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

using model chemistry: TPSSh/6-31G

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/6-31G
 hartrees
Energy at 0K-2811.505171
Energy at 298.15K 
HF Energy-2811.505171
Nuclear repulsion energy163.938717
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/6-31G
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 3024 2910 30.96 120.42 0.00 0.00
2 A1 1246 1199 0.11 60.89 0.04 0.08
3 A1 612 589 41.10 17.96 0.06 0.11
4 A1 296 285 12.22 20.62 0.19 0.32
5 E 3115 2997 18.15 149.08 0.75 0.86
5 E 3115 2997 18.15 149.07 0.75 0.86
6 E 1518 1460 0.31 7.42 0.75 0.86
6 E 1518 1460 0.31 7.42 0.75 0.86
7 E 658 633 104.80 4.58 0.75 0.86
7 E 658 633 104.80 4.57 0.75 0.86
8 E 129 125 26.64 0.05 0.75 0.86
8 E 129 125 26.64 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8009.0 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 7705.5 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/6-31G
ABC
5.30642 0.05334 0.05334

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.215
Mg2 0.000 0.000 -1.142
Br3 0.000 0.000 1.252
H4 0.000 1.025 -3.611
H5 0.888 -0.513 -3.611
H6 -0.888 -0.513 -3.611

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07334.46781.09861.09861.0986
Mg22.07332.39462.67282.67282.6728
Br34.46782.39464.96984.96984.9698
H41.09862.67284.96981.77541.7754
H51.09862.67284.96981.77541.7754
H61.09862.67284.96981.77541.7754

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 111.082
Mg2 C1 H5 111.082 Mg2 C1 H6 111.082
H4 C1 H5 107.814 H4 C1 H6 107.814
H5 C1 H6 107.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.871      
2 Mg 0.786      
3 Br -0.434      
4 H 0.173      
5 H 0.173      
6 H 0.173      


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 -3.009 3.009
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 5.160 0.000 0.000
y 0.000 5.159 0.000
z 0.000 0.000 10.707


<r2> (average value of r2) Å2
<r2> 198.379
(<r2>)1/2 14.085