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

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-2812.025497
Energy at 298.15K 
HF Energy-2811.688078
Nuclear repulsion energy164.944424
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 QCISD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3032 2909 25.33      
2 A1 1170 1122 4.16      
3 A1 604 580 73.43      
4 A1 304 291 12.80      
5 E 3121 2994 17.06      
5 E 3121 2994 17.06      
6 E 1451 1392 0.10      
6 E 1451 1392 0.10      
7 E 578 555 83.30      
7 E 578 555 83.30      
8 E 104 100 27.80      
8 E 104 100 27.80      

Unscaled Zero Point Vibrational Energy (zpe) 7808.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 7491.5 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 QCISD/cc-pVDZ
ABC
5.25421 0.05385 0.05385

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.212
Mg2 0.000 0.000 -1.118
Br3 0.000 0.000 1.244
H4 0.000 1.030 -3.620
H5 0.892 -0.515 -3.620
H6 -0.892 -0.515 -3.620

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09414.45581.10801.10801.1080
Mg22.09412.36172.70592.70592.7059
Br34.45582.36174.97184.97184.9718
H41.10802.70594.97181.78421.7842
H51.10802.70594.97181.78421.7842
H61.10802.70594.97181.78421.7842

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 111.612
Mg2 C1 H5 111.612 Mg2 C1 H6 111.612
H4 C1 H5 107.249 H4 C1 H6 107.249
H5 C1 H6 107.249
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability