return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-2813.726124
Energy at 298.15K 
HF Energy-2813.726124
Nuclear repulsion energy165.752122
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 HSEh1PBE/6-311G*
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 3032 2910 24.59 126.62 0.00 0.00
2 A1 1194 1146 0.02 85.37 0.10 0.18
3 A1 609 584 79.63 13.16 0.10 0.18
4 A1 300 287 16.15 19.84 0.20 0.33
5 E 3113 2988 14.53 132.26 0.75 0.86
5 E 3113 2988 14.53 132.28 0.75 0.86
6 E 1474 1414 0.43 2.19 0.75 0.86
6 E 1474 1414 0.43 2.19 0.75 0.86
7 E 604 580 83.78 3.97 0.75 0.86
7 E 604 580 83.78 3.97 0.75 0.86
8 E 109 105 27.34 0.47 0.75 0.86
8 E 109 105 27.34 0.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7867.3 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 7549.5 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 HSEh1PBE/6-311G*
ABC
5.39700 0.05439 0.05439

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.192
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.239
H4 0.000 1.016 -3.600
H5 0.880 -0.508 -3.600
H6 -0.880 -0.508 -3.600

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07574.43071.09511.09511.0951
Mg22.07572.35502.68332.68332.6833
Br34.43072.35504.94394.94394.9439
H41.09512.68334.94391.76051.7605
H51.09512.68334.94391.76051.7605
H61.09512.68334.94391.76051.7605

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 111.852
Mg2 C1 H5 111.852 Mg2 C1 H6 111.852
H4 C1 H5 106.989 H4 C1 H6 106.989
H5 C1 H6 106.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.088      
2 Mg 0.745      
3 Br -0.387      
4 H 0.243      
5 H 0.243      
6 H 0.243      


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 -2.287 2.287
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.527 0.000 0.000
y 0.000 -34.527 0.000
z 0.000 0.000 -43.759
Traceless
 xyz
x 4.616 0.000 0.000
y 0.000 4.616 0.000
z 0.000 0.000 -9.232
Polar
3z2-r2-18.464
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 6.151 0.000 0.000
y 0.000 6.151 -0.000
z 0.000 -0.000 11.161


<r2> (average value of r2) Å2
<r2> 195.245
(<r2>)1/2 13.973