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

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-2809.194249
Energy at 298.15K 
HF Energy-2809.040287
Nuclear repulsion energy163.134070
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 CISD/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 3032 2843 32.06      
2 A1 1288 1208 0.68      
3 A1 611 573 41.47      
4 A1 297 279 12.71      
5 E 3115 2921 22.36      
5 E 3115 2921 22.36      
6 E 1526 1431 0.28      
6 E 1526 1431 0.28      
7 E 665 623 108.40      
7 E 665 623 108.40      
8 E 131 123 30.02      
8 E 131 123 30.02      

Unscaled Zero Point Vibrational Energy (zpe) 8050.4 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 7549.7 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 CISD/6-31G
ABC
5.27905 0.05274 0.05274

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.238
Mg2 0.000 0.000 -1.144
Br3 0.000 0.000 1.259
H4 0.000 1.028 -3.634
H5 0.890 -0.514 -3.634
H6 -0.890 -0.514 -3.634

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09374.49651.10151.10151.1015
Mg22.09372.40282.69402.69402.6940
Br34.49652.40284.99984.99984.9998
H41.10152.69404.99981.78001.7800
H51.10152.69404.99981.78001.7800
H61.10152.69404.99981.78001.7800

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 111.098
Mg2 C1 H5 111.098 Mg2 C1 H6 111.098
H4 C1 H5 107.796 H4 C1 H6 107.796
H5 C1 H6 107.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability