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

using model chemistry: PBE1PBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-2813.732498
Energy at 298.15K 
HF Energy-2813.732498
Nuclear repulsion energy165.621132
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 PBE1PBE/cc-pVDZ
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 3041 2924 16.38 134.81 0.00 0.00
2 A1 1135 1092 1.05 57.12 0.10 0.18
3 A1 607 584 73.93 12.62 0.09 0.16
4 A1 300 289 14.53 19.04 0.19 0.32
5 E 3140 3019 7.08 130.99 0.75 0.86
5 E 3140 3019 7.08 131.00 0.75 0.86
6 E 1421 1366 0.02 3.43 0.75 0.86
6 E 1421 1366 0.02 3.43 0.75 0.86
7 E 583 560 83.93 4.12 0.75 0.86
7 E 583 560 83.93 4.12 0.75 0.86
8 E 104 100 24.58 0.61 0.75 0.86
8 E 104 100 24.58 0.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7789.2 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 7489.3 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 PBE1PBE/cc-pVDZ
ABC
5.28257 0.05437 0.05437

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.193
Mg2 0.000 0.000 -1.118
Br3 0.000 0.000 1.239
H4 0.000 1.027 -3.594
H5 0.890 -0.514 -3.594
H6 -0.890 -0.514 -3.594

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07444.43131.10311.10311.1031
Mg22.07442.35692.68092.68092.6809
Br34.43132.35694.94114.94114.9411
H41.10312.68094.94111.77941.7794
H51.10312.68094.94111.77941.7794
H61.10312.68094.94111.77941.7794

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 111.362
Mg2 C1 H5 111.362 Mg2 C1 H6 111.362
H4 C1 H5 107.517 H4 C1 H6 107.517
H5 C1 H6 107.517
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.386      
2 Mg 0.531      
3 Br -0.326      
4 H 0.061      
5 H 0.061      
6 H 0.061      


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 -2.191 2.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.297 0.000 0.000
y 0.000 -34.297 0.000
z 0.000 0.000 -42.670
Traceless
 xyz
x 4.187 0.000 0.000
y 0.000 4.187 0.000
z 0.000 0.000 -8.373
Polar
3z2-r2-16.746
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 6.045 0.000 0.000
y 0.000 6.045 0.000
z 0.000 0.000 10.701


<r2> (average value of r2) Å2
<r2> 194.957
(<r2>)1/2 13.963