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

using model chemistry: wB97X-D/6-31G**

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/6-31G**
 hartrees
Energy at 0K-2811.770071
Energy at 298.15K 
HF Energy-2811.770071
Nuclear repulsion energy166.835115
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/6-31G**
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 616 616 91.84 2.67 0.75 0.86
2 ?a 616 616 91.90 2.67 0.75 0.86
3 ?a 605 605 77.81 11.63 0.09 0.16
4 A1 3054 3054 19.28 103.27 0.00 0.00
5 A1 1206 1206 0.52 44.66 0.08 0.15
5 A1 306 306 12.85 16.42 0.16 0.28
6 E 3141 3141 13.46 121.05 0.75 0.86
6 E 3141 3141 13.47 121.09 0.75 0.86
7 E 1482 1482 0.02 4.63 0.75 0.86
7 E 1482 1482 0.02 4.63 0.75 0.86
8 E 126 126 27.71 0.45 0.75 0.86
8 E 126 126 27.72 0.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7950.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7950.5 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/6-31G**
ABC
5.38384 0.05508 0.05508

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.176
Mg2 0.000 0.000 -1.104
Br3 0.000 0.000 1.230
H4 0.000 1.018 -3.582
H5 0.881 -0.509 -3.582
H6 -0.881 -0.509 -3.582

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07174.40591.09561.09561.0956
Mg22.07172.33422.67842.67842.6784
Br34.40592.33424.91824.91824.9182
H41.09562.67844.91821.76261.7626
H51.09562.67844.91821.76261.7626
H61.09562.67844.91821.76261.7626

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 111.746
Mg2 C1 H5 111.746 Mg2 C1 H6 111.746
H4 C1 H5 107.104 H4 C1 H6 107.104
H5 C1 H6 107.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.648      
2 Mg 0.555      
3 Br -0.301      
4 H 0.131      
5 H 0.131      
6 H 0.131      


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 -2.122 2.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.082 0.000 0.000
y 0.000 -34.082 0.000
z 0.000 0.000 -42.487
Traceless
 xyz
x 4.203 0.000 0.000
y 0.000 4.203 0.000
z 0.000 0.000 -8.405
Polar
3z2-r2-16.811
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 6.132 0.000 0.000
y 0.000 6.132 0.000
z 0.000 0.000 9.948


<r2> (average value of r2) Å2
<r2> 192.731
(<r2>)1/2 13.883