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

using model chemistry: CCD/6-31G

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/6-31G
 hartrees
Energy at 0K-2809.203941
Energy at 298.15K 
HF Energy-2809.040067
Nuclear repulsion energy162.897585
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/6-31G
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 3004 2882 31.60      
2 A1 1277 1225 1.79      
3 A1 604 579 38.91      
4 A1 295 283 12.52      
5 E 3091 2966 21.08      
5 E 3091 2966 21.08      
6 E 1510 1449 0.20      
6 E 1510 1449 0.20      
7 E 662 635 108.72      
7 E 662 635 108.72      
8 E 130 125 28.77      
8 E 130 125 28.77      

Unscaled Zero Point Vibrational Energy (zpe) 7983.3 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 7660.0 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/6-31G
ABC
5.25045 0.05258 0.05258

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.244
Mg2 0.000 0.000 -1.145
Br3 0.000 0.000 1.261
H4 0.000 1.030 -3.641
H5 0.892 -0.515 -3.641
H6 -0.892 -0.515 -3.641

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09904.50411.10441.10441.1044
Mg22.09902.40512.70052.70052.7005
Br34.50412.40515.00845.00845.0084
H41.10442.70055.00841.78491.7849
H51.10442.70055.00841.78491.7849
H61.10442.70055.00841.78491.7849

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 111.074
Mg2 C1 H5 111.074 Mg2 C1 H6 111.074
H4 C1 H5 107.822 H4 C1 H6 107.822
H5 C1 H6 107.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability