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

using model chemistry: MP2=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-2812.274791
Energy at 298.15K 
HF Energy-2811.717278
Nuclear repulsion energy164.716604
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/TZVP
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 3083 2937 21.32 165.03 0.00 0.00
2 A1 1226 1168 0.00 75.60 0.31 0.47
3 A1 598 570 77.17 14.59 0.19 0.33
4 A1 294 280 17.05 18.45 0.28 0.44
5 E 3177 3027 13.73 115.37 0.75 0.86
5 E 3177 3027 13.73 115.38 0.75 0.86
6 E 1442 1374 0.99 11.63 0.75 0.86
6 E 1442 1374 0.99 11.63 0.75 0.86
7 E 610 581 81.81 0.30 0.75 0.86
7 E 610 581 81.81 0.30 0.75 0.86
8 E 105 100 38.43 0.42 0.75 0.86
8 E 105 100 38.43 0.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7934.0 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 7558.7 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/TZVP
ABC
5.44539 0.05369 0.05369

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.211
Mg2 0.000 0.000 -1.128
Br3 0.000 0.000 1.247
H4 0.000 1.012 -3.616
H5 0.876 -0.506 -3.616
H6 -0.876 -0.506 -3.616

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08304.45811.09001.09001.0900
Mg22.08302.37512.68622.68622.6862
Br34.45812.37514.96764.96764.9676
H41.09002.68624.96761.75261.7526
H51.09002.68624.96761.75261.7526
H61.09002.68624.96761.75261.7526

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 111.829
Mg2 C1 H5 111.829 Mg2 C1 H6 111.829
H4 C1 H5 107.014 H4 C1 H6 107.014
H5 C1 H6 107.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability