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

using model chemistry: QCISD/aug-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 QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-2812.268649
Energy at 298.15K 
HF Energy-2811.786323
Nuclear repulsion energy165.793347
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 QCISD/aug-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 3025 2911 24.58      
2 A1 1176 1132 0.48      
3 A1 609 586 82.77      
4 A1 303 291 14.01      
5 E 3103 2986 16.44      
5 E 3103 2986 16.44      
6 E 1473 1417 0.19      
6 E 1473 1417 0.19      
7 E 578 556 72.85      
7 E 578 556 72.85      
8 E 104 100 30.48      
8 E 104 100 30.48      

Unscaled Zero Point Vibrational Energy (zpe) 7813.1 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 7519.3 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 QCISD/aug-cc-pVTZ
ABC
5.38681 0.05436 0.05436

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.197
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.238
H4 0.000 1.017 -3.598
H5 0.881 -0.509 -3.598
H6 -0.881 -0.509 -3.598

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08334.43521.09351.09351.0935
Mg22.08332.35192.68452.68452.6845
Br34.43522.35194.94204.94204.9420
H41.09352.68454.94201.76211.7621
H51.09352.68454.94201.76211.7621
H61.09352.68454.94201.76211.7621

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 111.509
Mg2 C1 H5 111.509 Mg2 C1 H6 111.509
H4 C1 H5 107.359 H4 C1 H6 107.359
H5 C1 H6 107.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability