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

using model chemistry: CID/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CID/cc-pVTZ
 hartrees
Energy at 0K-2812.201791
Energy at 298.15K 
HF Energy-2811.785638
Nuclear repulsion energy166.329150
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 CID/cc-pVTZ
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 3101 2873 21.60      
2 A1 1210 1121 0.02      
3 A1 623 577 88.42      
4 A1 309 287 14.51      
5 E 3182 2948 15.59      
5 E 3182 2948 15.59      
6 E 1504 1393 0.03      
6 E 1504 1393 0.03      
7 E 586 543 77.71      
7 E 586 543 77.71      
8 E 104 96 32.97      
8 E 104 96 32.97      

Unscaled Zero Point Vibrational Energy (zpe) 7996.8 cm-1
Scaled (by 0.9265) Zero Point Vibrational Energy (zpe) 7409.1 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 CID/cc-pVTZ
ABC
5.46100 0.05470 0.05470

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.187
Mg2 0.000 0.000 -1.111
Br3 0.000 0.000 1.235
H4 0.000 1.010 -3.587
H5 0.875 -0.505 -3.587
H6 -0.875 -0.505 -3.587

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07584.42111.08681.08681.0868
Mg22.07582.34532.67432.67432.6743
Br34.42112.34534.92614.92614.9261
H41.08682.67434.92611.75011.7501
H51.08682.67434.92611.75011.7501
H61.08682.67434.92611.75011.7501

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 111.609
Mg2 C1 H5 111.609 Mg2 C1 H6 111.609
H4 C1 H5 107.251 H4 C1 H6 107.251
H5 C1 H6 107.251
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability