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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G**
 hartrees
Energy at 0K-2811.788371
Energy at 298.15K 
HF Energy-2811.788371
Nuclear repulsion energy166.385459
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 B3LYPultrafine/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 A1 3034 2915 18.02 111.29 0.00 0.00
2 A1 1190 1143 5.53 53.05 0.08 0.14
3 A1 607 584 66.23 11.37 0.08 0.16
4 A1 304 292 13.29 21.29 0.18 0.31
5 E 3115 2993 13.12 124.36 0.75 0.86
5 E 3115 2993 13.12 124.37 0.75 0.86
6 E 1477 1419 0.12 4.46 0.75 0.86
6 E 1477 1419 0.12 4.46 0.75 0.86
7 E 616 592 82.47 2.42 0.75 0.86
7 E 616 592 82.47 2.42 0.75 0.86
8 E 125 120 21.97 0.53 0.75 0.86
8 E 125 120 21.97 0.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7901.2 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 7591.5 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 B3LYPultrafine/6-31G**
ABC
5.36002 0.05476 0.05476

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.187
Mg2 0.000 0.000 -1.107
Br3 0.000 0.000 1.233
H4 0.000 1.020 -3.587
H5 0.883 -0.510 -3.587
H6 -0.883 -0.510 -3.587

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07934.42021.09561.09561.0956
Mg22.07932.34092.68102.68102.6810
Br34.42022.34094.92704.92704.9270
H41.09562.68104.92701.76651.7665
H51.09562.68104.92701.76651.7665
H61.09562.68104.92701.76651.7665

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 111.417
Mg2 C1 H5 111.417 Mg2 C1 H6 111.417
H4 C1 H5 107.457 H4 C1 H6 107.457
H5 C1 H6 107.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.599      
2 Mg 0.541      
3 Br -0.289      
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 -2.121 2.121
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.289 0.000 0.000
y 0.000 -34.289 0.000
z 0.000 0.000 -41.758
Traceless
 xyz
x 3.735 0.000 0.000
y 0.000 3.735 0.000
z 0.000 0.000 -7.469
Polar
3z2-r2-14.939
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 6.193 0.000 0.000
y 0.000 6.193 0.000
z 0.000 0.000 10.715


<r2> (average value of r2) Å2
<r2> 193.586
(<r2>)1/2 13.914