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

using model chemistry: HSEh1PBE/TZVP

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/TZVP
 hartrees
Energy at 0K-2813.761201
Energy at 298.15K 
HF Energy-2813.761201
Nuclear repulsion energy165.130267
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/TZVP
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 3043 2922 23.66 165.11 0.00 0.00
2 A1 1177 1130 0.12 79.59 0.30 0.46
3 A1 596 572 71.12 16.94 0.20 0.33
4 A1 290 278 17.53 21.62 0.27 0.43
5 E 3130 3005 10.34 124.88 0.75 0.86
5 E 3130 3005 10.34 124.90 0.75 0.86
6 E 1449 1392 2.32 9.91 0.75 0.86
6 E 1449 1392 2.32 9.91 0.75 0.86
7 E 617 592 81.23 0.50 0.75 0.86
7 E 617 592 81.23 0.50 0.75 0.86
8 E 102 98 32.68 0.51 0.75 0.86
8 E 102 98 32.68 0.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7850.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 7537.1 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/TZVP
ABC
5.38414 0.05400 0.05400

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.202
Mg2 0.000 0.000 -1.125
Br3 0.000 0.000 1.243
H4 0.000 1.018 -3.602
H5 0.881 -0.509 -3.602
H6 -0.881 -0.509 -3.602

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07724.44561.09341.09341.0934
Mg22.07722.36832.67812.67812.6781
Br34.44562.36834.95134.95134.9513
H41.09342.67814.95131.76261.7626
H51.09342.67814.95131.76261.7626
H61.09342.67814.95131.76261.7626

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 111.459
Mg2 C1 H5 111.459 Mg2 C1 H6 111.459
H4 C1 H5 107.412 H4 C1 H6 107.412
H5 C1 H6 107.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.960      
2 Mg 1.099      
3 Br -0.603      
4 H 0.155      
5 H 0.155      
6 H 0.155      


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 -2.675 2.675
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.611 0.000 0.000
y 0.000 -34.611 0.000
z 0.000 0.000 -44.988
Traceless
 xyz
x 5.189 0.000 0.000
y 0.000 5.189 0.000
z 0.000 0.000 -10.378
Polar
3z2-r2-20.756
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 5.250 0.000 0.000
y 0.000 5.250 -0.000
z 0.000 -0.000 11.040


<r2> (average value of r2) Å2
<r2> 196.634
(<r2>)1/2 14.023