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

using model chemistry: TPSSh/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2814.165303
Energy at 298.15K 
HF Energy-2814.165303
Nuclear repulsion energy165.691913
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/Def2TZVPP
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 3006 3006 25.99 150.26 0.00 0.00
2 A1 1167 1167 1.95 95.91 0.14 0.24
3 A1 597 597 80.48 13.54 0.11 0.19
4 A1 295 295 14.41 23.39 0.16 0.27
5 E 3079 3079 16.33 121.10 0.75 0.86
5 E 3079 3079 16.33 121.16 0.75 0.86
6 E 1460 1460 0.15 0.99 0.75 0.86
6 E 1460 1460 0.15 0.98 0.75 0.86
7 E 577 577 73.08 5.20 0.75 0.86
7 E 577 577 73.08 5.20 0.75 0.86
8 E 100 100 26.15 1.09 0.75 0.86
8 E 100 100 26.15 1.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7748.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7748.0 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/Def2TZVPP
ABC
5.37860 0.05433 0.05433

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

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 -1.116
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
C12.08014.43521.09461.09461.0946
Mg22.08012.35502.68272.68272.6827
Br34.43522.35504.94304.94304.9430
H41.09462.68274.94301.76351.7635
H51.09462.68274.94301.76351.7635
H61.09462.68274.94301.76351.7635

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 111.538
Mg2 C1 H5 111.538 Mg2 C1 H6 111.538
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/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.574      
2 Mg 0.779      
3 Br -0.477      
4 H 0.091      
5 H 0.091      
6 H 0.091      


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 -2.093 2.093
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 7.392 0.000 0.000
y 0.000 7.391 0.000
z 0.000 0.000 11.756


<r2> (average value of r2) Å2
<r2> 195.458
(<r2>)1/2 13.981