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

using model chemistry: CCSD(T)/daug-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)/daug-cc-pVTZ
 hartrees
Energy at 0K-2812.288633
Energy at 298.15K 
HF Energy-2811.786400
Nuclear repulsion energy165.671949
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)/daug-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 3009 3009        
2 A1 1160 1160        
3 A1 606 606        
4 A1 301 301        
5 E 3089 3089        
5 E 3089 3089        
6 E 1458 1458        
6 E 1458 1458        
7 E 572 572        
7 E 571 571        
8 E 105 105        
8 E 104 104        

Unscaled Zero Point Vibrational Energy (zpe) 7760.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7760.9 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)/daug-cc-pVTZ
ABC
5.37199 0.05428 0.05428

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.200
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.239
H4 0.000 1.019 -3.601
H5 0.882 -0.509 -3.601
H6 -0.882 -0.509 -3.601

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08544.43861.09511.09511.0951
Mg22.08542.35332.68762.68762.6876
Br34.43862.35334.94634.94634.9463
H41.09512.68764.94631.76461.7646
H51.09512.68764.94631.76461.7646
H61.09512.68764.94631.76461.7646

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 111.515
Mg2 C1 H5 111.515 Mg2 C1 H6 111.515
H4 C1 H5 107.353 H4 C1 H6 107.353
H5 C1 H6 107.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability