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

using model chemistry: CCSD(T)/6-311G**

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)/6-311G**
 hartrees
Energy at 0K-2812.031780
Energy at 298.15K 
HF Energy-2811.680965
Nuclear repulsion energy165.335481
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)/6-311G**
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 3015 2909        
2 A1 1184 1142        
3 A1 608 586        
4 A1 305 294        
5 E 3097 2987        
5 E 3096 2987        
6 E 1459 1407        
6 E 1458 1407        
7 E 591 570        
7 E 591 570        
8 E 108 104        
8 E 108 104        

Unscaled Zero Point Vibrational Energy (zpe) 7809.3 cm-1
Scaled (by 0.9647) Zero Point Vibrational Energy (zpe) 7533.7 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)/6-311G**
ABC
5.32811 0.05408 0.05408

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.205
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.241
H4 0.000 1.023 -3.608
H5 0.886 -0.511 -3.608
H6 -0.886 -0.511 -3.608

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08904.44691.09931.09931.0993
Mg22.08902.35782.69352.69352.6935
Br34.44692.35784.95624.95624.9562
H41.09932.69354.95621.77181.7718
H51.09932.69354.95621.77181.7718
H61.09932.69354.95621.77181.7718

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 111.483
Mg2 C1 H5 111.483 Mg2 C1 H6 111.483
H4 C1 H5 107.387 H4 C1 H6 107.387
H5 C1 H6 107.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability