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

using model chemistry: MP2=FULL/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-2812.484928
Energy at 298.15K 
HF Energy-2811.791339
Nuclear repulsion energy168.427159
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 MP2=FULL/aug-cc-pVQZ
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 3073 2939 11.91 196.81 0.00 0.00
2 A1 1108 1059 1.37 84.15 0.20 0.34
3 A1 653 625 88.30 7.21 0.16 0.27
4 A1 311 297 14.54 18.84 0.11 0.20
5 E 3166 3028 8.55 93.47 0.75 0.86
5 E 3166 3028 8.55 93.47 0.75 0.86
6 E 1452 1389 0.02 0.22 0.75 0.86
6 E 1452 1389 0.02 0.22 0.75 0.86
7 E 467 447 76.64 7.72 0.75 0.86
7 E 467 447 76.64 7.72 0.75 0.86
8 E 102 97 26.71 1.40 0.75 0.86
8 E 102 97 26.71 1.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7759.4 cm-1
Scaled (by 0.9564) Zero Point Vibrational Energy (zpe) 7421.1 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 MP2=FULL/aug-cc-pVQZ
ABC
5.48153 0.05636 0.05636

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.126
Mg2 0.000 0.000 -1.107
Br3 0.000 0.000 1.218
H4 0.000 1.009 -3.530
H5 0.873 -0.504 -3.530
H6 -0.873 -0.504 -3.530

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.01944.34441.08621.08621.0862
Mg22.01942.32492.62432.62432.6243
Br34.34442.32494.85374.85374.8537
H41.08622.62434.85371.74681.7468
H51.08622.62434.85371.74681.7468
H61.08622.62434.85371.74681.7468

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 111.800
Mg2 C1 H5 111.800 Mg2 C1 H6 111.800
H4 C1 H5 107.046 H4 C1 H6 107.046
H5 C1 H6 107.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability