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

using model chemistry: MP4=FULL/cc-pVDZ

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=FULL/cc-pVDZ
 hartrees
Energy at 0K-2812.046398
Energy at 298.15K 
HF Energy-2811.688088
Nuclear repulsion energy165.075168
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=FULL/cc-pVDZ
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 3032 2926        
2 A1 1160 1120        
3 A1 607 586        
4 A1 306 295        
5 E 3127 3017        
5 E 3126 3017        
6 E 1445 1395        
6 E 1445 1395        
7 E 577 557        
7 E 577 556        
8 E 104 101        
8 E 104 101        

Unscaled Zero Point Vibrational Energy (zpe) 7804.7 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 7532.3 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 MP4=FULL/cc-pVDZ
ABC
5.25637 0.05393 0.05393

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.210
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.243
H4 0.000 1.030 -3.618
H5 0.892 -0.515 -3.618
H6 -0.892 -0.515 -3.618

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09444.45331.10771.10771.1077
Mg22.09442.35892.70592.70592.7059
Br34.45332.35894.96914.96914.9691
H41.10772.70594.96911.78391.7839
H51.10772.70594.96911.78391.7839
H61.10772.70594.96911.78391.7839

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 107.257 H4 C1 H6 107.257
H5 C1 H6 107.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability