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

using model chemistry: CCSD/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 CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-2812.268033
Energy at 298.15K 
HF Energy-2811.786328
Nuclear repulsion energy165.816930
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/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 3028 2894 24.29      
2 A1 1176 1125 0.39      
3 A1 610 583 83.21      
4 A1 303 290 14.11      
5 E 3106 2969 16.02      
5 E 3106 2969 16.02      
6 E 1473 1408 0.17      
6 E 1473 1408 0.17      
7 E 578 553 73.27      
7 E 578 553 73.27      
8 E 104 99 30.60      
8 E 104 99 30.60      

Unscaled Zero Point Vibrational Energy (zpe) 7819.8 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 7474.2 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 CCSD/aug-cc-pVTZ
ABC
5.38898 0.05438 0.05438

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.196
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.238
H4 0.000 1.017 -3.597
H5 0.881 -0.509 -3.597
H6 -0.881 -0.509 -3.597

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08294.43461.09331.09331.0933
Mg22.08292.35172.68402.68402.6840
Br34.43462.35174.94134.94134.9413
H41.09332.68404.94131.76181.7618
H51.09332.68404.94131.76181.7618
H61.09332.68404.94131.76181.7618

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 111.510
Mg2 C1 H5 111.510 Mg2 C1 H6 111.510
H4 C1 H5 107.358 H4 C1 H6 107.358
H5 C1 H6 107.358
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability