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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-2812.273814
Energy at 298.15K 
HF Energy-2811.785565
Nuclear repulsion energy165.853207
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)/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3015 2939        
2 A1 1163 1134        
3 A1 611 596        
4 A1 305 297        
5 E 3095 3017        
5 E 3094 3016        
6 E 1456 1420        
6 E 1456 1419        
7 E 573 559        
7 E 573 558        
8 E 100 98        
8 E 100 97        

Unscaled Zero Point Vibrational Energy (zpe) 7770.1 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 7574.3 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)/cc-pVTZ
ABC
5.38694 0.05441 0.05441

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.195
Mg2 0.000 0.000 -1.113
Br3 0.000 0.000 1.238
H4 0.000 1.017 -3.598
H5 0.881 -0.509 -3.598
H6 -0.881 -0.509 -3.598

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08204.43291.09421.09421.0942
Mg22.08202.35092.68512.68512.6851
Br34.43292.35094.94164.94164.9416
H41.09422.68514.94161.76211.7621
H51.09422.68514.94161.76211.7621
H61.09422.68514.94161.76211.7621

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 111.604
Mg2 C1 H5 111.604 Mg2 C1 H6 111.604
H4 C1 H5 107.256 H4 C1 H6 107.256
H5 C1 H6 107.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability