702.6970
Br34.44892.36134.96464.96464.9646
H41.09652.69704.96461.76111.7611
H51.09652.69704.96461.76111.7611
H61.09652.69704.96461.76111.7611

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 111.987
Mg2 C1 H5 111.987 Mg2 C1 H6 111.987
H4 C1 H5 106.842 H4 C1 H6 106.842
H5 C1 H6 106.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.038      
2 Mg 0.755      
3 Br -0.395      
4 H 0.226      
5 H 0.226      
6 H 0.226      


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 -2.242 2.242
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.226 0.000 0.000
y 0.000 6.226 0.000
z 0.000 0.000 11.272


<r2> (average value of r2) Å2
<r2> 196.650
(<r2>)1/2 14.023