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

using model chemistry: CCSD=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-2809.854128
Energy at 298.15K 
HF Energy-2809.364572
Nuclear repulsion energy167.795565
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 CCSD=FULL/6-31G(2df,p)
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 3073 2894 11.67      
2 A1 1216 1145 1.43      
3 A1 634 597 72.93      
4 A1 315 297 11.06      
5 E 3154 2970 12.56      
5 E 3154 2970 12.56      
6 E 1497 1410 0.39      
6 E 1497 1410 0.39      
7 E 583 549 91.65      
7 E 583 549 91.65      
8 E 138 130 24.59      
8 E 138 130 24.59      

Unscaled Zero Point Vibrational Energy (zpe) 7991.6 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 7524.9 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 CCSD=FULL/6-31G(2df,p)
ABC
5.43476 0.05570 0.05570

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.159
Mg2 0.000 0.000 -1.095
Br3 0.000 0.000 1.223
H4 0.000 1.013 -3.569
H5 0.877 -0.506 -3.569
H6 -0.877 -0.506 -3.569

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06404.38191.09281.09281.0928
Mg22.06402.31792.67362.67362.6736
Br34.38192.31794.89814.89814.8981
H41.09282.67364.89811.75431.7543
H51.09282.67364.89811.75431.7543
H61.09282.67364.89811.75431.7543

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 112.054
Mg2 C1 H5 112.054 Mg2 C1 H6 112.054
H4 C1 H5 106.769 H4 C1 H6 106.769
H5 C1 H6 106.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability