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

using model chemistry: CCSD(T)=FULL/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(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-2812.357305
Energy at 298.15K 
HF Energy-2811.785352
Nuclear repulsion energy167.498734
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-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 3038 2910        
2 A1 1171 1122        
3 A1 636 609        
4 A1 315 302        
5 E 3098 2968        
5 E 3098 2968        
6 E 1465 1404        
6 E 1465 1403        
7 E 562 538        
7 E 562 538        
8 E 116 112        
8 E 116 111        

Unscaled Zero Point Vibrational Energy (zpe) 7820.2 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 7491.7 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 CCSD(T)=FULL/cc-pVTZ
ABC
5.42498 0.05553 0.05553

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.163
Mg2 0.000 0.000 -1.101
Br3 0.000 0.000 1.225
H4 0.000 1.014 -3.563
H5 0.878 -0.507 -3.563
H6 -0.878 -0.507 -3.563

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06214.38821.09001.09001.0900
Mg22.06212.32602.66312.66312.6631
Br34.38822.32604.89474.89474.8947
H41.09002.66314.89471.75591.7559
H51.09002.66314.89471.75591.7559
H61.09002.66314.89471.75591.7559

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 111.552
Mg2 C1 H5 111.552 Mg2 C1 H6 111.552
H4 C1 H5 107.312 H4 C1 H6 107.312
H5 C1 H6 107.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability