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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31+G**
 hartrees
Energy at 0K-2809.535928
Energy at 298.15K 
HF Energy-2809.201147
Nuclear repulsion energy165.824733
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 MP2=FULL/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 2921 22.52 150.62 0.00 0.00
2 A1 1201 1128 0.22 129.60 0.15 0.25
3 A1 617 580 79.30 11.97 0.15 0.26
4 A1 305 287 15.59 20.79 0.17 0.29
5 E 3216 3020 10.52 112.96 0.75 0.86
5 E 3216 3020 10.52 112.96 0.75 0.86
6 E 1495 1404 0.12 1.30 0.75 0.86
6 E 1495 1404 0.12 1.30 0.75 0.86
7 E 614 577 80.52 5.83 0.75 0.86
7 E 614 577 80.52 5.83 0.75 0.86
8 E 162 152 27.71 1.11 0.75 0.86
8 E 162 152 27.71 1.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8103.9 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 7611.2 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 MP2=FULL/6-31+G**
ABC
5.38574 0.05439 0.05439

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.197
Mg2 0.000 0.000 -1.115
Br3 0.000 0.000 1.238
H4 0.000 1.017 -3.588
H5 0.881 -0.509 -3.588
H6 -0.881 -0.509 -3.588

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08154.43501.09021.09021.0902
Mg22.08152.35352.67412.67412.6741
Br34.43502.35354.93254.93254.9325
H41.09022.67414.93251.76231.7623
H51.09022.67414.93251.76231.7623
H61.09022.67414.93251.76231.7623

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 111.042
Mg2 C1 H5 111.042 Mg2 C1 H6 111.042
H4 C1 H5 107.856 H4 C1 H6 107.856
H5 C1 H6 107.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability