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

using model chemistry: HSEh1PBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2813.774902
Energy at 298.15K 
HF Energy-2813.774902
Nuclear repulsion energy166.233352
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/Def2TZVPP
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 3036 3036 18.07 153.18 0.00 0.00
2 A1 1148 1148 0.13 91.11 0.15 0.27
3 A1 608 608 80.18 13.63 0.11 0.20
4 A1 299 299 14.87 22.70 0.16 0.28
5 E 3121 3121 9.79 112.49 0.75 0.86
5 E 3121 3121 9.79 112.50 0.75 0.86
6 E 1442 1442 0.00 1.01 0.75 0.86
6 E 1442 1442 0.00 1.00 0.75 0.86
7 E 582 582 73.39 4.24 0.75 0.86
7 E 582 582 73.39 4.23 0.75 0.86
8 E 101 101 25.82 1.04 0.75 0.86
8 E 101 101 25.82 1.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7790.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7790.5 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/Def2TZVPP
ABC
5.38271 0.05473 0.05473

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -3.183
Mg2 0.000 0.000 -1.114
Br3 0.000 0.000 1.235
H4 0.000 1.018 -3.581
H5 0.881 -0.509 -3.581
H6 -0.881 -0.509 -3.581

Atom - Atom Distances (Å)
  C1 Mg2 Br3 H4 H5 H6
C12.06894.41791.09281.09281.0928
Mg22.06892.34892.66852.66852.6685
Br34.41792.34894.92214.92214.9221
H41.09282.66854.92211.76281.7628
H51.09282.66854.92211.76281.7628
H61.09282.66854.92211.76281.7628

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 111.351
Mg2 C1 H5 111.351 Mg2 C1 H6 111.351
H4 C1 H5 107.528 H4 C1 H6 107.528
H5 C1 H6 107.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.653      
2 Mg 0.770      
3 Br -0.465      
4 H 0.116      
5 H 0.116      
6 H 0.116      


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 -2.146 2.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.624 0.000 0.000
y 0.000 -34.624 0.000
z 0.000 0.000 -43.539
Traceless
 xyz
x 4.457 0.000 0.000
y 0.000 4.457 0.000
z 0.000 0.000 -8.914
Polar
3z2-r2-17.829
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 7.302 0.000 0.000
y 0.000 7.302 0.000
z 0.000 0.000 11.661


<r2> (average value of r2) Å2
<r2> 194.112
(<r2>)1/2 13.932