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

using model chemistry: QCISD(T)=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-2812.519500
Energy at 298.15K 
HF Energy-2811.732623
Nuclear repulsion energy166.316494
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 QCISD(T)=FULL/Def2TZVPP
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 3018 3018        
2 A1 1161 1161        
3 A1 611 611        
4 A1 303 303        
5 E 3097 3097        
5 E 3097 3097        
6 E 1449 1449        
6 E 1449 1449        
7 E 576 576        
7 E 576 576        
8 E 104 104        
8 E 103 103        

Unscaled Zero Point Vibrational Energy (zpe) 7771.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7771.7 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 QCISD(T)=FULL/Def2TZVPP
ABC
5.40540 0.05475 0.05475

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.184
Mg2 0.000 0.000 -1.112
Br3 0.000 0.000 1.234
H4 0.000 1.016 -3.584
H5 0.880 -0.508 -3.584
H6 -0.880 -0.508 -3.584

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07154.41781.09151.09151.0915
Mg22.07152.34632.67202.67202.6720
Br34.41782.34634.92364.92364.9236
H41.09152.67204.92361.75911.7591
H51.09152.67204.92361.75911.7591
H61.09152.67204.92361.75911.7591

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 111.492
Mg2 C1 H5 111.492 Mg2 C1 H6 111.492
H4 C1 H5 107.377 H4 C1 H6 107.377
H5 C1 H6 107.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability