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

using model chemistry: MP2/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-2812.242896
Energy at 298.15K 
HF Energy-2811.786368
Nuclear repulsion energy165.806944
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/aug-cc-pVTZ
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 3054 2910 14.18 201.75 0.00 0.00
2 A1 1155 1101 0.04 98.12 0.20 0.33
3 A1 611 582 87.29 11.18 0.16 0.28
4 A1 303 289 13.81 21.67 0.12 0.22
5 E 3147 2999 10.13 98.76 0.75 0.86
5 E 3147 2999 10.13 98.76 0.75 0.86
6 E 1465 1396 0.15 0.24 0.75 0.86
6 E 1465 1396 0.15 0.24 0.75 0.86
7 E 577 550 72.06 7.95 0.75 0.86
7 E 577 550 72.06 7.95 0.75 0.86
8 E 103 98 30.27 1.41 0.75 0.86
8 E 103 98 30.27 1.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7852.8 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 7482.9 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/aug-cc-pVTZ
ABC
5.39780 0.05437 0.05437

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

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 -1.114
Br3 0.000 0.000 1.238
H4 0.000 1.016 -3.595
H5 0.880 -0.508 -3.595
H6 -0.880 -0.508 -3.595

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08274.43531.09151.09151.0915
Mg22.08272.35252.68092.68092.6809
Br34.43532.35254.93904.93904.9390
H41.09152.68094.93901.76031.7603
H51.09152.68094.93901.76031.7603
H61.09152.68094.93901.76031.7603

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 111.388
Mg2 C1 H5 111.388 Mg2 C1 H6 111.388
H4 C1 H5 107.489 H4 C1 H6 107.489
H5 C1 H6 107.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability