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

using model chemistry: BLYP/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 BLYP/cc-pVDZ
 hartrees
Energy at 0K-2814.185166
Energy at 298.15K 
HF Energy-2814.185166
Nuclear repulsion energy164.164899
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 BLYP/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 2939 2944 20.84 145.71 0.00 0.00
2 A1 1104 1106 10.42 58.50 0.09 0.16
3 A1 583 584 62.24 13.06 0.08 0.15
4 A1 287 288 13.52 25.88 0.19 0.32
5 E 3020 3025 11.25 139.75 0.75 0.86
5 E 3020 3025 11.25 139.76 0.75 0.86
6 E 1388 1390 0.09 3.88 0.75 0.86
6 E 1388 1390 0.09 3.88 0.75 0.86
7 E 577 578 71.99 3.87 0.75 0.86
7 E 577 578 71.99 3.87 0.75 0.86
8 E 98 99 18.80 0.77 0.75 0.86
8 E 98 99 18.80 0.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7539.1 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 7551.2 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 BLYP/cc-pVDZ
ABC
5.19607 0.05342 0.05342

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.221
Mg2 0.000 0.000 -1.129
Br3 0.000 0.000 1.250
H4 0.000 1.036 -3.622
H5 0.897 -0.518 -3.622
H6 -0.897 -0.518 -3.622

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09134.47051.11081.11081.1108
Mg22.09132.37922.69912.69912.6991
Br34.47052.37924.98054.98054.9805
H41.11082.69914.98051.79421.7942
H51.11082.69914.98051.79421.7942
H61.11082.69914.98051.79421.7942

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 111.166
Mg2 C1 H5 111.166 Mg2 C1 H6 111.166
H4 C1 H5 107.725 H4 C1 H6 107.725
H5 C1 H6 107.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.239      
2 Mg 0.450      
3 Br -0.286      
4 H 0.025      
5 H 0.025      
6 H 0.025      


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 -2.137 2.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.759 0.000 0.000
y 0.000 -34.759 0.000
z 0.000 0.000 -41.988
Traceless
 xyz
x 3.615 0.000 0.000
y 0.000 3.615 0.000
z 0.000 0.000 -7.229
Polar
3z2-r2-14.458
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 6.440 0.000 0.000
y 0.000 6.440 0.000
z 0.000 0.000 11.914


<r2> (average value of r2) Å2
<r2> 198.002
(<r2>)1/2 14.071