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

using model chemistry: HF/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 HF/daug-cc-pVDZ
 hartrees
Energy at 0K-2811.694425
Energy at 298.15K 
HF Energy-2811.694425
Nuclear repulsion energy164.694993
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/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 3126 2851 42.04 161.96 0.01 0.01
2 A1 1247 1137 0.06 90.48 0.22 0.36
3 A1 613 559 86.79 15.95 0.20 0.33
4 A1 300 273 17.26 18.82 0.13 0.23
5 E 3202 2921 27.64 121.89 0.75 0.86
5 E 3202 2921 27.64 121.89 0.75 0.86
6 E 1535 1400 0.07 0.25 0.75 0.86
6 E 1535 1400 0.07 0.25 0.75 0.86
7 E 598 546 80.22 7.81 0.75 0.86
7 E 598 546 80.22 7.81 0.75 0.86
8 E 108 98 35.06 1.21 0.75 0.86
8 E 108 98 35.06 1.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8086.1 cm-1
Scaled (by 0.912) Zero Point Vibrational Energy (zpe) 7374.5 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/daug-cc-pVDZ
ABC
5.38195 0.05365 0.05365

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.216
Mg2 0.000 0.000 -1.124
Br3 0.000 0.000 1.247
H4 0.000 1.018 -3.618
H5 0.881 -0.509 -3.618
H6 -0.881 -0.509 -3.618

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.09174.46311.09441.09441.0944
Mg22.09172.37142.69352.69352.6935
Br34.46312.37144.97054.97054.9705
H41.09442.69354.97051.76291.7629
H51.09442.69354.97051.76291.7629
H61.09442.69354.97051.76291.7629

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 111.556
Mg2 C1 H5 111.556 Mg2 C1 H6 111.556
H4 C1 H5 107.308 H4 C1 H6 107.308
H5 C1 H6 107.308
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.327      
2 Mg -0.630      
3 Br -0.216      
4 H -0.160      
5 H -0.160      
6 H -0.160      


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 -2.242 2.242
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.767 0.000 0.000
y 0.000 -34.767 0.000
z 0.000 0.000 -46.144
Traceless
 xyz
x 5.688 0.000 0.000
y 0.000 5.688 0.000
z 0.000 0.000 -11.377
Polar
3z2-r2-22.754
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 7.345 0.000 0.000
y 0.000 7.345 0.000
z 0.000 0.000 10.762


<r2> (average value of r2) Å2
<r2> 198.118
(<r2>)1/2 14.075