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

using model chemistry: CCSD/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 CCSD/6-31G**
 hartrees
Energy at 0K-2809.508883
Energy at 298.15K 
HF Energy-2809.189122
Nuclear repulsion energy165.833271
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/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 3092 2883 20.60      
2 A1 1229 1146 8.02      
3 A1 611 570 66.04      
4 A1 308 287 13.29      
5 E 3180 2966 18.04      
5 E 3180 2966 18.04      
6 E 1518 1415 0.38      
6 E 1518 1415 0.38      
7 E 614 572 88.53      
7 E 614 572 88.53      
8 E 127 119 26.72      
8 E 127 119 26.72      

Unscaled Zero Point Vibrational Energy (zpe) 8058.2 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 7515.1 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/6-31G**
ABC
5.39788 0.05434 0.05434

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.200
Mg2 0.000 0.000 -1.111
Br3 0.000 0.000 1.238
H4 0.000 1.016 -3.600
H5 0.880 -0.508 -3.600
H6 -0.880 -0.508 -3.600

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08964.43861.09211.09211.0921
Mg22.08962.34902.68892.68892.6889
Br34.43862.34904.94404.94404.9440
H41.09212.68894.94401.76031.7603
H51.09212.68894.94401.76031.7603
H61.09212.68894.94401.76031.7603

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 111.474
Mg2 C1 H5 111.474 Mg2 C1 H6 111.474
H4 C1 H5 107.396 H4 C1 H6 107.396
H5 C1 H6 107.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability