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

using model chemistry: MP2=FULL/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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-2812.534352
Energy at 298.15K 
HF Energy-2811.681071
Nuclear repulsion energy165.867398
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/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 3068 2910 14.79 142.78 0.00 0.00
2 A1 1185 1124 0.44 74.86 0.11 0.20
3 A1 617 586 82.68 10.95 0.09 0.16
4 A1 309 293 14.30 17.59 0.19 0.32
5 E 3162 2999 12.04 119.93 0.75 0.86
5 E 3162 2999 12.04 119.93 0.75 0.86
6 E 1465 1390 0.00 2.31 0.75 0.86
6 E 1465 1390 0.00 2.31 0.75 0.86
7 E 598 567 81.86 4.65 0.75 0.86
7 E 598 567 81.86 4.65 0.75 0.86
8 E 111 105 29.61 0.46 0.75 0.86
8 E 111 105 29.61 0.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7925.0 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 7517.6 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/6-311G**
ABC
5.36584 0.05443 0.05443

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.195
Mg2 0.000 0.000 -1.113
Br3 0.000 0.000 1.238
H4 0.000 1.019 -3.595
H5 0.883 -0.510 -3.595
H6 -0.883 -0.510 -3.595

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08234.43291.09501.09501.0950
Mg22.08232.35062.68322.68322.6832
Br34.43292.35064.93904.93904.9390
H41.09502.68324.93901.76561.7656
H51.09502.68324.93901.76561.7656
H61.09502.68324.93901.76561.7656

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 111.415
Mg2 C1 H5 111.415 Mg2 C1 H6 111.415
H4 C1 H5 107.459 H4 C1 H6 107.459
H5 C1 H6 107.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability