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

using model chemistry: B97D3/aug-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 B97D3/aug-cc-pVDZ
 hartrees
Energy at 0K-2815.468288
Energy at 298.15K 
HF Energy-2815.468288
Nuclear repulsion energy163.456773
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 B97D3/aug-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 2958 2958 31.64 202.77 0.00 0.00
2 A1 1105 1105 5.52 133.35 0.19 0.32
3 A1 579 579 78.20 15.82 0.16 0.28
4 A1 279 279 16.09 29.84 0.15 0.25
5 E 3047 3047 16.46 121.27 0.75 0.86
5 E 3047 3047 16.46 121.17 0.75 0.86
6 E 1389 1389 0.19 0.16 0.75 0.86
6 E 1389 1389 0.19 0.17 0.75 0.86
7 E 555 555 65.46 8.48 0.75 0.86
7 E 555 555 65.47 8.50 0.75 0.86
8 E 96 96 23.72 1.85 0.75 0.86
8 E 96 96 23.73 1.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7548.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7548.4 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 B97D3/aug-cc-pVDZ
ABC
5.26951 0.05290 0.05290

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.236
Mg2 0.000 0.000 -1.135
Br3 0.000 0.000 1.256
H4 0.000 1.029 -3.641
H5 0.891 -0.514 -3.641
H6 -0.891 -0.514 -3.641

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.10124.49261.10531.10531.1053
Mg22.10122.39132.70862.70862.7086
Br34.49262.39135.00395.00395.0039
H41.10532.70865.00391.78161.7816
H51.10532.70865.00391.78161.7816
H61.10532.70865.00391.78161.7816

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 111.464
Mg2 C1 H5 111.464 Mg2 C1 H6 111.464
H4 C1 H5 107.407 H4 C1 H6 107.407
H5 C1 H6 107.407
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.547      
2 Mg 0.566      
3 Br -0.302      
4 H -0.270      
5 H -0.270      
6 H -0.270      


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 -2.291 2.291
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.029 0.000 0.000
y 0.000 -35.029 0.000
z 0.000 0.000 -43.643
Traceless
 xyz
x 4.307 0.000 0.000
y 0.000 4.307 0.000
z 0.000 0.000 -8.614
Polar
3z2-r2-17.228
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 8.196 0.000 0.000
y 0.000 8.196 0.000
z 0.000 0.000 13.397


<r2> (average value of r2) Å2
<r2> 200.150
(<r2>)1/2 14.147