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

using model chemistry: B2PLYP=FULLultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-2811.117412
Energy at 298.15K 
HF Energy-2811.014878
Nuclear repulsion energy166.504308
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 B2PLYP=FULLultrafine/6-31G*
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 3067 2910 15.38 105.38 0.00 0.00
2 A1 1226 1163 4.32 57.89 0.08 0.15
3 A1 614 582 65.49 11.26 0.08 0.15
4 A1 308 292 13.47 20.05 0.18 0.31
5 E 3148 2987 13.48 122.19 0.75 0.86
5 E 3148 2987 13.48 122.19 0.75 0.86
6 E 1514 1436 0.03 4.57 0.75 0.86
6 E 1514 1436 0.03 4.57 0.75 0.86
7 E 624 592 87.65 2.43 0.75 0.86
7 E 624 592 87.65 2.43 0.75 0.86
8 E 126 119 23.68 0.55 0.75 0.86
8 E 126 119 23.68 0.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8019.0 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 7607.6 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 B2PLYP=FULLultrafine/6-31G*
ABC
5.36786 0.05483 0.05483

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.186
Mg2 0.000 0.000 -1.106
Br3 0.000 0.000 1.233
H4 0.000 1.019 -3.585
H5 0.883 -0.510 -3.585
H6 -0.883 -0.510 -3.585

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07954.41811.09471.09471.0947
Mg22.07952.33862.68032.68032.6803
Br34.41812.33864.92424.92424.9242
H41.09472.68034.92421.76521.7652
H51.09472.68034.92421.76521.7652
H61.09472.68034.92421.76521.7652

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 111.405
Mg2 C1 H5 111.405 Mg2 C1 H6 111.405
H4 C1 H5 107.471 H4 C1 H6 107.471
H5 C1 H6 107.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.761      
2 Mg 0.567      
3 Br -0.301      
4 H 0.165      
5 H 0.165      
6 H 0.165      


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 -2.148 2.148
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.369 0.000 0.000
y 0.000 -34.369 0.000
z 0.000 0.000 -42.523
Traceless
 xyz
x 4.077 0.000 0.000
y 0.000 4.077 0.000
z 0.000 0.000 -8.154
Polar
3z2-r2-16.309
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 6.041 0.000 0.000
y 0.000 6.041 0.000
z 0.000 0.000 10.384


<r2> (average value of r2) Å2
<r2> 193.553
(<r2>)1/2 13.912