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

using model chemistry: CCSD=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-2812.289834
Energy at 298.15K 
HF Energy-2811.717250
Nuclear repulsion energy164.486578
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/TZVP
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 3056 2895 33.41      
2 A1 1235 1170 0.88      
3 A1 592 561 70.41      
4 A1 293 277 17.03      
5 E 3138 2973 20.23      
5 E 3138 2973 20.23      
6 E 1447 1371 0.61      
6 E 1447 1371 0.61      
7 E 611 579 80.63      
7 E 611 579 80.63      
8 E 105 99 38.19      
8 E 105 99 38.19      

Unscaled Zero Point Vibrational Energy (zpe) 7887.9 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 7473.8 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/TZVP
ABC
5.42935 0.05353 0.05353

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.216
Mg2 0.000 0.000 -1.129
Br3 0.000 0.000 1.249
H4 0.000 1.013 -3.623
H5 0.878 -0.507 -3.623
H6 -0.878 -0.507 -3.623

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08734.46501.09191.09191.0919
Mg22.08732.37772.69202.69202.6920
Br34.46502.37774.97604.97604.9760
H41.09192.69204.97601.75521.7552
H51.09192.69204.97601.75521.7552
H61.09192.69204.97601.75521.7552

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 111.866
Mg2 C1 H5 111.866 Mg2 C1 H6 111.866
H4 C1 H5 106.974 H4 C1 H6 106.974
H5 C1 H6 106.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability