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

using model chemistry: M06-2X/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2783.142289
Energy at 298.15K 
HF Energy-2783.142289
Nuclear repulsion energy175.302501
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/STO-3G
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 3349 3349 0.78 49.39 0.00 0.00
2 A1 1487 1487 0.49 0.95 0.39 0.56
3 A1 849 849 94.52 3.45 0.29 0.45
4 A1 411 411 10.15 7.23 0.30 0.46
5 E 3520 3520 6.63 36.74 0.75 0.86
5 E 3520 3520 6.60 36.86 0.75 0.86
6 E 1755 1755 0.07 15.84 0.75 0.86
6 E 1755 1755 0.07 15.81 0.75 0.86
7 E 749 749 47.25 0.49 0.75 0.86
7 E 749 749 47.22 0.50 0.75 0.86
8 E 127 127 44.59 0.05 0.75 0.86
8 E 127 127 44.59 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9198.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9198.4 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 M06-2X/STO-3G
ABC
5.44987 0.06116 0.06116

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.007
Mg2 0.000 0.000 -1.045
Br3 0.000 0.000 1.167
H4 0.000 1.011 -3.423
H5 0.876 -0.506 -3.423
H6 -0.876 -0.506 -3.423

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C11.96214.17461.09361.09361.0936
Mg21.96212.21252.58412.58412.5841
Br34.17462.21254.70054.70054.7005
H41.09362.58414.70051.75191.7519
H51.09362.58414.70051.75191.7519
H61.09362.58414.70051.75191.7519

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 112.348
Mg2 C1 H5 112.348 Mg2 C1 H6 112.348
H4 C1 H5 106.448 H4 C1 H6 106.448
H5 C1 H6 106.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.463      
2 Mg 0.849      
3 Br -0.460      
4 H 0.025      
5 H 0.025      
6 H 0.025      


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 -2.101 2.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.191 0.000 0.000
y 0.000 -29.191 0.000
z 0.000 0.000 -42.306
Traceless
 xyz
x 6.557 0.000 0.000
y 0.000 6.557 0.000
z 0.000 0.000 -13.115
Polar
3z2-r2-26.230
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 1.382 0.000 0.000
y 0.000 1.385 -0.002
z 0.000 -0.002 4.974


<r2> (average value of r2) Å2
<r2> 174.247
(<r2>)1/2 13.200