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

using model chemistry: B2PLYP/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-2813.741266
Energy at 298.15K 
HF Energy-2813.592154
Nuclear repulsion energy165.906992
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/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 ?a 604 604 80.50 13.17 0.18 0.31
2 ?a 587 587 67.38 7.55 0.75 0.86
3 ?a 586 586 67.39 7.54 0.75 0.86
4 A1 3034 3034 21.90 195.32 0.00 0.00
5 A1 1164 1164 0.91 107.30 0.21 0.34
5 A1 299 299 14.96 26.16 0.13 0.23
6 E 3111 3111 12.83 109.01 0.75 0.86
6 E 3111 3111 12.84 108.99 0.75 0.86
7 E 1464 1464 0.05 0.18 0.75 0.86
7 E 1463 1463 0.05 0.18 0.75 0.86
8 E 102 102 27.29 1.63 0.75 0.86
8 E 101 101 27.29 1.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7812.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7812.2 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 B2PLYP/daug-cc-pVTZ
ABC
5.39758 0.05446 0.05446

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.193
Mg2 0.000 0.000 -1.115
Br3 0.000 0.000 1.237
H4 0.000 1.016 -3.590
H5 0.880 -0.508 -3.590
H6 -0.880 -0.508 -3.590

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07774.43041.09101.09101.0910
Mg22.07772.35272.67502.67502.6750
Br34.43042.35274.93294.93294.9329
H41.09102.67504.93291.76041.7604
H51.09102.67504.93291.76041.7604
H61.09102.67504.93291.76041.7604

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 111.320
Mg2 C1 H5 111.320 Mg2 C1 H6 111.320
H4 C1 H5 107.561 H4 C1 H6 107.561
H5 C1 H6 107.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.905      
2 Mg -0.019      
3 Br -0.556      
4 H 0.493      
5 H 0.493      
6 H 0.493      


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 -2.140 2.140
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.845 0.000 0.000
y 0.000 -34.845 0.000
z 0.000 0.000 -44.776
Traceless
 xyz
x 4.966 0.000 0.000
y 0.000 4.966 0.000
z 0.000 0.000 -9.931
Polar
3z2-r2-19.863
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 7.895 0.000 0.000
y 0.000 7.895 0.000
z 0.000 0.000 12.281


<r2> (average value of r2) Å2
<r2> 195.250
(<r2>)1/2 13.973