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

using model chemistry: wB97X-D/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/6-311+G(3df,2p)
 hartrees
Energy at 0K-2814.239511
Energy at 298.15K 
HF Energy-2814.239511
Nuclear repulsion energy166.418484
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 wB97X-D/6-311+G(3df,2p)
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 3028 3028 24.29 158.10 0.00 0.00
2 A1 1174 1174 0.18 90.43 0.20 0.34
3 A1 609 609 89.77 12.68 0.16 0.28
4 A1 301 301 14.90 20.10 0.12 0.22
5 E 3108 3108 12.90 107.01 0.75 0.86
5 E 3108 3108 12.92 107.06 0.75 0.86
6 E 1457 1457 0.00 0.20 0.75 0.86
6 E 1457 1457 0.00 0.20 0.75 0.86
7 E 584 584 75.93 7.52 0.75 0.86
7 E 584 584 75.97 7.54 0.75 0.86
8 E 100 100 29.97 1.26 0.75 0.86
8 E 100 100 29.96 1.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7805.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7805.2 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 wB97X-D/6-311+G(3df,2p)
ABC
5.40597 0.05485 0.05485

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.179
Mg2 0.000 0.000 -1.112
Br3 0.000 0.000 1.233
H4 0.000 1.016 -3.582
H5 0.880 -0.508 -3.582
H6 -0.880 -0.508 -3.582

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06634.41211.09261.09261.0926
Mg22.06632.34582.66992.66992.6699
Br34.41212.34584.92104.92104.9210
H41.09262.66994.92101.75901.7590
H51.09262.66994.92101.75901.7590
H61.09262.66994.92101.75901.7590

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 111.641
Mg2 C1 H5 111.641 Mg2 C1 H6 111.641
H4 C1 H5 107.217 H4 C1 H6 107.217
H5 C1 H6 107.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.824      
2 Mg 0.688      
3 Br -0.336      
4 H 0.158      
5 H 0.158      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.123 2.123
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.532 0.000 0.000
y 0.000 -34.532 0.000
z 0.000 0.000 -44.246
Traceless
 xyz
x 4.857 0.000 0.000
y 0.000 4.857 0.000
z 0.000 0.000 -9.714
Polar
3z2-r2-19.427
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.726 0.000 0.000
y 0.000 7.725 0.000
z 0.000 0.000 11.697


<r2> (average value of r2) Å2
<r2> 193.887
(<r2>)1/2 13.924