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

using model chemistry: MP3/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/cc-pVDZ
 hartrees
Energy at 0K-2812.022353
Energy at 298.15K 
HF Energy-2811.688168
Nuclear repulsion energy165.136243
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 MP3/cc-pVDZ
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 3063 2904 22.77      
2 A1 1171 1110 2.59      
3 A1 610 578 76.54      
4 A1 306 290 13.17      
5 E 3154 2990 14.16      
5 E 3154 2990 14.16      
6 E 1454 1378 0.04      
6 E 1454 1378 0.04      
7 E 580 550 84.75      
7 E 580 550 84.75      
8 E 105 100 28.63      
8 E 105 100 28.63      

Unscaled Zero Point Vibrational Energy (zpe) 7867.0 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 7457.2 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 MP3/cc-pVDZ
ABC
5.27436 0.05399 0.05399

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.207
Mg2 0.000 0.000 -1.117
Br3 0.000 0.000 1.243
H4 0.000 1.028 -3.614
H5 0.890 -0.514 -3.614
H6 -0.890 -0.514 -3.614

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08974.44961.10591.10591.1059
Mg22.08972.35992.70052.70052.7005
Br34.44962.35994.96464.96464.9646
H41.10592.70054.96461.78081.7808
H51.10592.70054.96461.78081.7808
H61.10592.70054.96461.78081.7808

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 111.615
Mg2 C1 H5 111.615 Mg2 C1 H6 111.615
H4 C1 H5 107.245 H4 C1 H6 107.245
H5 C1 H6 107.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability