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

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-2809.520440
Energy at 298.15K 
HF Energy-2809.201148
Nuclear repulsion energy165.469008
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 MP3/6-31+G**
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 3110 2894 32.55      
2 A1 1214 1130 0.85      
3 A1 614 572 76.69      
4 A1 303 282 16.29      
5 E 3204 2981 14.59      
5 E 3204 2981 14.59      
6 E 1501 1396 0.09      
6 E 1501 1396 0.09      
7 E 613 571 80.89      
7 E 613 571 80.89      
8 E 159 148 28.47      
8 E 159 148 28.47      

Unscaled Zero Point Vibrational Energy (zpe) 8097.2 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 7534.4 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 MP3/6-31+G**
ABC
5.38913 0.05416 0.05416

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

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 -1.119
Br3 0.000 0.000 1.241
H4 0.000 1.017 -3.597
H5 0.881 -0.509 -3.597
H6 -0.881 -0.509 -3.597

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08354.44321.09091.09091.0909
Mg22.08352.35972.67862.67862.6786
Br34.44322.35974.94344.94344.9434
H41.09092.67864.94341.76181.7618
H51.09092.67864.94341.76181.7618
H61.09092.67864.94341.76181.7618

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 111.194
Mg2 C1 H5 111.194 Mg2 C1 H6 111.194
H4 C1 H5 107.695 H4 C1 H6 107.695
H5 C1 H6 107.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability