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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-2812.047245
Energy at 298.15K 
HF Energy-2811.688064
Nuclear repulsion energy165.035631
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(T)=FULL/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 3024 2913        
2 A1 1159 1117        
3 A1 605 583        
4 A1 305 294        
5 E 3115 3001        
5 E 3115 3001        
6 E 1443 1390        
6 E 1443 1390        
7 E 576 555        
7 E 576 555        
8 E 104 100        
8 E 104 100        

Unscaled Zero Point Vibrational Energy (zpe) 7785.5 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 7499.0 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(T)=FULL/cc-pVDZ
ABC
5.25120 0.05390 0.05390

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.211
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.243
H4 0.000 1.030 -3.619
H5 0.892 -0.515 -3.619
H6 -0.892 -0.515 -3.619

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09544.45471.10821.10821.1082
Mg22.09542.35922.70712.70712.7071
Br34.45472.35924.97054.97054.9705
H41.10822.70714.97051.78471.7847
H51.10822.70714.97051.78471.7847
H61.10822.70714.97051.78471.7847

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 111.594
Mg2 C1 H5 111.594 Mg2 C1 H6 111.594
H4 C1 H5 107.267 H4 C1 H6 107.267
H5 C1 H6 107.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability