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

using model chemistry: PBEPBE/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/daug-cc-pVDZ
 hartrees
Energy at 0K-2813.619594
Energy at 298.15K 
HF Energy-2813.619594
Nuclear repulsion energy164.246454
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 PBEPBE/daug-cc-pVDZ
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 2957 2957 21.67 222.91 0.00 0.01
2 A1 1077 1077 3.93 112.98 0.19 0.32
3 A1 581 581 75.60 12.73 0.19 0.32
4 A1 286 286 14.59 32.13 0.13 0.24
5 E 3050 3050 10.93 118.81 0.75 0.86
5 E 3050 3050 10.93 118.83 0.75 0.86
6 E 1367 1367 0.03 0.21 0.75 0.86
6 E 1367 1367 0.03 0.21 0.75 0.86
7 E 546 546 62.75 7.48 0.75 0.86
7 E 546 546 62.76 7.44 0.75 0.86
8 E 95 95 21.90 1.96 0.75 0.86
8 E 95 95 21.90 1.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7509.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7509.3 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 PBEPBE/daug-cc-pVDZ
ABC
5.23432 0.05346 0.05346

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.219
Mg2 0.000 0.000 -1.129
Br3 0.000 0.000 1.249
H4 0.000 1.032 -3.622
H5 0.894 -0.516 -3.622
H6 -0.894 -0.516 -3.622

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09004.46851.10791.10791.1079
Mg22.09002.37852.69792.69792.6979
Br34.46852.37854.97944.97944.9794
H41.10792.69794.97941.78761.7876
H51.10792.69794.97941.78761.7876
H61.10792.69794.97941.78761.7876

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 111.317
Mg2 C1 H5 111.317 Mg2 C1 H6 111.317
H4 C1 H5 107.564 H4 C1 H6 107.564
H5 C1 H6 107.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.281      
2 Mg -0.883      
3 Br 0.160      
4 H -0.186      
5 H -0.186      
6 H -0.186      


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 -2.272 2.272
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.191 0.000 0.000
y 0.000 -35.191 0.000
z 0.000 0.000 -43.112
Traceless
 xyz
x 3.960 0.000 0.000
y 0.000 3.960 0.000
z 0.000 0.000 -7.921
Polar
3z2-r2-15.842
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 8.414 0.000 0.000
y 0.000 8.414 0.000
z 0.000 0.000 13.613


<r2> (average value of r2) Å2
<r2> 198.289
(<r2>)1/2 14.082