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

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-2814.275383
Energy at 298.15K 
HF Energy-2814.275383
Nuclear repulsion energy164.718429
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/TZVP
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 3024 2920 28.71 166.64 0.00 0.00
2 A1 1186 1145 0.17 83.87 0.31 0.47
3 A1 589 568 68.35 17.72 0.21 0.34
4 A1 286 276 17.45 23.85 0.28 0.44
5 E 3098 2991 13.89 130.06 0.75 0.86
5 E 3098 2991 13.89 130.06 0.75 0.86
6 E 1459 1408 1.99 10.43 0.75 0.86
6 E 1459 1408 1.99 10.43 0.75 0.86
7 E 621 599 74.70 0.38 0.75 0.86
7 E 621 599 74.70 0.38 0.75 0.86
8 E 101 97 31.53 0.56 0.75 0.86
8 E 101 97 31.53 0.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7820.6 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 7550.0 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 B3LYP/TZVP
ABC
5.38369 0.05371 0.05371

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.211
Mg2 0.000 0.000 -1.128
Br3 0.000 0.000 1.247
H4 0.000 1.018 -3.610
H5 0.881 -0.509 -3.610
H6 -0.881 -0.509 -3.610

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.08324.45821.09281.09281.0928
Mg22.08322.37492.68192.68192.6819
Br34.45822.37494.96184.96184.9618
H41.09282.68194.96181.76261.7626
H51.09282.68194.96181.76261.7626
H61.09282.68194.96181.76261.7626

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 111.367
Mg2 C1 H5 111.367 Mg2 C1 H6 111.367
H4 C1 H5 107.511 H4 C1 H6 107.511
H5 C1 H6 107.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.913      
2 Mg 1.081      
3 Br -0.597      
4 H 0.143      
5 H 0.143      
6 H 0.143      


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 -2.673 2.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.788 0.000 0.000
y 0.000 -34.788 0.000
z 0.000 0.000 -45.200
Traceless
 xyz
x 5.206 0.000 0.000
y 0.000 5.206 0.000
z 0.000 0.000 -10.413
Polar
3z2-r2-20.825
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 5.267 0.000 0.000
y 0.000 5.267 0.000
z 0.000 0.000 11.385


<r2> (average value of r2) Å2
<r2> 197.644
(<r2>)1/2 14.059