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

using model chemistry: CCSD(T)/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 CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-2812.060723
Energy at 298.15K 
HF Energy-2811.693248
Nuclear repulsion energy163.925799
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 CCSD(T)/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 2994 2882        
2 A1 1143 1100        
3 A1 596 573        
4 A1 294 283        
5 E 3081 2966        
5 E 3081 2965        
6 E 1424 1370        
6 E 1424 1370        
7 E 560 539        
7 E 560 539        
8 E 105 101        
8 E 105 101        

Unscaled Zero Point Vibrational Energy (zpe) 7682.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 7394.5 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 CCSD(T)/aug-cc-pVDZ
ABC
5.24718 0.05318 0.05318

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.231
Mg2 0.000 0.000 -1.127
Br3 0.000 0.000 1.252
H4 0.000 1.031 -3.638
H5 0.893 -0.515 -3.638
H6 -0.893 -0.515 -3.638

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.10344.48291.10841.10841.1084
Mg22.10342.37952.71412.71412.7141
Br34.48292.37954.99774.99774.9977
H41.10842.71414.99771.78541.7854
H51.10842.71414.99771.78541.7854
H61.10842.71414.99771.78541.7854

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 111.560
Mg2 C1 H5 111.560 Mg2 C1 H6 111.560
H4 C1 H5 107.304 H4 C1 H6 107.304
H5 C1 H6 107.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability