return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/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 HSEh1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-2813.735829
Energy at 298.15K 
HF Energy-2813.735829
Nuclear repulsion energy165.179411
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/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 3029 3029 21.52 222.26 0.00 0.01
2 A1 1063 1063 0.58 24.28 0.06 0.12
3 A1 600 600 81.59 12.00 0.17 0.30
4 A1 295 295 15.14 25.25 0.13 0.23
5 E 3127 3127 11.89 114.46 0.75 0.86
5 E 3127 3127 11.89 114.50 0.75 0.86
6 E 1413 1413 0.02 0.19 0.75 0.86
6 E 1413 1413 0.02 0.19 0.75 0.86
7 E 562 562 69.68 7.22 0.75 0.86
7 E 562 562 69.69 7.24 0.75 0.86
8 E 100 100 25.97 1.57 0.75 0.86
8 E 100 100 25.97 1.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7693.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7693.9 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/daug-cc-pVDZ
ABC
5.30958 0.05407 0.05407

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.201
Mg2 0.000 0.000 -1.123
Br3 0.000 0.000 1.242
H4 0.000 1.025 -3.603
H5 0.887 -0.512 -3.603
H6 -0.887 -0.512 -3.603

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.07824.44331.10081.10081.1008
Mg22.07822.36522.68362.68362.6836
Br34.44332.36524.95264.95264.9526
H41.10082.68364.95261.77491.7749
H51.10082.68364.95261.77491.7749
H61.10082.68364.95261.77491.7749

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 111.424
Mg2 C1 H5 111.424 Mg2 C1 H6 111.424
H4 C1 H5 107.450 H4 C1 H6 107.450
H5 C1 H6 107.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.253      
2 Mg -0.804      
3 Br 0.043      
4 H -0.164      
5 H -0.164      
6 H -0.164      


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 -2.241 2.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.830 0.000 0.000
y 0.000 -34.830 0.000
z 0.000 0.000 -43.636
Traceless
 xyz
x 4.403 0.000 0.000
y 0.000 4.403 0.000
z 0.000 0.000 -8.806
Polar
3z2-r2-17.612
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 7.971 0.000 0.000
y 0.000 7.971 -0.000
z 0.000 -0.000 12.432


<r2> (average value of r2) Å2
<r2> 196.310
(<r2>)1/2 14.011