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

using model chemistry: CCSD/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 CCSD/6-311G*
 hartrees
Energy at 0K-2811.998375
Energy at 298.15K 
HF Energy-2811.675750
Nuclear repulsion energy165.403010
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/6-311G*
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 3016 2875 26.32      
2 A1 1225 1168 0.52      
3 A1 611 582 75.08      
4 A1 305 291 14.94      
5 E 3093 2950 17.59      
5 E 3093 2950 17.59      
6 E 1493 1423 0.25      
6 E 1493 1423 0.25      
7 E 607 578 88.95      
7 E 607 578 88.95      
8 E 109 104 28.77      
8 E 109 104 28.77      

Unscaled Zero Point Vibrational Energy (zpe) 7879.1 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 7512.7 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 CCSD/6-311G*
ABC
5.36345 0.05412 0.05412

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.203
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.241
H4 0.000 1.020 -3.611
H5 0.883 -0.510 -3.611
H6 -0.883 -0.510 -3.611

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08744.44431.09811.09811.0981
Mg22.08742.35692.69542.69542.6954
Br34.44432.35694.95804.95804.9580
H41.09812.69544.95801.76601.7660
H51.09812.69544.95801.76601.7660
H61.09812.69544.95801.76601.7660

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 111.795
Mg2 C1 H5 111.795 Mg2 C1 H6 111.795
H4 C1 H5 107.051 H4 C1 H6 107.051
H5 C1 H6 107.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability