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

using model chemistry: CCSD(T)/6-31+G**

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)/6-31+G**
 hartrees
Energy at 0K-2809.531028
Energy at 298.15K 
HF Energy-2809.201080
Nuclear repulsion energy165.231857
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)/6-31+G**
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 3062 2938        
2 A1 1197 1149        
3 A1 606 581        
4 A1 300 288        
5 E 3155 3028        
5 E 3155 3028        
6 E 1487 1427        
6 E 1487 1426        
7 E 607 583        
7 E 607 583        
8 E 157 151        
8 E 157 150        

Unscaled Zero Point Vibrational Energy (zpe) 7988.4 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 7665.7 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)/6-31+G**
ABC
5.34660 0.05400 0.05400

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.209
Mg2 0.000 0.000 -1.119
Br3 0.000 0.000 1.242
H4 0.000 1.021 -3.602
H5 0.884 -0.511 -3.602
H6 -0.884 -0.511 -3.602

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08974.45121.09441.09441.0944
Mg22.08972.36152.68512.68512.6851
Br34.45122.36154.95134.95134.9513
H41.09442.68514.95131.76881.7688
H51.09442.68514.95131.76881.7688
H61.09442.68514.95131.76881.7688

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 111.078
Mg2 C1 H5 111.078 Mg2 C1 H6 111.078
H4 C1 H5 107.818 H4 C1 H6 107.818
H5 C1 H6 107.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability