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

using model chemistry: wB97X-D/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/cc-pVQZ
 hartrees
Energy at 0K-2814.336185
Energy at 298.15K 
HF Energy-2814.336185
Nuclear repulsion energy166.380136
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 wB97X-D/cc-pVQZ
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 3033 3033 22.71 164.39 0.00 0.00
2 A1 1174 1174 0.07 80.56 0.20 0.33
3 A1 606 606 89.18 12.23 0.13 0.24
4 A1 300 300 14.89 18.87 0.14 0.25
5 E 3113 3113 13.16 109.80 0.75 0.86
5 E 3113 3113 13.16 110.27 0.75 0.86
6 E 1456 1456 0.01 0.30 0.75 0.86
6 E 1456 1456 0.01 0.30 0.75 0.86
7 E 583 583 77.97 6.18 0.75 0.86
7 E 583 583 77.94 6.21 0.75 0.86
8 E 100 100 29.40 0.97 0.75 0.86
8 E 100 100 29.39 0.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7808.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7808.8 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 wB97X-D/cc-pVQZ
ABC
5.41507 0.05483 0.05483

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.179
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.234
H4 0.000 1.015 -3.582
H5 0.879 -0.507 -3.582
H6 -0.879 -0.507 -3.582

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06534.41251.09181.09181.0918
Mg22.06532.34722.66862.66862.6686
Br34.41252.34724.92114.92114.9211
H41.09182.66864.92111.75751.7575
H51.09182.66864.92111.75751.7575
H61.09182.66864.92111.75751.7575

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 111.655
Mg2 C1 H5 111.655 Mg2 C1 H6 111.655
H4 C1 H5 107.202 H4 C1 H6 107.202
H5 C1 H6 107.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.113      
2 Mg 0.571      
3 Br -0.383      
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 -2.137 2.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.474 0.000 0.000
y 0.000 -34.474 0.000
z 0.000 0.000 -44.125
Traceless
 xyz
x 4.826 0.000 0.000
y 0.000 4.826 0.000
z 0.000 0.000 -9.651
Polar
3z2-r2-19.302
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 7.495 0.000 0.000
y 0.000 7.494 0.000
z 0.000 0.000 11.473


<r2> (average value of r2) Å2
<r2> 193.890
(<r2>)1/2 13.924