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

using model chemistry: B3LYP/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 B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-2814.256919
Energy at 298.15K 
HF Energy-2814.256919
Nuclear repulsion energy165.863753
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 B3LYP/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 3011 2912 25.13 172.99 0.00 0.00
2 A1 1159 1121 0.98 112.93 0.20 0.34
3 A1 600 581 79.15 14.42 0.18 0.30
4 A1 295 286 15.42 26.79 0.15 0.26
5 E 3084 2982 12.49 114.10 0.75 0.86
5 E 3084 2982 12.49 114.10 0.75 0.86
6 E 1455 1407 0.00 0.19 0.75 0.86
6 E 1455 1407 0.00 0.19 0.75 0.86
7 E 588 569 65.39 7.44 0.75 0.86
7 E 588 569 65.39 7.44 0.75 0.86
8 E 100 97 25.83 1.55 0.75 0.86
8 E 100 97 25.83 1.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7759.1 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 7503.1 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 B3LYP/6-311+G(3df,2p)
ABC
5.38353 0.05446 0.05446

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.192
Mg2 0.000 0.000 -1.117
Br3 0.000 0.000 1.238
H4 0.000 1.018 -3.588
H5 0.881 -0.509 -3.588
H6 -0.881 -0.509 -3.588

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07534.42971.09191.09191.0919
Mg22.07532.35442.67232.67232.6723
Br34.42972.35444.93164.93164.9316
H41.09192.67234.93161.76271.7627
H51.09192.67234.93161.76271.7627
H61.09192.67234.93161.76271.7627

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 111.248
Mg2 C1 H5 111.248 Mg2 C1 H6 111.248
H4 C1 H5 107.638 H4 C1 H6 107.638
H5 C1 H6 107.638
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.813      
2 Mg 0.691      
3 Br -0.323      
4 H 0.148      
5 H 0.148      
6 H 0.148      


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 -2.195 2.195
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.829 0.000 0.000
y 0.000 -34.829 0.000
z 0.000 0.000 -44.121
Traceless
 xyz
x 4.646 0.000 0.000
y 0.000 4.646 0.000
z 0.000 0.000 -9.292
Polar
3z2-r2-18.584
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 7.748 0.000 0.000
y 0.000 7.748 0.000
z 0.000 0.000 12.633


<r2> (average value of r2) Å2
<r2> 195.126
(<r2>)1/2 13.969