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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVDZ
 hartrees
Energy at 0K-2813.728967
Energy at 298.15K 
HF Energy-2813.728967
Nuclear repulsion energy165.521047
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 HSEh1PBE/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 3038 2923 17.05 135.24 0.00 0.00
2 A1 1135 1091 1.38 59.97 0.10 0.18
3 A1 606 583 73.58 13.12 0.09 0.16
4 A1 299 288 14.61 19.43 0.19 0.32
5 E 3137 3017 7.40 132.59 0.75 0.86
5 E 3137 3017 7.40 132.61 0.75 0.86
6 E 1421 1367 0.01 3.42 0.75 0.86
6 E 1421 1367 0.01 3.42 0.75 0.86
7 E 582 560 83.63 4.22 0.75 0.86
7 E 582 560 83.63 4.22 0.75 0.86
8 E 103 99 24.62 0.62 0.75 0.86
8 E 103 99 24.62 0.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7783.0 cm-1
Scaled (by 0.9619) Zero Point Vibrational Energy (zpe) 7486.5 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 HSEh1PBE/cc-pVDZ
ABC
5.28184 0.05431 0.05431

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.194
Mg2 0.000 0.000 -1.119
Br3 0.000 0.000 1.240
H4 0.000 1.027 -3.596
H5 0.890 -0.514 -3.596
H6 -0.890 -0.514 -3.596

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07484.43371.10311.10311.1031
Mg22.07482.35892.68102.68102.6810
Br34.43372.35894.94324.94324.9432
H41.10312.68104.94321.77961.7796
H51.10312.68104.94321.77961.7796
H61.10312.68104.94321.77961.7796

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 111.348
Mg2 C1 H5 111.348 Mg2 C1 H6 111.348
H4 C1 H5 107.531 H4 C1 H6 107.531
H5 C1 H6 107.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.382      
2 Mg 0.532      
3 Br -0.327      
4 H 0.059      
5 H 0.059      
6 H 0.059      


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 -2.187 2.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.333 0.000 0.000
y 0.000 -34.333 0.000
z 0.000 0.000 -42.681
Traceless
 xyz
x 4.174 0.000 0.000
y 0.000 4.174 0.000
z 0.000 0.000 -8.349
Polar
3z2-r2-16.697
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 6.081 0.000 0.000
y 0.000 6.081 -0.000
z 0.000 -0.000 10.768


<r2> (average value of r2) Å2
<r2> 195.161
(<r2>)1/2 13.970