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

using model chemistry: MP4/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP4/6-311+G(3df,2p)
 hartrees
Energy at 0K-2812.116868
Energy at 298.15K 
HF Energy-2811.691082
Nuclear repulsion energy165.407779
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 MP4/6-311+G(3df,2p)
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 3013 2844        
2 A1 1166 1100        
3 A1 604 570        
4 A1 300 283        
5 E 3096 2922        
5 E 3096 2922        
6 E 1462 1380        
6 E 1462 1380        
7 E 574 541        
7 E 573 541        
8 E 101 96        
8 E 101 95        

Unscaled Zero Point Vibrational Energy (zpe) 7774.0 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 7337.1 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 MP4/6-311+G(3df,2p)
ABC
5.37704 0.05413 0.05413

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.202
Mg2 0.000 0.000 -1.118
Br3 0.000 0.000 1.241
H4 0.000 1.018 -3.605
H5 0.882 -0.509 -3.605
H6 -0.882 -0.509 -3.605

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08354.44301.09511.09511.0951
Mg22.08352.35942.68682.68682.6868
Br34.44302.35944.95164.95164.9516
H41.09512.68684.95161.76371.7637
H51.09512.68684.95161.76371.7637
H61.09512.68684.95161.76371.7637

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 111.580
Mg2 C1 H5 111.580 Mg2 C1 H6 111.580
H4 C1 H5 107.282 H4 C1 H6 107.282
H5 C1 H6 107.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability