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

using model chemistry: CCSD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-2812.025129
Energy at 298.15K 
HF Energy-2811.688086
Nuclear repulsion energy164.970566
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/cc-pVDZ
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 3035 2875 24.93      
2 A1 1171 1109 3.97      
3 A1 605 573 73.88      
4 A1 304 288 12.96      
5 E 3123 2958 16.69      
5 E 3123 2958 16.69      
6 E 1451 1375 0.09      
6 E 1451 1375 0.09      
7 E 579 548 83.73      
7 E 579 548 83.73      
8 E 104 99 28.00      
8 E 104 99 28.00      

Unscaled Zero Point Vibrational Energy (zpe) 7814.4 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 7402.6 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 CCSD/cc-pVDZ
ABC
5.25614 0.05387 0.05387

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.211
Mg2 0.000 0.000 -1.118
Br3 0.000 0.000 1.244
H4 0.000 1.030 -3.619
H5 0.892 -0.515 -3.619
H6 -0.892 -0.515 -3.619

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09364.45501.10791.10791.1079
Mg22.09362.36142.70552.70552.7055
Br34.45502.36144.97104.97104.9710
H41.10792.70554.97101.78391.7839
H51.10792.70554.97101.78391.7839
H61.10792.70554.97101.78391.7839

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 111.618
Mg2 C1 H5 111.618 Mg2 C1 H6 111.618
H4 C1 H5 107.242 H4 C1 H6 107.242
H5 C1 H6 107.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability