return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/aug-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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-2812.048712
Energy at 298.15K 
HF Energy-2811.693372
Nuclear repulsion energy164.127371
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 CCD/aug-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 3021 2914 27.60      
2 A1 1159 1118 1.86      
3 A1 600 579 82.69      
4 A1 296 285 14.17      
5 E 3109 2999 17.27      
5 E 3109 2999 17.27      
6 E 1438 1387 0.25      
6 E 1438 1387 0.25      
7 E 566 546 73.29      
7 E 566 546 73.29      
8 E 106 102 30.21      
8 E 106 102 30.21      

Unscaled Zero Point Vibrational Energy (zpe) 7756.3 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 7481.0 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 CCD/aug-cc-pVDZ
ABC
5.26793 0.05331 0.05331

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.226
Mg2 0.000 0.000 -1.126
Br3 0.000 0.000 1.251
H4 0.000 1.029 -3.633
H5 0.891 -0.514 -3.633
H6 -0.891 -0.514 -3.633

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.10004.47711.10621.10621.1062
Mg22.10002.37712.70942.70942.7094
Br34.47712.37714.99094.99094.9909
H41.10622.70944.99091.78191.7819
H51.10622.70944.99091.78191.7819
H61.10622.70944.99091.78191.7819

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 111.563
Mg2 C1 H5 111.563 Mg2 C1 H6 111.563
H4 C1 H5 107.300 H4 C1 H6 107.300
H5 C1 H6 107.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability