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

using model chemistry: MP4=FULL/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 MP4=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-2812.383951
Energy at 298.15K 
HF Energy-2811.786112
Nuclear repulsion energy167.291592
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 MP4=FULL/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 3039 2946        
2 A1 1154 1118        
3 A1 628 608        
4 A1 311 302        
5 E 3097 3002        
5 E 3097 3002        
6 E 1464 1420        
6 E 1464 1419        
7 E 560 543        
7 E 559 542        
8 E 117 114        
8 E 116 113        

Unscaled Zero Point Vibrational Energy (zpe) 7803.3 cm-1
Scaled (by 0.9693) Zero Point Vibrational Energy (zpe) 7563.7 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 MP4=FULL/aug-cc-pVTZ
ABC
5.40201 0.05539 0.05539

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.168
Mg2 0.000 0.000 -1.102
Br3 0.000 0.000 1.227
H4 0.000 1.016 -3.567
H5 0.880 -0.508 -3.567
H6 -0.880 -0.508 -3.567

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06584.39431.09181.09181.0918
Mg22.06582.32852.66662.66662.6666
Br34.39432.32854.90054.90054.9005
H41.09182.66664.90051.75971.7597
H51.09182.66664.90051.75971.7597
H61.09182.66664.90051.75971.7597

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 111.480
Mg2 C1 H5 111.480 Mg2 C1 H6 111.480
H4 C1 H5 107.390 H4 C1 H6 107.390
H5 C1 H6 107.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability