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

using model chemistry: CISD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-2811.967057
Energy at 298.15K 
HF Energy-2811.675873
Nuclear repulsion energy165.620549
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/6-311G*
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 3069 2840 27.88      
2 A1 1249 1156 0.00      
3 A1 619 572 81.35      
4 A1 308 285 15.76      
5 E 3146 2911 18.48      
5 E 3146 2911 18.48      
6 E 1519 1405 0.35      
6 E 1519 1405 0.35      
7 E 612 566 90.37      
7 E 612 566 90.37      
8 E 111 103 31.50      
8 E 111 103 31.50      

Unscaled Zero Point Vibrational Energy (zpe) 8009.0 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 7410.7 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/6-311G*
ABC
5.41382 0.05426 0.05426

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.198
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.240
H4 0.000 1.015 -3.606
H5 0.879 -0.507 -3.606
H6 -0.879 -0.507 -3.606

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08254.43781.09371.09371.0937
Mg22.08252.35532.68912.68912.6891
Br34.43782.35534.95074.95074.9507
H41.09372.68914.95071.75771.7577
H51.09372.68914.95071.75771.7577
H61.09372.68914.95071.75771.7577

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 111.890
Mg2 C1 H5 111.890 Mg2 C1 H6 111.890
H4 C1 H5 106.947 H4 C1 H6 106.947
H5 C1 H6 106.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability