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

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-2812.676773
Energy at 298.15K 
HF Energy-2811.691118
Nuclear repulsion energy166.667579
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/6-311+G(3df,2p)
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 3074 2898 14.61 180.61 0.00 0.00
2 A1 1164 1097 0.00 104.04 0.19 0.32
3 A1 617 581 86.80 11.87 0.15 0.26
4 A1 306 289 14.12 21.28 0.14 0.24
5 E 3167 2985 8.71 98.45 0.75 0.86
5 E 3167 2985 8.71 98.45 0.75 0.86
6 E 1470 1386 0.03 0.24 0.75 0.86
6 E 1470 1386 0.03 0.24 0.75 0.86
7 E 580 547 73.33 8.13 0.75 0.86
7 E 580 547 73.33 8.13 0.75 0.86
8 E 102 96 29.26 1.35 0.75 0.86
8 E 102 96 29.26 1.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7899.1 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 7446.5 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/6-311+G(3df,2p)
ABC
5.41818 0.05498 0.05498

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.178
Mg2 0.000 0.000 -1.109
Br3 0.000 0.000 1.232
H4 0.000 1.014 -3.575
H5 0.879 -0.507 -3.575
H6 -0.879 -0.507 -3.575

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06854.40951.08931.08931.0893
Mg22.06852.34102.66592.66592.6659
Br34.40952.34104.91224.91224.9122
H41.08932.66594.91221.75701.7570
H51.08932.66594.91221.75701.7570
H61.08932.66594.91221.75701.7570

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 111.364
Mg2 C1 H5 111.364 Mg2 C1 H6 111.364
H4 C1 H5 107.514 H4 C1 H6 107.514
H5 C1 H6 107.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability