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

using model chemistry: M06-2X/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-2814.196840
Energy at 298.15K 
HF Energy-2814.196840
Nuclear repulsion energy165.693920
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 M06-2X/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 ?a 614 614 80.71 12.99 0.19 0.32
2 ?a 574 574 67.83 3.71 0.75 0.86
3 ?a 574 574 67.99 4.11 0.75 0.86
4 A1 3052 3052 17.53 197.13 0.00 0.00
5 A1 1125 1125 0.97 94.48 0.24 0.39
5 A1 300 300 15.53 24.08 0.15 0.27
6 E 3142 3142 8.45 108.33 0.75 0.86
6 E 3142 3142 8.45 108.52 0.75 0.86
7 E 1415 1415 0.00 0.30 0.75 0.86
7 E 1415 1415 0.00 0.35 0.75 0.85
8 E 99 99 25.79 1.61 0.75 0.86
8 E 99 99 25.85 1.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7776.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7776.0 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 M06-2X/aug-cc-pVDZ
ABC
5.30488 0.05441 0.05441

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.192
Mg2 0.000 0.000 -1.119
Br3 0.000 0.000 1.238
H4 0.000 1.025 -3.586
H5 0.888 -0.513 -3.586
H6 -0.888 -0.513 -3.586

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07264.43031.09841.09841.0984
Mg22.07262.35782.67142.67142.6714
Br34.43032.35784.93234.93234.9323
H41.09842.67144.93231.77571.7757
H51.09842.67144.93231.77571.7757
H61.09842.67144.93231.77571.7757

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 111.035
Mg2 C1 H5 111.035 Mg2 C1 H6 111.035
H4 C1 H5 107.864 H4 C1 H6 107.864
H5 C1 H6 107.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.518      
2 Mg 0.696      
3 Br -0.312      
4 H -0.301      
5 H -0.301      
6 H -0.301      


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 -2.295 2.295
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.912 0.000 0.000
y 0.000 -34.912 0.000
z 0.000 0.000 -43.209
Traceless
 xyz
x 4.149 0.000 0.000
y 0.000 4.149 0.000
z 0.000 0.000 -8.297
Polar
3z2-r2-16.595
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 7.595 0.000 0.000
y 0.000 7.594 0.002
z 0.000 0.002 12.207


<r2> (average value of r2) Å2
<r2> 195.112
(<r2>)1/2 13.968