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

using model chemistry: PBEPBEultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/Def2TZVPP
 hartrees
Energy at 0K-2813.659808
Energy at 298.15K 
HF Energy-2813.659808
Nuclear repulsion energy165.338417
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 PBEPBEultrafine/Def2TZVPP
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 2963 2963 16.71 167.71 0.00 0.00
2 A1 1106 1106 1.80 93.86 0.15 0.25
3 A1 590 590 73.74 13.43 0.11 0.19
4 A1 290 290 14.15 27.54 0.17 0.28
5 E 3046 3046 9.23 114.29 0.75 0.86
5 E 3046 3046 9.23 114.29 0.75 0.86
6 E 1399 1399 0.01 0.98 0.75 0.86
6 E 1399 1399 0.01 0.98 0.75 0.86
7 E 573 573 67.01 3.78 0.75 0.86
7 E 573 573 67.01 3.78 0.75 0.86
8 E 98 98 21.71 1.21 0.75 0.86
8 E 98 98 21.71 1.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7591.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7591.2 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 PBEPBEultrafine/Def2TZVPP
ABC
5.30602 0.05415 0.05415

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.201
Mg2 0.000 0.000 -1.120
Br3 0.000 0.000 1.241
H4 0.000 1.025 -3.599
H5 0.888 -0.513 -3.599
H6 -0.888 -0.513 -3.599

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08064.44201.09971.09971.0997
Mg22.08062.36142.68252.68252.6825
Br34.44202.36144.94764.94764.9476
H41.09972.68254.94761.77551.7755
H51.09972.68254.94761.77551.7755
H61.09972.68254.94761.77551.7755

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 111.232
Mg2 C1 H5 111.232 Mg2 C1 H6 111.232
H4 C1 H5 107.655 H4 C1 H6 107.655
H5 C1 H6 107.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.624      
2 Mg 0.705      
3 Br -0.438      
4 H 0.119      
5 H 0.119      
6 H 0.119      


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 -2.166 2.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.920 0.000 0.000
y 0.000 -34.920 0.000
z 0.000 0.000 -42.823
Traceless
 xyz
x 3.952 0.000 0.000
y 0.000 3.952 0.000
z 0.000 0.000 -7.903
Polar
3z2-r2-15.806
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 7.645 0.000 0.000
y 0.000 7.645 0.000
z 0.000 0.000 12.620


<r2> (average value of r2) Å2
<r2> 195.915
(<r2>)1/2 13.997