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

using model chemistry: M06-2X/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-2814.284390
Energy at 298.15K 
HF Energy-2814.284390
Nuclear repulsion energy166.741130
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/cc-pVTZ
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 3057 2920 15.31 155.53 0.00 0.00
2 A1 1153 1101 0.65 80.66 0.24 0.38
3 A1 623 595 79.85 13.39 0.14 0.25
4 A1 305 291 15.75 19.91 0.18 0.31
5 E 3140 2999 6.60 107.01 0.75 0.86
5 E 3140 2999 6.67 107.79 0.75 0.86
6 E 1454 1389 0.01 1.13 0.75 0.86
6 E 1454 1389 0.01 1.12 0.75 0.86
7 E 585 559 70.36 3.31 0.75 0.86
7 E 585 559 70.30 3.26 0.75 0.86
8 E 99 95 26.74 1.07 0.75 0.86
8 E 99 94 26.74 1.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7846.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 7494.2 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/cc-pVTZ
ABC
5.38820 0.05507 0.05507

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.174
Mg2 0.000 0.000 -1.111
Br3 0.000 0.000 1.231
H4 0.000 1.017 -3.567
H5 0.881 -0.509 -3.567
H6 -0.881 -0.509 -3.567

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06334.40491.09041.09041.0904
Mg22.06332.34162.65832.65832.6583
Br34.40492.34164.90434.90434.9043
H41.09042.65834.90431.76191.7619
H51.09042.65834.90431.76191.7619
H61.09042.65834.90431.76191.7619

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 111.110
Mg2 C1 H5 111.110 Mg2 C1 H6 111.110
H4 C1 H5 107.784 H4 C1 H6 107.784
H5 C1 H6 107.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.534      
2 Mg 0.526      
3 Br -0.341      
4 H 0.116      
5 H 0.116      
6 H 0.116      


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 -2.231 2.231
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.649 0.000 0.000
y 0.000 -34.649 0.000
z 0.000 0.000 -43.392
Traceless
 xyz
x 4.372 0.000 0.000
y 0.000 4.372 0.000
z 0.000 0.000 -8.743
Polar
3z2-r2-17.486
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 6.833 0.000 0.000
y 0.000 6.832 -0.001
z 0.000 -0.001 11.499


<r2> (average value of r2) Å2
<r2> 193.010
(<r2>)1/2 13.893