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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-2813.613107
Energy at 298.15K 
HF Energy-2813.498809
Nuclear repulsion energy164.828592
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 B2PLYP=FULLultrafine/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 3033 2918 23.24 195.64 0.00 0.00
2 A1 1138 1095 1.81 110.81 0.20 0.33
3 A1 595 573 81.32 12.95 0.16 0.28
4 A1 294 283 14.55 26.29 0.15 0.27
5 E 3120 3002 13.76 110.89 0.75 0.86
5 E 3120 3002 13.76 110.89 0.75 0.86
6 E 1427 1373 0.08 0.19 0.75 0.86
6 E 1427 1373 0.08 0.19 0.75 0.86
7 E 560 539 67.30 7.43 0.75 0.86
7 E 560 539 67.30 7.43 0.75 0.86
8 E 103 99 26.36 1.44 0.75 0.86
8 E 103 99 26.36 1.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7738.4 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 7446.7 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
5.30338 0.05382 0.05382

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.209
Mg2 0.000 0.000 -1.125
Br3 0.000 0.000 1.245
H4 0.000 1.025 -3.610
H5 0.888 -0.513 -3.610
H6 -0.888 -0.513 -3.610

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08414.45441.10091.10091.1009
Mg22.08412.37022.68822.68822.6882
Br34.45442.37024.96234.96234.9623
H41.10092.68824.96231.77591.7759
H51.10092.68824.96231.77591.7759
H61.10092.68824.96231.77591.7759

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 111.352
Mg2 C1 H5 111.352 Mg2 C1 H6 111.352
H4 C1 H5 107.527 H4 C1 H6 107.527
H5 C1 H6 107.527
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability