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

using model chemistry: HF/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 HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-2811.691222
Energy at 298.15K 
HF Energy-2811.691222
Nuclear repulsion energy165.726925
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 HF/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 3123 2837 39.39 143.81 0.00 0.01
2 A1 1265 1150 0.04 89.20 0.21 0.35
3 A1 617 560 87.54 15.79 0.18 0.30
4 A1 305 277 16.92 17.50 0.14 0.25
5 E 3188 2897 25.78 119.08 0.75 0.86
5 E 3188 2897 25.78 119.08 0.75 0.86
6 E 1563 1420 0.03 0.26 0.75 0.86
6 E 1563 1420 0.03 0.26 0.75 0.86
7 E 605 550 80.49 8.10 0.75 0.86
7 E 605 550 80.49 8.10 0.75 0.86
8 E 106 97 35.17 1.03 0.75 0.86
8 E 106 97 35.17 1.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8116.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 7375.0 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 HF/6-311+G(3df,2p)
ABC
5.45253 0.05429 0.05429

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.199
Mg2 0.000 0.000 -1.116
Br3 0.000 0.000 1.239
H4 0.000 1.011 -3.597
H5 0.876 -0.506 -3.597
H6 -0.876 -0.506 -3.597

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08334.43841.08661.08661.0866
Mg22.08332.35512.67922.67922.6792
Br34.43842.35514.94074.94074.9407
H41.08662.67924.94071.75151.7515
H51.08662.67924.94071.75151.7515
H61.08662.67924.94071.75151.7515

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 111.469
Mg2 C1 H5 111.469 Mg2 C1 H6 111.469
H4 C1 H5 107.401 H4 C1 H6 107.401
H5 C1 H6 107.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.847      
2 Mg 0.920      
3 Br -0.437      
4 H 0.121      
5 H 0.121      
6 H 0.121      


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 -2.172 2.172
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.572 0.000 0.000
y 0.000 -34.572 0.000
z 0.000 0.000 -46.151
Traceless
 xyz
x 5.790 0.000 0.000
y 0.000 5.790 0.000
z 0.000 0.000 -11.579
Polar
3z2-r2-23.159
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 7.131 0.000 0.000
y 0.000 7.131 0.000
z 0.000 0.000 10.639


<r2> (average value of r2) Å2
<r2> 195.983
(<r2>)1/2 13.999