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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-2812.315140
Energy at 298.15K 
HF Energy-2811.785367
Nuclear repulsion energy167.549859
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3082 2926 11.75 154.92 0.00 0.00
2 A1 1165 1106 0.00 75.99 0.16 0.27
3 A1 637 604 84.71 9.47 0.10 0.18
4 A1 316 300 13.07 16.89 0.17 0.29
5 E 3158 2998 9.33 104.46 0.75 0.86
5 E 3158 2998 9.33 104.46 0.75 0.86
6 E 1470 1396 0.05 0.85 0.75 0.86
6 E 1470 1396 0.05 0.85 0.75 0.86
7 E 568 539 75.24 5.78 0.75 0.86
7 E 568 539 75.24 5.78 0.75 0.86
8 E 116 110 29.12 0.74 0.75 0.86
8 E 116 110 29.12 0.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7911.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 7511.5 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/cc-pVTZ
ABC
5.44935 0.05554 0.05554

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.163
Mg2 0.000 0.000 -1.101
Br3 0.000 0.000 1.225
H4 0.000 1.012 -3.560
H5 0.876 -0.506 -3.560
H6 -0.876 -0.506 -3.560

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06214.38811.08671.08671.0867
Mg22.06212.32602.65912.65912.6591
Br34.38812.32604.89094.89094.8909
H41.08672.65914.89091.75201.7520
H51.08672.65914.89091.75201.7520
H61.08672.65914.89091.75201.7520

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 111.432
Mg2 C1 H5 111.432 Mg2 C1 H6 111.432
H4 C1 H5 107.441 H4 C1 H6 107.441
H5 C1 H6 107.441
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability