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

using model chemistry: HSEh1PBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-2813.827573
Energy at 298.15K 
HF Energy-2813.827573
Nuclear repulsion energy166.184960
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/aug-cc-pVTZ
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 2917 19.87 187.13 0.00 0.00
2 A1 1145 1102 0.19 103.59 0.19 0.32
3 A1 607 584 80.90 13.28 0.17 0.30
4 A1 299 287 15.23 25.44 0.13 0.24
5 E 3116 2997 10.19 109.78 0.75 0.86
5 E 3116 2997 10.19 109.82 0.75 0.86
6 E 1442 1387 0.00 0.18 0.75 0.86
6 E 1442 1387 0.00 0.18 0.75 0.86
7 E 581 559 69.45 7.57 0.75 0.86
7 E 581 559 69.45 7.53 0.75 0.86
8 E 101 97 26.26 1.52 0.75 0.86
8 E 101 97 26.26 1.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7781.5 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 7484.2 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/aug-cc-pVTZ
ABC
5.38132 0.05469 0.05469

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.184
Mg2 0.000 0.000 -1.115
Br3 0.000 0.000 1.235
H4 0.000 1.018 -3.582
H5 0.882 -0.509 -3.582
H6 -0.882 -0.509 -3.582

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06954.41921.09281.09281.0928
Mg22.06952.34972.66882.66882.6688
Br34.41922.34974.92324.92324.9232
H41.09282.66884.92321.76301.7630
H51.09282.66884.92321.76301.7630
H61.09282.66884.92321.76301.7630

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 111.336
Mg2 C1 H5 111.336 Mg2 C1 H6 111.336
H4 C1 H5 107.544 H4 C1 H6 107.544
H5 C1 H6 107.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.896      
2 Mg 0.661      
3 Br -0.426      
4 H 0.220      
5 H 0.220      
6 H 0.220      


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 -2.160 2.160
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.613 0.000 0.000
y 0.000 -34.613 0.000
z 0.000 0.000 -43.821
Traceless
 xyz
x 4.604 0.000 0.000
y 0.000 4.604 0.000
z 0.000 0.000 -9.208
Polar
3z2-r2-18.415
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 7.901 0.000 0.000
y 0.000 7.901 0.000
z 0.000 0.000 12.263


<r2> (average value of r2) Å2
<r2> 194.263
(<r2>)1/2 13.938