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

using model chemistry: TPSSh/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 TPSSh/6-311+G(3df,2p)
 hartrees
Energy at 0K-2814.129923
Energy at 298.15K 
HF Energy-2814.129923
Nuclear repulsion energy165.741434
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/6-311+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 3001 3001 29.25 171.13 0.00 0.00
2 A1 1168 1168 1.53 111.22 0.18 0.30
3 A1 597 597 81.71 13.06 0.16 0.27
4 A1 296 296 14.53 24.80 0.14 0.24
5 E 3073 3073 17.70 119.40 0.75 0.86
5 E 3073 3073 17.70 119.39 0.75 0.86
6 E 1462 1462 0.09 0.17 0.75 0.86
6 E 1462 1462 0.09 0.17 0.75 0.86
7 E 575 575 70.07 9.30 0.75 0.86
7 E 575 575 70.07 9.30 0.75 0.86
8 E 100 100 26.99 1.47 0.75 0.86
8 E 100 100 26.99 1.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7740.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7740.6 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/6-311+G(3df,2p)
ABC
5.37880 0.05436 0.05436

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.196
Mg2 0.000 0.000 -1.115
Br3 0.000 0.000 1.239
H4 0.000 1.018 -3.598
H5 0.882 -0.509 -3.598
H6 -0.882 -0.509 -3.598

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08044.43431.09461.09461.0946
Mg22.08042.35392.68292.68292.6829
Br34.43432.35394.94214.94214.9421
H41.09462.68294.94211.76341.7634
H51.09462.68294.94211.76341.7635
H61.09462.68294.94211.76341.7635

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 111.537
Mg2 C1 H5 111.537 Mg2 C1 H6 111.537
H4 C1 H5 107.328 H4 C1 H6 107.328
H5 C1 H6 107.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.813      
2 Mg 0.856      
3 Br -0.380      
4 H 0.113      
5 H 0.113      
6 H 0.113      


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 -2.110 2.110
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 7.810 0.000 0.000
y 0.000 7.810 0.000
z 0.000 0.000 12.347


<r2> (average value of r2) Å2
<r2> 195.436
(<r2>)1/2 13.980