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

using model chemistry: B97D3/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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-2815.564420
Energy at 298.15K 
HF Energy-2815.564420
Nuclear repulsion energy164.433950
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-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 2964 2919 28.81 198.13 0.00 0.00
2 A1 1127 1110 3.49 130.31 0.19 0.32
3 A1 583 574 76.66 16.36 0.18 0.30
4 A1 282 277 16.23 30.50 0.13 0.23
5 E 3042 2995 15.07 122.32 0.75 0.86
5 E 3042 2995 15.07 122.39 0.75 0.86
6 E 1423 1402 0.14 0.19 0.75 0.86
6 E 1423 1402 0.13 0.18 0.75 0.86
7 E 575 566 65.33 8.76 0.75 0.86
7 E 575 566 65.32 8.49 0.75 0.86
8 E 96 94 24.48 2.08 0.75 0.86
8 E 96 94 24.48 2.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7613.0 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 7496.5 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-pVTZ
ABC
5.34211 0.05350 0.05350

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.220
Mg2 0.000 0.000 -1.127
Br3 0.000 0.000 1.249
H4 0.000 1.022 -3.619
H5 0.885 -0.511 -3.619
H6 -0.885 -0.511 -3.619

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09294.46901.09671.09671.0967
Mg22.09292.37622.69292.69292.6929
Br34.46902.37624.97384.97384.9738
H41.09672.69294.97381.76951.7695
H51.09672.69294.97381.76951.7695
H61.09672.69294.97381.76951.7695

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 111.320
Mg2 C1 H5 111.320 Mg2 C1 H6 111.320
H4 C1 H5 107.561 H4 C1 H6 107.561
H5 C1 H6 107.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.875      
2 Mg 0.789      
3 Br -0.491      
4 H 0.193      
5 H 0.193      
6 H 0.193      


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 -2.210 2.210
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.799 0.000 0.000
y 0.000 -34.799 0.000
z 0.000 0.000 -43.984
Traceless
 xyz
x 4.593 0.000 0.000
y 0.000 4.593 0.000
z 0.000 0.000 -9.185
Polar
3z2-r2-18.370
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 8.401 0.000 0.000
y 0.000 8.400 0.000
z 0.000 0.000 13.280


<r2> (average value of r2) Å2
<r2> 198.123
(<r2>)1/2 14.076