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

using model chemistry: CCD/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 CCD/6-31+G**
 hartrees
Energy at 0K-2809.521406
Energy at 298.15K 
HF Energy-2809.201136
Nuclear repulsion energy165.391151
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 CCD/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 3089 2911 34.11      
2 A1 1216 1146 1.22      
3 A1 611 576 75.91      
4 A1 302 285 16.25      
5 E 3183 2999 15.58      
5 E 3183 2999 15.58      
6 E 1500 1413 0.05      
6 E 1500 1413 0.05      
7 E 613 577 81.43      
7 E 613 577 81.43      
8 E 159 149 28.51      
8 E 159 149 28.51      

Unscaled Zero Point Vibrational Energy (zpe) 8062.8 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 7597.6 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 CCD/6-31+G**
ABC
5.37882 0.05410 0.05410

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.205
Mg2 0.000 0.000 -1.118
Br3 0.000 0.000 1.241
H4 0.000 1.018 -3.601
H5 0.882 -0.509 -3.601
H6 -0.882 -0.509 -3.601

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08654.44621.09241.09241.0924
Mg22.08652.35972.68322.68322.6832
Br34.44622.35974.94814.94814.9481
H41.09242.68324.94811.76341.7634
H51.09242.68324.94811.76341.7634
H61.09242.68324.94811.76341.7634

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 111.255
Mg2 C1 H5 111.255 Mg2 C1 H6 111.255
H4 C1 H5 107.630 H4 C1 H6 107.630
H5 C1 H6 107.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability