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

using model chemistry: CISD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2812.187804
Energy at 298.15K 
HF Energy-2811.732702
Nuclear repulsion energy166.143277
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/Def2TZVPP
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 3105 3105 22.22      
2 A1 1210 1210 0.18      
3 A1 620 620 89.16      
4 A1 305 305 14.86      
5 E 3184 3184 15.71      
5 E 3184 3184 15.71      
6 E 1502 1502 0.04      
6 E 1502 1502 0.04      
7 E 586 586 78.29      
7 E 586 586 78.29      
8 E 104 104 32.96      
8 E 104 104 32.96      

Unscaled Zero Point Vibrational Energy (zpe) 7996.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7996.2 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/Def2TZVPP
ABC
5.46445 0.05459 0.05459

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.189
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.236
H4 0.000 1.010 -3.588
H5 0.875 -0.505 -3.588
H6 -0.875 -0.505 -3.588

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07494.42461.08641.08641.0864
Mg22.07492.34972.67302.67302.6730
Br34.42462.34974.92914.92914.9291
H41.08642.67304.92911.74961.7496
H51.08642.67304.92911.74961.7496
H61.08642.67304.92911.74961.7496

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 111.599
Mg2 C1 H5 111.599 Mg2 C1 H6 111.599
H4 C1 H5 107.262 H4 C1 H6 107.262
H5 C1 H6 107.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability